Search Captions & Ask AI

The Case of Melissa Casias and the Erased Evidence

April 29, 2026 / 01:29:55

This episode covers the disappearance of Melissa Casillas from Taos County, New Mexico, and the conflicting theories surrounding her case. Hosts Ashley Flowers and Brit discuss the timeline of events leading up to Melissa's vanishing, the reactions of her family, and the investigation's findings.

Melissa was last seen on June 26, 2025, when she dropped off lunch for her daughter, Sierra. Following her disappearance, her husband Mark and daughter Sierra reported her missing, raising concerns about her well-being. Family members had differing opinions on whether Melissa left voluntarily or was a victim of foul play.

Key discussions include the discovery of Melissa's belongings at home, the factory reset of her phones, and the involvement of law enforcement. The episode highlights the tension between Melissa's family and Mark, with accusations of financial strain and marital issues surfacing.

As the investigation unfolds, a witness claims to have seen Melissa walking along a highway, prompting further speculation. The episode concludes with the ongoing search for Melissa and the emotional toll on her family.

Listeners are encouraged to provide any information that could assist in locating Melissa.

TL;DR

Melissa Casillas vanished in Taos County, sparking conflicting theories about her disappearance and ongoing search efforts.

Episode

1:29:55
00:00:00
Hi Crime Junkies, I'm your host Ashley
00:00:02
Flowers.
00:00:02
>> And I'm Brit. You guys, last year I
00:00:05
received an email from a Crime Junkie. A
00:00:07
woman named Jasmine wanted help because
00:00:09
her aunt had recently vanished from Taos
00:00:11
County, New Mexico
00:00:13
and no one could agree on what happened
00:00:15
to her.
00:00:17
But everyone did agree to speak with us
00:00:20
because at the heart of it, they all say
00:00:22
they want to know what happened to her.
00:00:25
Her husband and her daughter think that
00:00:26
she left on her own. Other family
00:00:29
believes that she was a victim of foul
00:00:31
play.
00:00:32
To be honest with you,
00:00:33
I don't know what to believe. Each side
00:00:37
believes their theory so fervently that
00:00:38
I'm afraid my recounting of the facts as
00:00:41
I know them are going to upset everyone
00:00:43
because even the facts don't make sense.
00:00:46
But that usually means that we're
00:00:47
missing [music] something, a piece of
00:00:49
the puzzle that maybe one of you out
00:00:52
there hearing this right now might have.
00:00:55
And there is a small chance that missing
00:00:58
piece has bigger implications than I
00:01:00
could have ever imagined when I first
00:01:03
read Jasmine's [music] email last year.
00:01:05
This is the story of Melissa Casillas.
00:01:15
On the afternoon of Thursday, June 26th,
00:01:17
2025, 18-year-old Sierra Casillas is
00:01:20
working at a coffee shop in Taos, New
00:01:22
Mexico when she steps away to check a
00:01:24
voicemail from her dad, Mark. Now his
00:01:27
tone is tight, like something is off. He
00:01:30
wanted her to know that he'd gotten a
00:01:31
call from her mom's supervisor who told
00:01:33
him that Melissa hadn't shown up for
00:01:35
work [music] that day.
00:01:37
Now to Mark, that seems impossible
00:01:39
because he and Melissa both work at Los
00:01:41
Alamos National Laboratory. He is a
00:01:43
superintendent, she's an administrative
00:01:45
assistant. They share a car and commute
00:01:47
together every single day, including
00:01:50
that day. So how could she not be there?
00:01:53
But Sierra already knows something he
00:01:55
doesn't, which is that Melissa drove the
00:01:57
hour and 15 minutes back from the lab
00:02:00
after dropping Mark off. So, she was
00:02:02
there at the house at like 7:30,
00:02:04
7:45-ish [music]
00:02:05
when Sierra woke up that morning, which
00:02:07
was way out of the norm, by the way.
00:02:09
But, she told Sierra that she had
00:02:10
forgotten her security badge. And since
00:02:13
she was back home anyway, she would
00:02:14
probably just work remotely or maybe
00:02:16
even take the day off. Now, Sierra kind
00:02:18
of assumes that she had done the latter
00:02:20
because she saw her mom for a second
00:02:22
time later in the day, just before 1:00
00:02:25
when she'd stop by the coffee shop
00:02:26
Sierra works at to bring her lunch.
00:02:28
Plus, she'd texted her about a half an
00:02:29
hour after that. So, all to say, like,
00:02:32
even though her dad seems worried,
00:02:34
Sierra wasn't. Now, since she's at least
00:02:36
had some kind of communication with
00:02:37
Melissa in the last hour, Mark asked her
00:02:40
to text her mom. And she's surprised
00:02:42
when that little message bubble turns
00:02:43
green. iPhone users know what that
00:02:45
means. That message didn't deliver like
00:02:48
normal. Phone's like off or there is no
00:02:50
like regular service, something.
00:02:52
So, she opens up the location app where
00:02:54
she can normally see her mom's face pop
00:02:56
up. But, this time
00:02:59
nothing loads. Melissa's location has
00:03:01
just stopped transmitting. That's when
00:03:04
the worry starts to creep in for her
00:03:06
because her mom never lets her phone
00:03:09
die.
00:03:10
This is all concerning enough that
00:03:11
Sierra decides to leave work early to
00:03:14
make sure that her mom's okay. Their
00:03:16
house is just a few miles away. She's
00:03:18
there by like 3:30. The family's white
00:03:20
Jetta is there in the driveway. Their
00:03:22
dogs are outside alone. And that is a
00:03:26
little bit odd since they're really
00:03:27
protective and usually stick to Melissa
00:03:29
like glue. But, inside things are even
00:03:33
stranger.
00:03:34
Melissa's not there, but lots of her
00:03:37
stuff is. On the kitchen table, Sierra
00:03:40
finds her mom's work phone and badge,
00:03:42
[music]
00:03:42
her keys, and this small gold chain that
00:03:45
her mother-in-law gave her that she
00:03:47
normally wears like every single day.
00:03:49
Then, in the loft area of their house
00:03:51
that what connects to her bedroom,
00:03:53
Sierra sees a paycheck that she had
00:03:55
given her mom that afternoon to deposit
00:03:57
for her. And finally, she goes into her
00:03:59
mom's office where she finds Melissa's
00:04:02
purse, [music] her wallet, and both of
00:04:05
her personal cell phones, her old phone
00:04:07
and then her new one that she just
00:04:09
replaced it with. When Sierra picks them
00:04:11
up, like this is when panic sets in
00:04:13
because
00:04:14
both phones show a welcome screen. That
00:04:18
backdrop that you see when a device is
00:04:20
brand new, except we know these aren't
00:04:22
new.
00:04:23
And Sierra realizes that they have been
00:04:25
factory reset, like wiped clean. And
00:04:29
when she tries to log into Melissa's
00:04:31
iCloud, it seems like the password has
00:04:34
been changed. So, from the house, Sierra
00:04:37
frantically calls her dad. He's not far
00:04:40
behind. He'd caught a ride with a
00:04:42
co-worker. So, whatever's going on, they
00:04:43
can figure it out together when he gets
00:04:45
home. And when he gets there, he walks
00:04:47
through the property with a different
00:04:49
lens. Mark told us that he is a hunter
00:04:51
and a professional outfitter, someone
00:04:53
who takes paying clients through back
00:04:55
country terrain. So, he like knows how
00:04:57
to read the land. And right away, he
00:04:59
began looking for signs of a struggle.
00:05:01
And Melissa's tough, and she's not
00:05:03
someone who would have gone down without
00:05:05
a fight. If someone forced her out of
00:05:06
the house, there would be evidence of
00:05:08
it.
00:05:10
But there isn't. Nothing is missing, and
00:05:13
the only thing that catches his eye is
00:05:15
an unfamiliar set of tire tracks in the
00:05:17
driveway, but they share that driveway
00:05:19
with a neighbor. Now, from what he can
00:05:20
tell, he says they're still unknown,
00:05:22
maybe not the neighbor's car, but they
00:05:23
look like they might have come from a
00:05:25
Jeep. Not knowing what else to do, Mark
00:05:27
picks up the phone and calls New Mexico
00:05:30
State Police Dispatch right around 5:00
00:05:32
[music] p.m. New Mexico State Police,
00:05:34
this is Thomas.
00:05:36
Yeah, this is uh Mark Cassias. Uh you
00:05:40
know what, we're um we cannot locate my
00:05:42
wife. Uh we haven't heard from her all
00:05:45
day. Uh
00:05:47
from work to work this morning was the
00:05:48
last time I saw her work. She My
00:05:49
daughter saw her
00:05:51
around 1:00. All her stuff is here in
00:05:54
the house, but she's not here and it's
00:05:56
just not like her to not call or check
00:05:58
in and and take her purse and her phone
00:06:00
and it looks like her phone is been My
00:06:03
daughter says it it looks like it's been
00:06:05
reset, but there you know, so we looked
00:06:08
all around the house everywhere on our
00:06:10
property. We cannot find her or nothing
00:06:12
and
00:06:13
I don't know what to do. The car that
00:06:15
she was in is parked here at the house.
00:06:17
The keys are here. The house was locked.
00:06:19
Uh everything everything was was
00:06:23
is here. You know what I mean? So she
00:06:24
she went from the plaza. She came home.
00:06:27
The car was here parked in the yard. The
00:06:29
keys are on the kitchen table. What's
00:06:31
her name?
00:06:32
Melissa Cassias.
00:06:34
And we called the hospital to see
00:06:35
because I mean, you know, if anyone No
00:06:38
one There's no one in there
00:06:40
you know, at all like that cuz we
00:06:42
thought well, maybe if something
00:06:43
happened to her. Her purse and
00:06:45
everything's here, so no one would be
00:06:47
able to identify her.
00:06:52
And all you said was she took was her
00:06:54
phone?
00:06:56
She didn't take nothing. That's the
00:06:57
thing is her phone and everything's here
00:06:58
and she always takes her stuff with her.
00:07:06
My daughter was trying to track her
00:07:07
location and they always track each
00:07:09
other.
00:07:10
Mhm. But her But her phone's wiped. The
00:07:12
thing is well, we can't get in she would
00:07:14
never have wiped all the pictures off
00:07:16
and all the information off of her
00:07:17
phone.
00:07:18
Officers are dispatched to the Cassias
00:07:20
home and after getting a quick walk
00:07:22
through of the house, they ask Mark and
00:07:24
Sierra to lay out their day [music] in
00:07:26
detail. Now Mark says that he and
00:07:28
Melissa left for work early that morning
00:07:30
as usual. And we're talking like early
00:07:32
early. His shift starts at 6:30 in the
00:07:34
morning. And And they live like over an
00:07:36
hour away.
00:07:37
>> Yeah, and Melissa was behind the wheel.
00:07:39
And like she always did, she dropped him
00:07:41
off at his building at around 6:15 and
00:07:43
then she would drive to her building on
00:07:45
campus and park her car there. But today
00:07:48
Mark reminded Melissa that he needed to
00:07:50
run to the bank at 11:00, so she agreed
00:07:52
to bring the car back to him then. Now,
00:07:54
what he didn't know is that she turned
00:07:56
around and went home.
00:07:58
We know Sierra woke up at 7:45 to find
00:08:01
her mom there, which surprised her. But
00:08:03
when Sierra mentions that Melissa's
00:08:05
excuse about like being home was like
00:08:07
her forgotten badge, Mark says, "Wait,
00:08:09
that that can't be right." He had
00:08:11
watched Melissa hand her badge to
00:08:13
security at the guard check himself when
00:08:16
they got to the lab that morning. Mark
00:08:18
says that he started calling and texting
00:08:21
Melissa at around 10:45, but he wasn't
00:08:23
getting anything back, which he says
00:08:25
concerned him cuz A, they normally talk
00:08:28
throughout the day. B, more than needing
00:08:30
to go to the bank at 11:00, like she was
00:08:32
his ride home, but she seemed to be MIA.
00:08:36
So he eventually asked Sierra to pass
00:08:38
along a question to her mom. Should he
00:08:40
just find another ride home?
00:08:41
>> And did they often communicate through
00:08:43
Sierra like that?
00:08:43
>> No, never. So that stood out even if she
00:08:47
didn't think too much of it at the time,
00:08:49
but like now it does. And so Sierra
00:08:51
reaches out and she gets a response from
00:08:52
her mom. Yes, tell him to find a ride
00:08:54
home. That was at 1:33 p.m. Not too long
00:08:59
after she'd stopped by to bring Sierra
00:09:01
lunch.
00:09:01
>> And why isn't she just answering Mark?
00:09:04
This is the thing, I couldn't tell you.
00:09:06
>> I mean, I'd be pissed. Well, Mark says
00:09:07
that it wasn't unheard of for him to get
00:09:09
rides home with a colleague, so he says
00:09:12
that like I mean, he doesn't say he was
00:09:13
pissed or whatever, he just says he
00:09:14
makes this plan, didn't think much more
00:09:16
of it until Melissa's supervisor called
00:09:19
him at around 2:00 saying that she'd
00:09:21
been a no call, no show, which he says
00:09:23
that is what totally threw him for a
00:09:25
loop. Now, on the phone with dispatch,
00:09:27
Mark had said that Melissa didn't take
00:09:30
anything with her. But when he and
00:09:32
Sierra actually look more carefully, a
00:09:34
few small things are missing.
00:09:37
Melissa's toothbrush, her reading
00:09:39
glasses, and sunglasses. And most
00:09:42
significantly, what they calculate to be
00:09:45
a 90-day supply of her thyroid
00:09:47
medication.
00:09:48
>> That doesn't exactly scream foul play.
00:09:51
No, but Melissa just leaving without a
00:09:54
word to her family does not make sense
00:09:57
either. Mark tells police that they were
00:10:00
supposed to leave the next morning for a
00:10:02
camping trip. And beyond that, Melissa
00:10:04
is a devoted mother. Mark has three
00:10:07
daughters from a previous marriage, but
00:10:09
Sierra is Melissa's only child, and the
00:10:11
two of them are close in a way that is
00:10:14
hard to overstate. Especially after
00:10:16
Sierra survived a car accident in 2022
00:10:19
that killed her best friend, a girl who
00:10:22
had been like a sister to her. And from
00:10:24
that, Sierra suffered serious injuries,
00:10:26
and the emotional damage lingered for
00:10:29
longer than the physical. Like it had
00:10:30
been a rough few years.
00:10:33
But things were finally looking up.
00:10:35
Sierra had just graduated high school.
00:10:37
She was set to move to Albuquerque in
00:10:39
the fall for beauty school so she could
00:10:41
become an aesthetician. And Melissa had
00:10:43
planned to rent a two-bedroom apartment
00:10:45
there to like stay with her for the
00:10:46
first couple of months just to like get
00:10:48
her settled. And Mark told us that he
00:10:50
planned to kind of go back and forth.
00:10:52
Plus, he tells police that they have a
00:10:54
strong marriage. Melissa has never
00:10:56
mentioned wanting to leave him, like
00:10:58
never mentioned wanting to leave the
00:10:59
girls, none of it. Like this just
00:11:01
doesn't make sense.
00:11:02
>> Right, so why would she walk away from
00:11:04
all of that? That's the question that
00:11:06
hangs in the air as family members who
00:11:08
had gotten word about her being missing
00:11:11
start arriving. Like Melissa's parents
00:11:14
[music] and her brother, her sister
00:11:15
Trudy, and Trudy's daughter Jasmine.
00:11:18
Melissa's parents, Jose and Joanne
00:11:20
Mondragon, live nearby, although they
00:11:23
had been in Albuquerque visiting Trudy
00:11:25
that day. But once they heard what was
00:11:27
going on from Sierra, they were in the
00:11:28
car. And these are long-time Crime
00:11:32
Junkie listeners. So, even in shock,
00:11:34
they said that they felt like they were
00:11:36
prepared and knew what to do. They
00:11:38
worked the phones during the 2 and 1/2
00:11:40
hour drive to Taos, calling relatives
00:11:43
and hospitals, hoping that Melissa would
00:11:45
be home safe by the time that they got
00:11:46
there. Instead, they pulled up to a
00:11:48
property bathed in police lights.
00:11:51
[music] And they were told to wait
00:11:52
outside, away from Mark and Sierra. Now,
00:11:56
they don't believe for a second that
00:11:58
Melissa left on her own. Something bad
00:12:01
must have happened. And they already
00:12:03
have someone in mind, Diego Martinez,
00:12:06
who is Sierra's ex-boyfriend. Now, Diego
00:12:09
had been behind the wheel in the crash
00:12:11
[music] that killed Sierra's best
00:12:13
friend. He suffered a traumatic brain
00:12:15
injury in the crash, and according to
00:12:18
the family, his behavior became
00:12:20
frightening.
00:12:21
In 2024, Sierra took out a restraining
00:12:23
order against him, citing physical
00:12:25
abuse, break-ins, stolen keys, and
00:12:28
threats against her and loved ones,
00:12:30
including specific threats against
00:12:32
Melissa. Diego had also sent Melissa
00:12:35
sexually explicit text messages. And did
00:12:37
Mark and Sierra bring him up at any
00:12:39
point, too? Not that I know of. Still
00:12:42
though, from the very first night,
00:12:43
Diego's name is already on the table.
00:12:46
But before that thread can even go
00:12:48
anywhere, something else comes up.
00:12:50
Jasmine has been blasting [music]
00:12:52
missing person posts on social media
00:12:54
since the moment she understood what was
00:12:55
happening. And almost immediately,
00:12:58
someone had reached out. And this isn't
00:13:00
just anybody. This is a guy named Lloyd,
00:13:03
who has known both Melissa and Mark
00:13:04
since they were children.
00:13:07
And he tells Melissa's brother that he
00:13:09
saw Melissa earlier that afternoon
00:13:11
walking along a highway close to her
00:13:13
house, highway 518, in a spot that is
00:13:16
just a couple of miles away. He says
00:13:18
that she was wearing a white sweater,
00:13:19
and she was kind of like stumbling or
00:13:21
staggering. And there was this old blue
00:13:24
Dodge truck nearby, sort of lurking.
00:13:28
Now,
00:13:29
this is where the cohesive story I wish
00:13:32
I could tell you fractures right down
00:13:35
the middle. Because from this point on,
00:13:38
almost every significant moment in this
00:13:40
case is going to come in at least two
00:13:42
versions, with plenty of contradictions
00:13:45
along the way. So, let me just lay out
00:13:47
the sides for you right now.
00:13:49
In one corner, you have Mark and all
00:13:52
four of his daughters, including Sierra.
00:13:54
I'm going to call them the Casillas
00:13:56
household, even though they don't all
00:13:58
live there. In the other corner, you
00:14:00
have Melissa's parents, some siblings,
00:14:02
her niece Jasmine, some friends, and I'm
00:14:04
going to call them the Mondragons, even
00:14:06
though not everyone on that side carries
00:14:08
that name. And as far as the Mondragons
00:14:11
are concerned, this moment, when this
00:14:14
tip from Lloyd comes in, is the exact
00:14:17
moment that they begin to become
00:14:20
suspicious.
00:14:22
Not of Diego, who they'd first told
00:14:24
police about,
00:14:25
but of Mark.
00:14:31
When that tip from Lloyd comes in,
00:14:33
Jasmine rushes to tell police what he
00:14:36
saw. They have to check this out, go to
00:14:38
where he saw her. She could be hurt, she
00:14:41
could be
00:14:42
Jasmine doesn't know, but this at least
00:14:43
is a trail that they can follow, right?
00:14:46
But instead of being excited about the
00:14:48
lead, Mark immediately shuts it down. He
00:14:52
tells officers there's no way that this
00:14:54
was Melissa, because she wasn't wearing
00:14:56
a white sweater that day. Sierra
00:14:58
remembers that she had on a light
00:14:59
turquoise top when she saw her like
00:15:01
around lunchtime.
00:15:02
>> Okay, she could have changed. And also,
00:15:05
he says, Melissa doesn't have a limp.
00:15:08
So, in his mind, the top's neither here
00:15:10
nor there, because he's like, whoever
00:15:11
this woman is that's like stumbling or
00:15:13
staggering, this is definitely not my
00:15:16
wife.
00:15:16
>> Unless it is and she got hurt, which is
00:15:19
like all the more reason to go check it
00:15:20
out and make sure it's not her.
00:15:23
>> Listen, I know. But like, here's the
00:15:25
thing, the biggest WTF moment for me is
00:15:28
that
00:15:29
police just go along with it. No need to
00:15:32
check that out. Mark says it's not her,
00:15:34
we're moving on. You're kidding me. I
00:15:36
wish I was exaggerating. But no. What if
00:15:39
she got the limp because she like jumped
00:15:41
out of her car? I mean, she could have
00:15:42
been drugged.
00:15:43
>> The girl could have tripped over a
00:15:45
pebble while just like out on a walk.
00:15:47
Like, I could talk about this for hours
00:15:49
and we're going to get into it more
00:15:51
later, I promise. But
00:15:53
they decide not to look. And in the
00:15:55
meantime, that night, when the
00:15:57
Mondragons get to talk to Mark, they're
00:16:00
expecting a husband out of his mind with
00:16:03
worry.
00:16:04
>> Yeah. Instead, what they get is anger.
00:16:07
Mark tells them that he and Melissa had
00:16:10
gotten into an argument that morning
00:16:12
before they left for [music] work. He
00:16:14
had caught her vaping. They bickered
00:16:17
throughout the entire drive to the lab.
00:16:19
[music] And when she dropped him off,
00:16:21
she told him to find his own effing ride
00:16:24
home. Wait.
00:16:26
Mark didn't mention any of that to
00:16:28
police.
00:16:29
>> Oh, no. And he doesn't for a while. But
00:16:32
if the Mondragons' account is accurate,
00:16:34
it means that Mark knew from the jump
00:16:36
that Melissa wasn't planning to drive
00:16:38
him home. Not because of anything that
00:16:40
Sierra later relayed in the day. And on
00:16:43
top of that, they say that Mark starts
00:16:46
badmouthing Melissa almost immediately,
00:16:49
telling them that Melissa had been on a
00:16:51
roll with eff-ups lately, that she had
00:16:53
destroyed their finances, accumulating
00:16:56
debt, getting backed up on tax payments,
00:16:59
And are police searching the place at
00:17:00
all, or are they just taking all these
00:17:02
statements that first night? No, they
00:17:04
they searched. Mark lets police,
00:17:07
including lead investigator Agent
00:17:09
Ezekiel Esquivel Mata. He goes through
00:17:11
the house and like they take
00:17:13
photographs. And while there was nothing
00:17:15
that stood out to the first responding
00:17:17
officer who did that like once over of
00:17:19
the place.
00:17:20
You know, when you come at it with an
00:17:21
investigator's eye and you like zoom in,
00:17:24
there is more that you pick up on. Like
00:17:27
they hone in on a pair of Mark's hunting
00:17:29
boots sitting [music] on his and
00:17:30
Melissa's bedroom floor next to a fish
00:17:32
tank. Some of the mud on them look
00:17:34
fresh, but Mark insists [music] that he
00:17:37
hadn't worn those boots in ages. And he
00:17:39
points to what he says is proof, a
00:17:40
spider web inside. Nobody put their foot
00:17:43
in there recently. Except when agents
00:17:46
look, they don't see any spider webs.
00:17:49
For a man who says that he's been at
00:17:50
work at Inside all day, fresh mud on
00:17:53
hunting boots is a hard thing to explain
00:17:56
away. Then, when agents review the scene
00:17:59
photos the next [music] morning, this is
00:18:01
now Friday, June 27th, they get more
00:18:05
suspicious.
00:18:06
Right next to one of those boots is a
00:18:09
dried drop
00:18:12
of something. Something that looks an
00:18:14
awful lot like it could be blood. So
00:18:17
when the Mondragons and Melissa's
00:18:19
friends are out canvassing neighborhoods
00:18:22
and hanging out missing person flyers,
00:18:24
Mark goes in to talk to police. Agents
00:18:27
put the photos in front of him. They ask
00:18:29
him about the stain, but Mark says he's
00:18:31
sure that's not blood. But he's getting
00:18:34
like more and more agitated as the
00:18:36
questioning continues until finally he
00:18:38
asks if he should get a lawyer and he
00:18:41
just ends it right there. But they
00:18:43
detain him and seize his phone, which is
00:18:47
worth noting because despite what he
00:18:48
apparently later tells his daughters, he
00:18:51
did not hand it over voluntarily
00:18:53
according to what police told us. They
00:18:55
have to apply for a search warrant to
00:18:57
get its contents by doing a forensic
00:18:59
download, which that's going to take
00:19:01
some time. But one thing they're able to
00:19:03
do really quickly while he's at the
00:19:05
station that day is verify his alibi.
00:19:09
The lab confirms that he was at work
00:19:11
that day And even his drive home is
00:19:14
accounted for because of that co-worker
00:19:15
who gave him a ride. He confirms that
00:19:17
trip. However, that doesn't close
00:19:20
anything out. No, it doesn't seem like
00:19:22
he could have physically done anything
00:19:23
to Melissa, but that doesn't prove that
00:19:26
he wasn't involved or that he doesn't
00:19:28
know more than he's letting on. So,
00:19:30
police get a search warrant for the
00:19:32
comb. They take Melissa's phones, they
00:19:34
take Mark's boots, and they run a
00:19:35
presumptive test on that stain by the
00:19:38
fish tank,
00:19:39
which comes back positive for blood. So,
00:19:43
they send out swabs of that for further
00:19:45
testing. Meanwhile, the Mondragons
00:19:48
decide to organize a search party, which
00:19:51
kicks off at Melissa's parents' house on
00:19:53
Saturday, June 28th. Now, Mark says he
00:19:55
didn't even know that that was
00:19:57
happening. I guess he stumbled across
00:19:59
news of it on Facebook. But once he
00:20:01
does, he shows up. Not to help them look
00:20:04
for his missing wife, though.
00:20:06
According to the Mondragons, he comes to
00:20:08
tell them that he's figured it all out,
00:20:11
and he is sure that Melissa left on her
00:20:13
own. He says he'd spent some time going
00:20:16
through her paperwork and discovered
00:20:18
that their finances were in far worse
00:20:20
shape than he had actually realized.
00:20:23
>> I mean, is he basically showing up and
00:20:25
saying, "Don't look for her again?" I
00:20:27
don't think those words, "Don't look for
00:20:29
her," came out of his mouth, but he is
00:20:32
there to tell them why he thinks she
00:20:34
left on her own. He already told them
00:20:36
about the finances, though. Like, he
00:20:37
mentioned it that very first night.
00:20:40
>> Right, but he now he wants them to
00:20:41
understand like the severity of it,
00:20:43
which he says he is just now finally
00:20:46
like getting a good grasp of. Though,
00:20:47
like the signs seem to have been there.
00:20:50
So, starting a couple of years back,
00:20:52
that's when Mark says he got this
00:20:55
humiliating wake-up call. He had taken
00:20:57
some co-workers out to lunch, tried to
00:20:59
pay, and his cards were declined. He
00:21:01
looked into it and learned that his
00:21:03
checking and credit accounts were
00:21:04
overdrawn, and that his savings account
00:21:07
had been drained. When he confronted
00:21:09
Melissa about it, she told him that
00:21:11
she'd used the savings to pay their
00:21:13
taxes. An explanation that he accepted.
00:21:16
But it rattled him enough that he
00:21:18
decided to separate their finances. He
00:21:22
told us that he took over the major
00:21:23
bills like vehicle payments, health
00:21:26
insurance, and he left Melissa to handle
00:21:28
the smaller monthly expenses. But by
00:21:30
June of 2025, there were at least two
00:21:34
huge signs that things had only gotten
00:21:37
worse. One, their wages were being
00:21:40
garnished.
00:21:41
And two, their security clearances at
00:21:45
the lab had been suspended because of
00:21:47
their deteriorating financial situation.
00:21:50
Melissa even had to move workspaces
00:21:51
because she no longer had the clearance
00:21:53
required for the office where she'd been
00:21:56
working. Then
00:21:57
how can he claim that he didn't know how
00:22:01
bad things were? Well, I mean, he's more
00:22:02
saying that he didn't realize how
00:22:05
catastrophic it had gotten, which is
00:22:07
kind of hard for the Mondragons to
00:22:09
believe because the couple had been hit
00:22:11
with more than a dozen lawsuits or
00:22:13
claims over the years. Mostly tied to
00:22:15
unpaid debts, business disputes, and
00:22:17
family matters.
00:22:19
But he maintains that he was in the dark
00:22:20
on a lot of this stuff. That Melissa was
00:22:22
like intercepting legal paperwork and
00:22:25
hiding letters from attorneys or
00:22:26
whatever.
00:22:27
>> doesn't make any sense. Like why would
00:22:28
she want to do that? I have no idea. But
00:22:32
either way, like it seems like all of
00:22:34
this financial stuff was coming to a
00:22:36
head because he says that when he
00:22:38
confronted her about the wage
00:22:40
garnishment and asked how they were
00:22:42
going to afford Sierra's beauty school,
00:22:44
Melissa told him that she had gotten a
00:22:45
lawyer and that they had an upcoming
00:22:48
court date to appeal a lawsuit judgment.
00:22:50
But now, he just found out apparently
00:22:53
that wasn't true. There was no ongoing
00:22:56
appeal. And in all her paperwork, he'd
00:22:59
also discovered that she had applied for
00:23:01
a personal loan to cover Sierra's
00:23:02
tuition and been rejected. And based on
00:23:06
the dates of things, it looks like she
00:23:08
had just gotten that rejection days
00:23:11
before she disappeared. Now, on top of
00:23:13
that, Mark tells everyone that things
00:23:16
weren't going well for Melissa
00:23:18
professionally. Besides the clearance
00:23:20
issue, she had also been flagged for
00:23:22
performance problems at work. So,
00:23:25
Mark's theory, the one that he's telling
00:23:27
everyone,
00:23:29
is that the pressure must have finally
00:23:31
just reached a boiling point and Melissa
00:23:33
bolted before it all came crashing down.
00:23:36
But, but, he also predicts that she's
00:23:38
going to be home before the weekend is
00:23:39
over because she has an important work
00:23:42
meeting on Monday.
00:23:44
Or, you know what? He floats another
00:23:46
idea. Maybe Melissa loved Sierra so much
00:23:49
that she left on purpose so that Mark
00:23:50
could declare her dead in a few months
00:23:52
and then collect her life insurance and
00:23:54
like set Sierra up financially. What?
00:23:58
>> Or, maybe she's just hiding out at her
00:24:01
best friend's house. Someone should
00:24:03
probably check there. So, his theory is
00:24:05
what? Everything? Everything but foul
00:24:08
play, it seems. Where is he saying he
00:24:10
thinks she actually is though? Like, the
00:24:13
most likely place? I don't think anyone
00:24:15
gets like a clear answer about that.
00:24:17
That's the thing. To the Mondragons, the
00:24:19
whole thing sounds less like a husband
00:24:21
trying to find his wife and more like
00:24:23
somebody trying to rapidly workshop
00:24:26
explanations. On top of that, while he's
00:24:28
coming up with all of the ways that she
00:24:30
could have just walked off on her own,
00:24:32
he finds time to criticize their search
00:24:35
efforts, saying that they're looking in
00:24:36
the wrong places, places Melissa
00:24:38
wouldn't go because she didn't know them
00:24:40
well. And he keeps bringing up his
00:24:42
confirmed alibi, even though nobody is
00:24:45
asking him about it. So, being the crime
00:24:49
junkies that the Mondragons are,
00:24:52
they start recording their interactions
00:24:55
with Mark in the one-party consent state
00:24:58
of New Mexico.
00:24:59
Starting with a call that Trudy made to
00:25:01
check on Sierra the next day, Sunday.
00:25:04
And she shared that recording
00:25:06
>> [music]
00:25:06
>> with us. I'm going to play you a snippet
00:25:09
of that call.
00:25:13
In the parks and forests you love, there
00:25:15
are stories waiting to be told. I'm
00:25:17
Dilia D'Ambra, the host of Park
00:25:19
Predators, [music]
00:25:20
a true crime podcast that reminds you
00:25:22
sometimes the most beautiful places hide
00:25:25
the darkest secrets. Listen now wherever
00:25:27
you get your podcasts.
00:25:30
We know exactly what's going on, but I'm
00:25:32
not telling no one [ __ ] Okay. Well, as
00:25:34
long as you're sharing that with the
00:25:35
police, that's amazing. Well, you know
00:25:38
what I told the cops today I that we
00:25:39
have information. They're not even
00:25:41
calling me. I I sat there and knocked on
00:25:43
their door yesterday, would not answer
00:25:44
the thing, and I finally told the
00:25:45
detective, "If you're going to go over
00:25:47
there," I said, "I have a lot of
00:25:48
information, but if I'm going to go over
00:25:50
there and you're going to start
00:25:51
interrogating me again, I'm not going."
00:25:53
Well, we need to be concentrating on We
00:25:57
need to be concentrating on finding her.
00:25:59
What's that? We need to find her.
00:26:01
>> there, Trudy. You understand? NO, NO,
00:26:03
NO. I'M saying No, what I'm saying is
00:26:06
it doesn't help if you're locked up at
00:26:08
the police station. You need You need to
00:26:10
be out there
00:26:12
Well, you need to be out there doing I
00:26:14
went over there. I didn't know. You guys
00:26:16
never told me that this was going on
00:26:17
that this legal search was going on
00:26:19
yesterday. I'm like, "What the [ __ ] is
00:26:22
going on over here?" I never knew about
00:26:23
that. You I never knew about any of
00:26:25
that. No one's telling me what you guys
00:26:27
are doing. I could be directing and
00:26:28
saying, "No, focus on this area. Focus
00:26:30
like I did the other day." You're
00:26:32
telling people all over that don't make
00:26:33
no sense. Well, we're
00:26:35
We are very open for you to share with
00:26:38
us what you what you want, what you're
00:26:40
willing to. Because, you know what? We
00:26:43
awesome.
00:26:46
I I understand that that that they that
00:26:49
they said there was some sort of a drop
00:26:51
of blood in here. [ __ ] there's no
00:26:52
blood in here. And besides, like I told
00:26:54
you
00:26:55
the time frame does not match. The only
00:26:58
time she could have been hurt by me
00:27:00
because I was identified in Los Alamos
00:27:03
No, you were at work. Mark
00:27:05
>> Mark, watch Trudy. Let me say something
00:27:06
so maybe you'll understand this. It's so
00:27:09
simple. If there was a drop of blood and
00:27:12
there was blood in this house, that
00:27:13
means I would have had to have hurt
00:27:14
Melissa before we left to work, right?
00:27:17
Correct? No. That's why they let me out
00:27:20
of over there when they had me over
00:27:21
there. Up I was up in Los Alamos.
00:27:24
Obviously, they determined everything
00:27:26
was in the time
00:27:27
>> I know you were at work.
00:27:29
Melissa was fine at 1:00 in the
00:27:32
afternoon in Los Alamos.
00:27:33
>> You were at work.
00:27:35
No, no. I know that. They said I had a
00:27:37
gallon of blood on the floor and it's
00:27:40
irrelevant to Melissa.
00:27:42
>> Right. No, and it makes sense.
00:27:43
>> This call goes on for a little while
00:27:46
longer. No matter how upset Mark gets,
00:27:49
Trudy [music] tries to keep calm. And
00:27:51
she, you know, she's not being
00:27:52
confrontational at all. She is in
00:27:54
information gathering mode. She wants to
00:27:57
keep him talking. And that's when he
00:27:59
says something that catches her really
00:28:01
off guard. Honestly, one of her biggest
00:28:03
takeaways is this.
00:28:05
>> And then so I changed the locks to all
00:28:06
the doors so she would have to she
00:28:08
cannot come in with the key and grab her
00:28:09
stuff and bail. She would have to
00:28:11
contact Sierra to open up the thing. We
00:28:14
put cameras up and everything to to see
00:28:15
if she was coming in.
00:28:17
>> Okay. And you know what? That's a good
00:28:18
idea. The cameras. He changed the locks
00:28:24
3 days after she vanished.
00:28:25
>> Yeah.
00:28:26
Which like, why would he even need to do
00:28:29
that if she left her keys behind?
00:28:30
>> Dude, that's the thing. Like, I don't
00:28:32
think he ever explains that. I'm like,
00:28:33
she left her keys. She couldn't get in
00:28:34
anyway.
00:28:35
>> I know.
00:28:36
>> Also, I I still don't get where she
00:28:38
would go. Like, she didn't take her
00:28:39
phone. It sounds like she couldn't have
00:28:41
taken any money. She's got nothing with
00:28:44
her.
00:28:45
>> not nothing. Remember, she Well,
00:28:46
according to Mark and Sierra, she's
00:28:48
missing from the house is what her
00:28:49
toothbrush, her reading glasses, her
00:28:51
sunglasses, and then that 90-day supply
00:28:53
of her thyroid medication.
00:28:54
>> Even that is like a little weird though,
00:28:56
right? Like that's not exactly like a
00:28:58
disappearing packing list. Well, the
00:29:01
Mondragons say that from the start they
00:29:03
think that Mark was trying to plant the
00:29:05
idea that someone came to get Melissa
00:29:09
pointing to those unfamiliar tire tracks
00:29:11
in the driveway. Remember as evidence
00:29:12
that another man had picked her up. But
00:29:15
the thing is like he doesn't say who
00:29:17
that would be though. I mean is he
00:29:18
implying that she like left him for
00:29:21
another man?
00:29:23
>> It's hard to tell what he's saying
00:29:25
because Mark has offered a lot of
00:29:27
theories over the months about where she
00:29:30
might have gone. Florida, Arizona,
00:29:31
Washington, maybe she left with the help
00:29:33
from a contractor that she was having an
00:29:35
affair with.
00:29:36
>> Wait, she was having an affair? No,
00:29:37
that's the thing not that anyone knows
00:29:39
of. I think he's just guessing. Says,
00:29:41
you know, it could have been a
00:29:41
contractor or maybe a hunter she knew or
00:29:43
a photographer from Colorado. Sometimes
00:29:45
he insinuates to the family that he
00:29:47
knows exactly where she is or who she's
00:29:49
with, but he won't give names which
00:29:52
feels so weird to them and weird to me.
00:29:55
Even the theory that she would leave him
00:29:58
for another man in general though, I
00:30:00
can't really get my head around from his
00:30:02
telling. Because in his first interview
00:30:04
he told detectives that their marriage
00:30:06
was great. There was nothing wrong
00:30:08
there. But that's not what police heard
00:30:11
from other people. Some of whom
00:30:13
described Mark as egotistical and
00:30:16
controlling. A man who allegedly
00:30:18
emotionally and financially abused
00:30:20
Melissa. And people have different
00:30:21
understandings of Mark and Melissa's
00:30:23
finances. Some say that she was burdened
00:30:26
with paying for everything even though
00:30:28
Mark made more money. So sure, she might
00:30:30
have been in debt, but like in their
00:30:32
eyes that's really Mark's fault. And
00:30:35
yeah, there were lawsuits and stuff, but
00:30:37
records show that the majority of those
00:30:39
were against Mark alone. Some people
00:30:41
even say that the couple had talked
00:30:43
about splitting up after Sierra
00:30:46
graduated. And Mark had basically said
00:30:48
that everything was his, so Melissa
00:30:50
should be ready to just move out. So,
00:30:53
when Melissa was talking about her plans
00:30:55
to stay in Albuquerque with Sierra,
00:30:58
it sounded to them more like a marital
00:31:00
separation than than just like this mom
00:31:03
helping her daughter get settled, which
00:31:04
is what Mark was saying.
00:31:05
>> And Sierra had just graduated, right?
00:31:07
>> Like like nearly a month before this.
00:31:09
So, the timing is interesting,
00:31:12
which police obviously confront him
00:31:15
with. Now, initially, he tells them none
00:31:17
of this is true. And he told us the same
00:31:19
thing. Though he acknowledges that
00:31:21
Melissa had told people that stuff. But
00:31:25
according to Agent Mata, Mark ultimately
00:31:28
confirmed it to police, admitted that he
00:31:31
had encouraged Melissa to leave if she
00:31:33
wasn't happy. I mean, so
00:31:36
maybe this is why he seems so confident
00:31:39
in this walking away theory? Like he
00:31:41
told her to go.
00:31:43
>> Maybe, but then why won't he tell people
00:31:44
who he thinks she's with if he thinks
00:31:46
that he even has like a sliver of an
00:31:48
idea? I mean, here's one of like the
00:31:50
stranger parts of this story. Mark
00:31:52
starts putting up these mysterious posts
00:31:54
on social media. Coded language he says
00:31:57
that only Melissa could understand. A
00:32:00
way to let her know that he's tracking
00:32:02
her. Tracking her how? Or to where? I
00:32:06
don't know. He is not an easy guy to get
00:32:10
a straight answer from. Well, I'm like
00:32:12
thinking back, is he talking about like
00:32:14
a hunting tracking? Like he's like
00:32:16
on to her trail somehow? That, yes. And
00:32:18
listen, some of her trail that day has
00:32:21
already been confirmed by police. The
00:32:24
Cassias' home didn't have surveillance
00:32:25
cameras or anything like that, but there
00:32:27
were some outside the shopping plaza
00:32:29
where Sierra worked. And there is
00:32:31
footage of Melissa alone, seemingly
00:32:34
fine, going to drop off lunch for her
00:32:36
daughter. At 12:56 p.m., Melissa's white
00:32:39
sedan comes in hot to a handicap parking
00:32:42
spot. Like she bumps into that I don't
00:32:45
know what I want to call it a guardrail,
00:32:46
but you Like a parking stop.
00:32:47
>> Yeah, like and it's so hard that the
00:32:48
whole car kind of shakes. So, she like
00:32:50
backs up a little bit. And then like 10
00:32:52
seconds later, she gets out of the car
00:32:54
and calmly starts walking down the
00:32:56
sidewalk with a sandwich for Sierra in
00:32:58
one hand.
00:32:59
Then another camera picks her up in the
00:33:01
plaza. We get a better look at her.
00:33:03
She's in that turquoise T-shirt with a
00:33:05
sweatshirt or something like that tied
00:33:06
around her waist and jeans. And then a
00:33:08
minute later, she is back on that same
00:33:10
camera walking back to her car. No
00:33:12
sandwich anymore, but she's holding a
00:33:13
piece of paper in her hand, that check
00:33:16
that Sierra asked her to cash for her.
00:33:18
Now, the parking lot camera picks her
00:33:20
back up getting into her car. But the
00:33:22
video cuts off before we actually see
00:33:25
her pulling away.
00:33:27
So,
00:33:28
I don't know what direction she went in,
00:33:30
but she had to have made it home after
00:33:32
this since her car, her keys, her
00:33:34
wallet, everything was
00:33:35
back there at the house, right?
00:33:37
>> But I don't think Mark believes anything
00:33:40
happened to Melissa there, like at the
00:33:42
house. His searches seem to be more
00:33:45
focused in the spot along Highway 518
00:33:49
where Lloyd spotted Melissa. Wait, I
00:33:52
thought he was adamant that that could
00:33:54
not have been Melissa. Okay. So,
00:33:57
Mark told us that when that lead came in
00:34:01
that first night when police were there,
00:34:02
he was totally unaware that the tipster
00:34:06
was someone who actually knew Melissa.
00:34:09
So, that's like he dismissed it because
00:34:11
like he didn't want investigators going
00:34:13
on this like wild goose chase. Again, I
00:34:15
still think the reason he dismissed it
00:34:16
doesn't make sense, but whatever. But
00:34:18
then he says at some point over the
00:34:20
first couple of days, he learned that
00:34:22
Lloyd was the caller. And so I guess by
00:34:24
Tuesday, July 1st, enough time had
00:34:26
passed that he's at least willing to
00:34:28
entertain the idea that maybe it could
00:34:30
have been. So, he drives out to that
00:34:33
stretch of highway looking for circling
00:34:36
birds, which is like a potential sign of
00:34:38
human remains.
00:34:39
>> Right, but that means he's now on board
00:34:41
with a foul play theory. No.
00:34:44
>> [laughter]
00:34:45
>> I know. Mark told our reporter Nina that
00:34:47
he never thought Melissa met with foul
00:34:50
play.
00:34:51
But, if Lloyd's tip is true and if
00:34:55
Melissa had been injured or abducted,
00:34:57
she wouldn't have made it far from that
00:34:59
spot. Like it's summer, it's hot,
00:35:01
remains attract scavenging birds. So,
00:35:03
that's why he looked there on that
00:35:05
Tuesday morning. Like, you know, in an
00:35:07
absence of knowing what happened, maybe
00:35:09
everything's possible even if it's not
00:35:10
what he believed. Now, he told us that
00:35:13
when he went out that way, he happened
00:35:15
to see Lloyd outside in his yard. And
00:35:18
so, he decided to stop by and speak with
00:35:20
him. Now, police still haven't reached
00:35:21
out to Lloyd at that point, by the way.
00:35:23
This is 5 days after Melissa was last
00:35:25
seen. And when Lloyd lays out what he
00:35:28
actually saw for Mark, this is when
00:35:30
something shifts for Mark. Because Lloyd
00:35:32
says that he never described Melissa as
00:35:34
stumbling or staggering when he spoke
00:35:36
[music] to her brother. He tells Mark
00:35:38
that Melissa was just there 1 minute,
00:35:41
gone the next.
00:35:43
And Lloyd didn't actually see her get
00:35:44
into that blue truck that he saw or
00:35:45
anything like that. But like, that is
00:35:47
kind of the implication that he's
00:35:48
making.
00:35:49
>> Wait. So, does Mark think this was
00:35:52
Melissa or not?
00:35:54
>> Well, now he seems more convinced that
00:35:57
that was her. And if she wasn't injured
00:36:00
or acting odd, it actually plays into
00:36:03
his theory that she wasn't in distress.
00:36:05
She just like left. And what do the
00:36:07
Mondragons think? They've always felt
00:36:09
like this could have been her stumbling
00:36:12
or not. But even if she wasn't
00:36:14
stumbling, the Mondragons still believe
00:36:17
that she could have been in danger when
00:36:18
she was out there. They think everything
00:36:20
about this is screaming foul play. They
00:36:23
don't believe for a second that she left
00:36:25
willingly. Every theory that Mark has
00:36:27
about her walking away is just that, a
00:36:29
theory and a constantly changing one at
00:36:32
that with no proof. So, after this
00:36:35
search when Mark comes to them again and
00:36:36
he's like, "I found something that makes
00:36:38
me even more positive that she left on
00:36:40
her own."
00:36:41
I imagine that they're pretty skeptical.
00:36:44
But this time it's not just stories or
00:36:47
his word. This time Mark has proof.
00:36:52
Armed with information from Lloyd about
00:36:54
exactly where he last saw Melissa and
00:36:56
the blue truck, Mark had taken Sierra
00:36:59
out to retrace Lloyd's steps. And in
00:37:01
essence, he's trying to retrace
00:37:03
Melissa's. Not with old school hunting
00:37:05
tactics, he was looking for any house
00:37:08
with a surveillance camera pointed at
00:37:10
the road. And dude hit paydirt. He finds
00:37:13
a video from a house off of Highway 518
00:37:17
that you have to see to believe. The
00:37:20
timestamp is 2:18 p.m. on June 26th when
00:37:24
Melissa, alive and well, not stumbling,
00:37:27
comes onto frame. She's alone and
00:37:29
walking at a brisk pace. Not as if she's
00:37:31
scared or anything, just purposefully.
00:37:33
She's wearing what looks to me like the
00:37:35
same outfit we saw her in when she
00:37:36
dropped lunch off to Sierra. But now her
00:37:38
hair is pulled back and she's carrying a
00:37:41
small backpack on her shoulders.
00:37:44
For the Casillas side, this video is
00:37:46
proof that Melissa walked away on her
00:37:49
own two feet by choice.
00:37:52
And Mark told us he wasn't thinking
00:37:53
about vindication or exonerating himself
00:37:56
at that moment, but it's hard to ignore
00:37:58
what this video means. That there might
00:38:01
be a whole 'nother side to this story. A
00:38:05
completely different narrative about how
00:38:08
and why Melissa went missing
00:38:11
that will have you questioning
00:38:13
everything.
00:38:20
Melissa Casillas part two, take two, ABC
00:38:24
marker.
00:38:25
Just when everyone was beginning to
00:38:28
believe that something happened to
00:38:29
Melissa in her home, even, video footage
00:38:32
emerged that proved Melissa was out of
00:38:35
her house and walking down Highway 518
00:38:39
alive and well. Something her husband,
00:38:42
Mark Cassias, has been saying since
00:38:44
early on. And his version of events
00:38:47
reads like a completely different book.
00:38:50
Not a shady, callous husband who had his
00:38:52
wife killed, but a frustrated one who
00:38:55
says that his wife abandoned him and
00:38:57
their daughter, leaving behind not so
00:38:59
much as a note or explanation. [music]
00:39:02
Even then, though, Mark says that some
00:39:04
of the allegations against him aren't
00:39:06
just misinterpreted, they're downright
00:39:08
wrong. So, let's go back to that first
00:39:10
night when police were there and the
00:39:12
Mondragons showed up and told us that
00:39:15
Mark was hostile and bad-mouthing
00:39:16
Melissa. Mark told us that never
00:39:19
happened. He says that he didn't speak
00:39:21
with them at all that night. [music] He
00:39:23
was completely focused on dealing with
00:39:25
police. Then there's that argument that
00:39:27
we're told he and Melissa had that
00:39:28
morning about the e-cigarette, right? He
00:39:30
like caught her vaping.
00:39:31
>> Mhm. It takes him a few interviews to
00:39:33
come clean about any relationship issues
00:39:35
to police, but he says that he only
00:39:37
withheld that information because he
00:39:39
wanted them focused on finding Melissa,
00:39:41
not eyeballing him. He also says that
00:39:44
this like fight or argument wasn't some
00:39:45
big blow-up, just this like minor like
00:39:48
marital spat. And he denies that Melissa
00:39:51
ever cursed at him or told him to find
00:39:53
his own ride home.
00:39:54
>> Well, didn't that come from him in the
00:39:55
first place?
00:39:56
>> Well, that's what the Mondragons say,
00:39:57
that he told them that. But, when we
00:40:00
talked to him, he said, "No, that's not
00:40:02
true. He never said anything like that."
00:40:04
We also asked him about an early theory
00:40:06
he apparently mentioned, the one that
00:40:08
really rubbed some people the wrong way,
00:40:10
right? About Melissa making herself
00:40:12
disappear so that he could declare her
00:40:13
dead and then get the life insurance
00:40:15
money for Sierra. Now, Mark, to us never
00:40:17
really confirmed or denied whether or
00:40:20
not he said that, but what he did tell
00:40:22
us is that he knows a person has to be
00:40:24
[music] missing for years before any of
00:40:26
that becomes legally relevant anyway.
00:40:28
And actually, police come to learn that
00:40:30
Melissa didn't even have a life
00:40:32
insurance policy anymore. I mean, she
00:40:34
used to, but that policy expired years
00:40:38
ago. Though, I'm not really sure if Mark
00:40:40
knew that. And Melissa's financial
00:40:42
records showed just how bad things had
00:40:45
gotten. Investigators find out that she
00:40:47
had negative account balances that
00:40:49
swallowed up half her paycheck the
00:40:50
second they hit and maxed out credit
00:40:53
cards that she hadn't made payments on
00:40:55
in months. And let's talk about the
00:40:57
physical evidence, like the muddy boots,
00:41:00
right? Mark says that he had recently
00:41:02
asked Melissa to refill the fish tank,
00:41:04
which was right above where the boots
00:41:06
were sitting. And so, he thinks that
00:41:07
maybe she might have spilled [music]
00:41:08
water and re-wetted like old dried mud
00:41:12
that was already on them from like a
00:41:13
previous hunt. Which investigators think
00:41:15
is plausible.
00:41:17
>> And the boots mattered like a lot less
00:41:19
once his alibi was confirmed though,
00:41:20
right?
00:41:21
>> Yeah, and like the same logic I think
00:41:23
then extends to the blood if it's even
00:41:26
human blood.
00:41:28
We actually still don't know that for
00:41:30
sure because what we know is they did
00:41:32
that presumptive test. It is blood.
00:41:34
Police still didn't have the lab results
00:41:37
back when we last spoke to them. But
00:41:39
Mark is saying, "Listen, that could have
00:41:41
come from processing game or even from
00:41:43
their dog." But either way, it's hard to
00:41:45
make it mean much when we now know, to
00:41:48
your point, Melissa was clearly alive
00:41:50
and walking on her own after she left
00:41:53
the house.
00:41:53
>> Well, and even if it does come back as
00:41:55
her blood, like she lived there. And
00:41:59
there's that, right? It's not like it's
00:42:00
like this pool or anything.
00:42:01
>> Right. So, blood and boots, put those
00:42:04
aside.
00:42:05
>> Mhm.
00:42:05
There's also the tech of it all.
00:42:08
Investigators find out that Melissa
00:42:09
emailed a coworker the morning of the
00:42:11
26th saying that she was going to be
00:42:12
late because something had come up with
00:42:15
her daughter Sierra. That wasn't true.
00:42:17
So, it seems like Melissa was telling
00:42:20
[music] everyone a different story so
00:42:22
that she could make herself free that
00:42:24
day.
00:42:25
>> Mhm. Mark, TBD exactly what she said to
00:42:27
him in the car on the drive there, but
00:42:29
like he seemed to think that she was
00:42:31
going to be at work.
00:42:31
>> Mhm. She told Sierra that she'd come
00:42:33
home because she forgot her badge, which
00:42:35
she had with her, we know. But, she told
00:42:38
her job something was up with her
00:42:39
daughter. And then, what they pull from
00:42:41
her phones, this is the detail more than
00:42:45
anything else that makes me think
00:42:47
Melissa had some kind of plan. Cuz
00:42:50
forensic downloads show that both of her
00:42:53
phones, they weren't wiped clean at the
00:42:56
same time. The older phone that she had,
00:42:59
the one that she'd already replaced,
00:43:00
that was factory reset at 8:02 a.m.
00:43:04
And then, her newer phone was wiped at
00:43:07
1:38 p.m. I obsessed over this because
00:43:12
my gut tells me that if someone else
00:43:14
wiped the phones, I would think that
00:43:16
they would have wiped them both at the
00:43:18
same time, right? I mean,
00:43:21
unless they didn't know that she had two
00:43:23
phones. Like, wiped one thinking it was
00:43:25
the phone, realized their mistake, and
00:43:27
had to come back and wipe the second
00:43:28
one.
00:43:29
>> we know that Melissa must have reset
00:43:30
that first phone at home, right? Because
00:43:32
remember, she's there when Sierra woke
00:43:33
up at around 7:45, right? So, the one
00:43:36
that she doesn't use, like in my mind,
00:43:38
the one she doesn't use or she's not
00:43:39
going to need that day gets reset in the
00:43:41
morning.
00:43:41
>> Mhm. Just get it over with. Then, she
00:43:43
has her phone through the day as she's
00:43:44
like bringing Sierra lunch, right? You
00:43:46
can't even say someone else has her
00:43:47
phone is like sending these messages. We
00:43:48
have her on video bringing Sierra lunch
00:43:51
at 1:00. Then, Melissa sent her daughter
00:43:53
that last text message at 1:33.
00:43:56
And I mapped everything. Like, all of
00:43:59
that lines up to where if Melissa is at
00:44:01
home when that reset happens at 1:38,
00:44:05
then she could have very realistically
00:44:08
left then and then been at the spot she
00:44:10
is seen at on Highway 518 on camera at
00:44:14
2:18. That's all the things that make me
00:44:16
believe like it had to be her who reset
00:44:18
them. But
00:44:20
why did she reset them? This is the
00:44:23
thing. I don't know.
00:44:26
I mean there
00:44:27
I mean I I I feel like there's two
00:44:28
scenarios, right? Like if if she reset
00:44:30
them, two scenarios. And like in those
00:44:31
scenarios, it's her walking away, right?
00:44:33
Like so one, she took her own life, in
00:44:37
which case I don't know why you would
00:44:39
have to wipe all of your devices.
00:44:40
>> I mean, unless you were hiding stuff you
00:44:42
didn't want anyone to ever find out
00:44:45
about.
00:44:45
>> when you leave a note for that? Like it
00:44:47
to me this is like if you're if if
00:44:48
you're so overwhelmed by like your
00:44:50
marriage or your financial situation or
00:44:52
whatever, like why do you have to like
00:44:54
why would you leave this mystery behind?
00:44:55
Like so it to me this doesn't make a ton
00:44:57
of sense. So the second option is she
00:44:59
walked away to start over, to live
00:45:02
somewhere else, be with someone else,
00:45:05
whatever that looks like. And in that
00:45:07
scenario, maybe something on those
00:45:10
phones would have told people exactly
00:45:12
where she was going or like given away a
00:45:14
plan that she didn't want found out. And
00:45:17
have police pulled her iCloud data? Oh,
00:45:20
this is where it goes like a layer
00:45:22
deeper. They tried. Okay. She didn't
00:45:25
just wipe her phones. Apple told them
00:45:28
>> [music]
00:45:28
>> that her backup had been completely
00:45:31
scrubbed, too. Like her iCloud with
00:45:33
nothing left to recover.
00:45:36
I didn't even realize that was possible.
00:45:39
Is that actually possible? Agent Ezekiel
00:45:41
Esquivel Mata says that that level of
00:45:43
digital erasure takes intention. Like
00:45:46
it's more than just hitting a few
00:45:47
buttons on an iPhone.
00:45:48
>> Yeah. So, he does think though that like
00:45:51
Melissa would know how to do it or I
00:45:54
assume at a minimum could Google it.
00:45:56
This is not like an impossible thing to
00:45:57
do. It's like supposed to be your data.
00:45:59
You should be able to erase it.
00:46:01
>> Right. So, is everyone pretty much in
00:46:03
agreement that Melissa is the one that
00:46:06
wiped everything?
00:46:07
>> Not necessarily. No, like the Mondragons
00:46:09
really wanted investigators to geofence
00:46:12
the Cacias' home to see if maybe other
00:46:14
devices connected, like either to her
00:46:16
device or the internet or whatever
00:46:18
Google around that time. But, Google
00:46:21
actually stopped providing that data to
00:46:22
law enforcement in 2024. But, they're
00:46:25
really adamant they don't think that
00:46:27
Melissa would have done this. They say
00:46:28
that she was very sentimental, like
00:46:31
person who held on to every photo and
00:46:33
every memory. And so, they can't imagine
00:46:35
a world where she would decide to erase
00:46:38
all of that. And really, that
00:46:41
disagreement over what Melissa would or
00:46:44
wouldn't do, over who she really was, I
00:46:48
think that's really at the heart of
00:46:50
everything. Because the tension between
00:46:52
the two sides in this case goes way
00:46:55
beyond the investigation. [music]
00:46:56
Mark and his daughters say that the
00:46:58
Mondragons spent years shunning Melissa
00:47:00
over her separation from the Jehovah's
00:47:02
Witness faith. That they barely knew
00:47:04
Sierra, didn't even meet her until she
00:47:06
was a few years old. And they claim that
00:47:09
they are only now presenting themselves
00:47:10
as people who were like central to her
00:47:13
life. But, we asked the Mondragons about
00:47:15
this and they totally deny that. They
00:47:17
say that Melissa was very present in
00:47:19
their lives. There's regular calls,
00:47:20
overnight visits, helping with medical
00:47:22
appointments. Like, Melissa had taken
00:47:24
time off work to take her mom to the
00:47:26
hospital for a knee replacement and then
00:47:28
she was going to take care of her after
00:47:29
that. That appointment was scheduled for
00:47:32
June 30th, four days after she vanished.
00:47:36
But, whatever the truth is about those
00:47:39
relationships before June 26th, the
00:47:42
aftermath made everything worse. Mark
00:47:44
and his daughters say that the extended
00:47:46
family cut them out of the search
00:47:48
entirely, withholding incoming tips,
00:47:50
blocking them from the Find Melissa
00:47:52
Facebook page, and launching a GoFundMe
00:47:55
without ever consulting them. Now, the
00:47:57
Mondragons say that donations will fund
00:47:59
a reward for information leading to
00:48:00
Melissa's safe return, but Sierra feels
00:48:03
like they exploited the tragedy,
00:48:05
basically. The Casillas side also says
00:48:07
that the Mondragons fueled rumors that
00:48:09
Mark was abusive and directly involved
00:48:11
in Melissa's disappearance. Both things
00:48:13
that he and his daughters vehemently
00:48:15
deny.
00:48:17
Then there are the search efforts
00:48:18
themselves, which the Casillas side
00:48:20
thinks the Mondragons wasted critical
00:48:22
resources on, directing people to places
00:48:24
Melissa would never go, they say. And
00:48:27
they blame her brother for bungling that
00:48:30
whole Lloyd tip early on. I mean, the
00:48:32
whole stumbling, staggering description,
00:48:34
Agent Mata says that was the reason
00:48:37
investigators didn't follow up, not a
00:48:39
contributing factor, the deciding
00:48:43
factor. And more than that, according to
00:48:45
Mark, Lloyd told him that the blue truck
00:48:48
that he saw was a newer model, not an
00:48:50
older one like the family had originally
00:48:52
relayed. So, like Mark, Agent Mata
00:48:54
blames a chain of bad details that cost
00:48:56
them days.
00:48:57
>> But let's be real here, it was still
00:48:59
Mark who told police not to check it out
00:49:01
in the first place. And like
00:49:03
>> Yeah. since when does the missing
00:49:05
person's spouse call the shots during an
00:49:07
investigation? Like the responsibility's
00:49:09
on the police here. I completely agree
00:49:11
with that. And remember, they didn't
00:49:12
interview Lloyd until after Mark talked
00:49:15
to him. And I also have to say like a
00:49:17
huge part of why I think there is such a
00:49:19
great divide between families
00:49:22
is that the investigation has not felt
00:49:24
robust. Like it leaves each family
00:49:27
feeling like enough isn't being done,
00:49:29
which leaves so much room for suspicion
00:49:33
and speculation. Like forget the Lloyd
00:49:35
of it all, right? Like you took Mark's
00:49:36
word, you didn't talk to Lloyd until
00:49:38
like after Mark did, days later, fine.
00:49:41
There was this other tip that came in,
00:49:45
and I was
00:49:46
shocked at how it was handled.
00:49:50
So, a couple of days after Melissa
00:49:52
disappeared, this tourist was near a
00:49:55
church in Taos, New Mexico, when she
00:49:58
noticed a man on horseback who appeared
00:50:00
to be praying. It was an interesting
00:50:02
sight, so she decided to take a photo of
00:50:05
him.
00:50:06
But then she noticed that he seemed to
00:50:07
be crying and apparently was
00:50:10
intoxicated. So, she approached him and
00:50:12
asked if he was okay, and he told her
00:50:14
that they had been searching for his
00:50:16
missing cousin up in the mountains
00:50:18
[music] and that he'd found her body
00:50:20
decapitated. Now,
00:50:22
I don't know if he gave a name for this
00:50:25
so-called cousin before he rode off, and
00:50:27
that tourist didn't know what to make of
00:50:30
that interaction. She like didn't have
00:50:32
any context. But later that night, she
00:50:34
saw a missing person poster for Melissa,
00:50:37
and I guess she put two and two
00:50:38
together, so she reported the encounter
00:50:40
to police and gave them a copy of the
00:50:43
photo that she had taken.
00:50:45
Investigators showed them to Melissa's
00:50:47
family, and they weren't related to the
00:50:50
man, but they did know him. Her brother
00:50:54
recognized the guy as 64-year-old Rick
00:50:57
Valerio, known as Wild. He works with
00:51:00
horses near a local golf course.
00:51:03
And guess what he drives?
00:51:05
A blue Dodge truck. Agent Mata went to
00:51:09
speak with Rick on Monday, July 21st.
00:51:13
>> When did they know about this tip? So,
00:51:14
that part's unclear. The family seems to
00:51:17
think that it was right away, but Mata
00:51:20
insinuates that it was later, which is
00:51:22
why they're not talking to him for like
00:51:24
a month. But I don't want to get hung up
00:51:26
on the police response time, because I
00:51:28
think the proper thing to get hung up on
00:51:31
is the interview itself. Because
00:51:32
according to police, once they talked to
00:51:34
Rick, he admitted that he helped with
00:51:36
search efforts, but he denied everything
00:51:38
else. So, they just dismissed the lead.
00:51:40
They think Rick concocted the story for
00:51:42
attention.
00:51:43
So, the Mondragons actually got the body
00:51:46
cam footage of this interview that makes
00:51:49
them like rule him out. And be prepared
00:51:52
to scream.
00:51:58
I'm going to play you the entire
00:52:00
interaction between Agent Mata and Rick
00:52:03
Valerio so you can make your own
00:52:05
determinations about the questions asked
00:52:08
and the answers Rick gave and the
00:52:10
conclusion that those led police to.
00:52:14
It's still daylight when Agent Mata
00:52:16
pulls up to Rick's home and calls out to
00:52:18
him. Valerio, state police.
00:52:21
Mata won't ever enter Rick's home and
00:52:23
Rick never fully comes outside. As far
00:52:25
as we know, the whole interaction takes
00:52:27
place with Rick fully or partially
00:52:29
behind his metal gate door.
00:52:31
>> Richard home? Yeah, I'm Richard. Hey
00:52:33
Richard, how you doing bro? I'm Agent
00:52:34
Mata, we're state police, bro. Uh You're
00:52:36
not in any trouble, bro. I'm here just
00:52:38
doing some follow-up with you.
00:52:40
No. Yeah, we we heard, bro, that uh you
00:52:42
were talking about finding a decapitated
00:52:44
body out in the Monte, bro.
00:52:46
Or what?
00:52:47
That you found a uh decapitated body
00:52:49
without its head there in the Monte. No,
00:52:51
no, I didn't.
00:52:53
Are you sure?
00:52:53
>> I'm sure.
00:52:55
Cuz I tracked it down to you, bro. The
00:52:56
people that heard it took a picture of
00:52:58
you on a horse there in the plaza.
00:53:00
You're cruising around on your on your
00:53:01
caballo on rojo. Yeah, but I'm going to
00:53:04
plaza.
00:53:06
Yeah, here right here in the church,
00:53:07
bro. Yeah. No, I don't think I know.
00:53:10
I was I was helping with our search here
00:53:12
over here. Yeah.
00:53:15
When uh
00:53:15
you were there, I guess, you know.
00:53:17
Uh one of one of the days over here in
00:53:19
the search and rescue. Yeah. A couple of
00:53:22
weeks ago. Yeah. I was helping with them
00:53:24
there. Yeah, but you didn't find anybody
00:53:26
without their head, bro, cuz that's what
00:53:27
I'm hear- hearing and that's why I'm
00:53:29
here No. to see what's going on with
00:53:30
that, bro. No, no, I don't. Are you
00:53:33
sure?
00:53:33
>> I'm sure, bro. Yeah, cuz I wouldn't be
00:53:35
bugging, bro, if the information didn't
00:53:36
sound pretty serious. That's why I'm
00:53:37
here wanting to hear it from you. Mata,
00:53:41
but I'm Agent Mata, Mr. Richard.
00:53:43
Nothing. Uh what what would I hear that
00:53:45
then? I don't know, bro.
00:53:48
And and and this is what I heard, bro,
00:53:50
that you're you're cousin to Melissa and
00:53:51
that she's been missing for a few days.
00:53:53
And and that you were up in the Monte
00:53:55
and that you were all sad because you
00:53:57
you found her you found a a dead body
00:54:00
without its head and that the head was
00:54:01
just tossed there to the side, bro.
00:54:03
>> I don't even know her. You don't know
00:54:04
her? You were just helping with the
00:54:06
search. Well, yeah, I work I work for
00:54:08
the state guys over here.
00:54:09
>> Yeah.
00:54:10
No, I don't even know her.
00:54:12
I'm not even related to her, nothing.
00:54:14
Okay. Uh do you remember what you were
00:54:15
doing on the 26th of last month, bro?
00:54:18
That's a Thursday.
00:54:21
I think I was in Albuquerque, actually.
00:54:23
You're in Albuquerque and that blue
00:54:25
Dodge is is yours? Yeah. Okay. So, you
00:54:27
didn't go picking up no girls or
00:54:29
anything down there on 518, bro? Nada.
00:54:31
Nada. Okay.
00:54:33
No, I swear. No, no, you're good. I'm
00:54:35
just trying to sort it out, bro, porque
00:54:37
ya sabes, man, people freaking talk and
00:54:39
your name came up, bro. Your name came
00:54:41
up that you had information about a dead
00:54:42
body and stuff. So, I'm like, okay,
00:54:44
well, let's talk, man. Let's see a ver
00:54:45
que. Cuz at the end of the day I got a
00:54:47
job to do, you know, and I just got to
00:54:48
try to follow up with everything that I
00:54:50
get. No, I don't even know nothing about
00:54:52
that. No. Nada, bro. Okay.
00:54:55
Richard, what's a good phone number for
00:54:56
you, bro, in case I have questions?
00:55:03
>> [snorts]
00:55:04
>> What have you heard, bro?
00:55:05
Nothing. You haven't heard anything?
00:55:07
>> know her, actually. Or he or the house.
00:55:10
Oh, you said you were helping out, bro.
00:55:11
I'm sure you heard something. I heard
00:55:13
about it. Yeah? But, uh I work for the
00:55:15
state guys, you know. Mhm. And we had
00:55:16
some problems with the beaver pond over
00:55:17
there. Yeah.
00:55:19
And uh I There was an officer over there
00:55:21
and the search and rescue. Mhm.
00:55:24
His name uh
00:55:26
What was the guy's name?
00:55:28
No, you guys had just showed up there. I
00:55:30
remember talking to you. Yeah. Yeah, but
00:55:32
you don't know anything about no dead
00:55:33
body, nada, bro?
00:55:34
>> Nada, bro. Are you sure?
00:55:36
Okay,
00:55:37
>> I just heard just checking bro like I
00:55:38
said this information was passed on to
00:55:40
me today and I was like well let's go
00:55:42
let's go knock on some doors and see
00:55:43
what's up. You can [snorts] give me a
00:55:44
call bro my number Okay, well I know Mr.
00:55:47
Richard I'll let you get back to it man.
00:55:48
Gracias.
00:55:50
That's it?
00:55:52
That's
00:55:53
it. It's tell me there was a follow up.
00:55:56
Agent Mata says that he did speak with
00:55:58
Rick again at some point but I don't
00:56:01
know what came of it and we don't really
00:56:04
know much about Rick even. Old court
00:56:07
records from the 90s mention multiple
00:56:09
DWI charges. I don't see anything
00:56:11
violent on his record but there is some
00:56:14
weirdness here right? But like I don't
00:56:16
know how you can ignore and pieces that
00:56:19
deserve I believe more investigating. I
00:56:22
mean this bizarre statement allegedly
00:56:25
about a decapitated body, the odd
00:56:27
behavior the blue truck I mean did they
00:56:28
look at the truck? Like what if he hit
00:56:30
Melissa? Yeah there's no looking into
00:56:32
the truck as far as I know. But I mean
00:56:34
like the idea of like him knowing he has
00:56:36
like DWIs hit her I think it's an
00:56:37
interesting theory like Rick related or
00:56:40
not. People said that Melissa used to
00:56:42
walk on highway 518 before. Is it
00:56:45
possible that she was just out there for
00:56:46
a walk and some kind of accident
00:56:48
happened? Yes maybe that's possible but
00:56:50
then even in that theory I come back to
00:56:53
the phones. You don't wipe your phone
00:56:55
and your iCloud if you're just going to
00:56:57
go on a walk. This Rick thing it might
00:56:59
be nothing but this whole interaction
00:57:02
that Mata had with Rick I think this is
00:57:04
what cast a shadow over everything now
00:57:06
to me because when they say that a lead
00:57:09
went nowhere or that they cleared
00:57:11
someone
00:57:12
I question what that means.
00:57:14
>> Yeah. How deep did they really go? Like
00:57:16
another example remember Diego? The very
00:57:19
first person that Melissa's family was
00:57:21
suspicious of before they ever were
00:57:24
questioning Mark. This is Sierra's
00:57:26
ex-boyfriend who after the car accident
00:57:29
had like some brain damage and
00:57:30
apparently had been making threats,
00:57:31
sending Melissa like sexually explicit
00:57:34
text messages. Well, another agent who
00:57:36
worked the case said that Diego wouldn't
00:57:39
speak to them at all. But then agent
00:57:41
Mata says that Diego did give an initial
00:57:43
statement by phone. And I guess he
00:57:45
explained away the explicit text that he
00:57:47
sent Melissa. He told police that he
00:57:48
meant to send it to someone else. But
00:57:50
then when investigators tried to get him
00:57:51
to give a formal statement, Diego said
00:57:53
that he couldn't [music] make it. Then
00:57:55
he told them that he wanted his attorney
00:57:56
to be with him. But he never said who
00:57:58
his attorney even was. And it doesn't
00:58:01
seem like police are pushing. Now, we
00:58:02
couldn't get in touch with Diego, and
00:58:04
I'm not saying that he's involved. I
00:58:07
just want to be able to close the loop
00:58:10
on some [music] of these things. But I
00:58:11
keep finding that really hard to do.
00:58:14
Though for what it's worth, Sierra
00:58:16
doesn't think that Diego had anything to
00:58:19
do with her mom going missing. She
00:58:21
doesn't see how he could pull something
00:58:23
like that off.
00:58:24
Now, for all the things that I think may
00:58:26
not have been done, I do want to
00:58:29
highlight the things that were. [music]
00:58:31
Police poured a lot of resources into
00:58:34
the physical search for Melissa. They
00:58:36
used helicopters, drones, tracking and
00:58:39
sent canines all through the dense
00:58:42
mountainous terrain around Highway 518.
00:58:44
Although official searches didn't start
00:58:46
until days after she disappeared. But
00:58:48
they ran facial recognition alerts
00:58:50
across the nation. But to date, nothing
00:58:52
has ever come of that. And there's been
00:58:55
no bank activity, no passport
00:58:57
applications in Melissa's name, no
00:59:00
driver's license changes, no
00:59:02
prescription refills for her thyroid
00:59:04
medication, which she needs as a thyroid
00:59:07
cancer survivor. So, there is just no
00:59:10
trace of her
00:59:12
anywhere. But the Casillas side, they do
00:59:15
still think that she's out there living
00:59:17
a new life. Mark's most developed theory
00:59:20
to date is that Melissa connected with
00:59:22
someone through a job that she had
00:59:23
applied for shortly before she
00:59:25
disappeared. A position with a Los
00:59:27
Alamos subcontractor. He thinks that
00:59:29
whoever she met through that process
00:59:32
offered to help her escape her financial
00:59:34
situation, like gave her a job, helped
00:59:36
her disappear. And to Mark, that idea
00:59:39
gets some fuel from someone commenting
00:59:42
on social media claiming that Melissa is
00:59:44
safe in Seattle where that company has
00:59:46
ties. [music] Now, investigators confirm
00:59:49
that she did apply for this job. She was
00:59:52
even selected for the position, but the
00:59:55
company told police that they never
00:59:56
managed to reach Melissa to even extend
00:59:58
the offer. She had already vanished by
01:00:01
then. And according to Melissa's sister
01:00:03
Trudy and her daughter Jasmine, they say
01:00:05
the position was actually based at the
01:00:07
same Los Alamos site that she had
01:00:09
already worked at. So, she wouldn't have
01:00:11
needed to go anywhere for it. And
01:00:13
there's one more thing that makes Mark
01:00:15
certain that Melissa is fine. It was a
01:00:19
weird interaction that Sierra had with a
01:00:22
woman not too long after her mom
01:00:25
vanished.
01:00:29
According to Mark and Sierra,
01:00:31
not too long after Melissa went missing,
01:00:34
this woman and her fiance, or maybe it
01:00:36
was her husband, showed up at Sierra's
01:00:38
work out of nowhere. Apparently, the
01:00:40
woman was a long-time friend of
01:00:43
Melissa's and she and the guy had driven
01:00:45
all the way from Colorado where they
01:00:47
live to see [music] Sierra, who, by the
01:00:50
way, didn't even recognize this woman
01:00:51
because if the two of them ever met at
01:00:53
all, it was when Sierra was really
01:00:55
little. [music] And that's the part of
01:00:57
why this whole encounter is so bizarre.
01:01:00
So, supposedly, the woman made this 300
01:01:03
or so mile trip to Taos, New Mexico to
01:01:06
give [music] Sierra a $50 high school
01:01:09
graduation gift,
01:01:12
which I feel like you could have mailed.
01:01:13
Yeah. But while she's there, she makes
01:01:16
sure to get a photo of her and Sierra
01:01:18
together.
01:01:20
And she makes these cryptic comments
01:01:22
like I have psychic abilities and I feel
01:01:25
like Melissa is fine.
01:01:27
And if your mom really left on her own,
01:01:30
she always knows where to find me. She
01:01:33
also told Sierra to keep her visit a
01:01:35
secret from Mark, which obviously she
01:01:38
did not.
01:01:39
>> Mhm.
01:01:39
So Mark starts thinking, maybe Melissa
01:01:42
sent [music] this woman as a proxy of
01:01:45
sorts to check on Sierra. They were
01:01:48
super close. She really loved Sierra. So
01:01:50
like hence the photo. Maybe Melissa
01:01:53
wanted to know that Sierra was okay
01:01:55
after her mom vanished into thin air.
01:01:58
Now, the kind of strange part to me is
01:02:01
that Mark didn't bring this to police
01:02:03
[music] right away. He said that he
01:02:05
wanted to wait and see if Melissa would
01:02:07
contact them. But after like a week goes
01:02:10
by and there is no contact, he finally
01:02:12
lets them know. I mean, was she in
01:02:14
contact with that friend before she went
01:02:17
missing? Well, Sierra says that Melissa
01:02:19
had reached out to this woman with an
01:02:21
invite to [music] Sierra's graduation
01:02:23
party, but I don't know if that's
01:02:24
something that the woman told her or if
01:02:27
Melissa had relayed that to Sierra at
01:02:29
some point. Okay, and like I know
01:02:32
Melissa's
01:02:33
phone, both of them, were wiped, but
01:02:35
they can still get like call and text
01:02:36
records from like the cell service
01:02:39
provider. So we should be able to see
01:02:40
like who she was in contact with before
01:02:43
she was vanished, regardless if the
01:02:44
phones were factory reset or not, right?
01:02:47
>> Yes, theoretically, yes, but last I
01:02:49
heard, her records, and mind you, she
01:02:51
went missing June 2025,
01:02:53
>> Uh-huh. those records are still under
01:02:55
review.
01:02:56
>> [snorts]
01:02:57
>> So, I don't know. Ok- okay, and did they
01:03:00
get anything from Mark's phone? Agent
01:03:02
Mata told us that there is nothing on
01:03:04
Mark's phone that suggests he was
01:03:06
plotting against Melissa.
01:03:09
I don't know.
01:03:09
>> not an answer. [laughter]
01:03:10
>> Well, and I also don't know, like, wait,
01:03:12
so you know, you've been through Mark's
01:03:13
phone completely, but not the person who
01:03:15
actually went missing. And I know, like
01:03:17
right Mark had his physical phone. I
01:03:19
don't know, priorities? Yeah, I don't
01:03:22
know I don't know what's going on there.
01:03:23
Obviously they would have to get a
01:03:24
warrant from the cell provider, but like
01:03:26
all this time later I I feel like we
01:03:29
should be able to like have some answers
01:03:30
about what was on her phone. Now, all in
01:03:33
all, Agent Matta's interpretation of all
01:03:36
that he has so far is that Melissa
01:03:39
probably left on her own. Police have
01:03:41
not officially ruled out foul play, but
01:03:44
Matta's gut says that she's alive.
01:03:47
Legally, she's classified as missing and
01:03:49
endangered because of the risk of her
01:03:51
being without her thyroid medication,
01:03:53
but as far as law enforcement is
01:03:55
concerned,
01:03:57
there's no suspect, there's no crime
01:03:59
scene, and no evidence that anything
01:04:00
[music]
01:04:01
happened to her after that camera caught
01:04:03
her on Highway 518. But the Mondragons
01:04:07
think that is dead wrong.
01:04:10
And the dominant [music] theory among
01:04:11
them still is that Mark is somehow
01:04:15
connected to whatever happened to
01:04:18
Melissa in some way. [music] Though they
01:04:20
haven't ruled out other possibilities
01:04:23
including a random abduction while
01:04:25
Melissa was out walking. The only thing
01:04:27
that they feel certain of is that
01:04:29
Melissa would not willingly abandon the
01:04:31
daughter that she loved so much without
01:04:33
a word. Now Mark denies any involvement
01:04:37
and he got pissed when our reporter Nina
01:04:39
asked him point blank if he killed
01:04:40
Melissa.
01:04:42
He said that no one has ever asked him
01:04:43
that before. No one, not even the
01:04:46
police? I guess not.
01:04:48
But considering the interview that we
01:04:51
saw and heard with Rick, like I
01:04:53
honestly, that wouldn't surprise me.
01:04:55
Okay.
01:04:56
I I don't know.
01:04:58
I don't usually ask this
01:05:00
cuz normally I can tell. Uh
01:05:03
but I'm kind of dying to know like what
01:05:05
what do you think? This one genuinely
01:05:08
has me in knots. Like there are very few
01:05:10
cases that have me flip-flopping back
01:05:14
and forth by the day the way that this
01:05:16
one does. You cannot argue with that
01:05:18
video. Like she
01:05:20
left her house on her own. She
01:05:23
had a backpack. She lied to everyone
01:05:25
about what she was doing that day.
01:05:28
I do believe that she wiped her phones.
01:05:31
It is so easy to look at this and say
01:05:34
that she left. Especially the more
01:05:36
stories we hear about other women who
01:05:39
have done the same. I feel like mothers
01:05:41
have this different societal expectation
01:05:44
than [music] father or like men do and
01:05:45
it's hard for us to wrap our minds
01:05:48
around a mom leaving. But it does
01:05:50
happen. The story that like everyone is
01:05:52
recently passing around about that woman
01:05:54
in North Carolina, that mom who went
01:05:55
missing in like 2001.
01:05:56
>> Yeah, um Michelle Michelle Hunley Smith.
01:05:59
>> Mhm. So like her husband reported her
01:06:01
missing, suspicion fell on him. Everyone
01:06:04
assumed the worst. And then Michelle
01:06:06
turned up alive in February of 2026
01:06:09
having quietly built a whole new life
01:06:11
somewhere else for more than two
01:06:13
decades.
01:06:15
So it's not beyond the realm of
01:06:17
possibility. If everything was closing
01:06:20
in on her the way people are describing,
01:06:22
is it possible she took her own life?
01:06:24
That's the like the one theory that no
01:06:26
one seems to really buy into. Like
01:06:27
Sierra is willing to believe that her
01:06:29
mom left, but she doesn't think that she
01:06:32
would ever do that to her. She thinks
01:06:33
that like kind of what I said earlier,
01:06:35
like at least she would have left a
01:06:36
note. She's not going to leave them
01:06:37
wondering. And I mean if you're still
01:06:38
like asking what I think, I agree with
01:06:42
that, right? Like
01:06:43
I keep going back to the phones. Like I
01:06:45
don't think you need to wipe your phone
01:06:47
and your iCloud if your plan is just to
01:06:50
take your own life. Yeah, but you also
01:06:52
don't really need to do that if you're
01:06:54
just walking away. Like just leave them
01:06:56
behind. Well, un unless like I said,
01:06:58
like there's something on the phone.
01:07:00
There's like communications with someone
01:07:02
or
01:07:03
something that has to do with a plan.
01:07:05
Now,
01:07:06
I'm about to go way out there for a
01:07:09
second, so stay with me. Have you seen
01:07:12
the connections that people are making
01:07:14
recently around the missing scientists,
01:07:17
researchers, [music]
01:07:18
military officials? Yeah. So,
01:07:21
for those who are not in the know,
01:07:23
this is something to pay attention to.
01:07:26
The short version of this is that a
01:07:28
handful of US people connected to places
01:07:32
like Los Alamos and NASA have either
01:07:35
died or disappeared over the last few
01:07:38
years. At the time that we're recording
01:07:40
this, the running list is at 11, and
01:07:43
there's this theory that these are
01:07:45
somehow connected to
01:07:48
maybe foreign espionage, that like
01:07:50
countries like China or Russia are
01:07:52
targeting people with access to
01:07:54
sensitive US technology. To me, that's
01:07:56
the least scary scenario. The scarier
01:07:59
one is that the call is coming from
01:08:01
inside the house, or even that private
01:08:04
corporations who make a lot of money and
01:08:06
energy don't want us figuring out an
01:08:08
unlock for free energy. And I I'm not
01:08:11
just pulling this out of a hat on my
01:08:13
own. So, a former FBI assistant director
01:08:16
named Chris Swecker has been vocal about
01:08:20
the links that these people have. All
01:08:22
mostly connected, not directly, but like
01:08:25
in the type of work that they do. Now,
01:08:27
he's not claiming specific knowledge of
01:08:29
any of these individual cases, but he
01:08:31
believes that the patterns are
01:08:33
suspicious enough that the FBI needs to
01:08:35
stop treating them as isolated incidents
01:08:37
and start pulling resources to look for
01:08:39
links. And the feds are apparently
01:08:42
involved now. Newsweek reported that the
01:08:44
FBI is investigating the series of cases
01:08:47
as of late April. And I bring this all
01:08:50
back because Melissa's name has appeared
01:08:53
on this list circulating in news
01:08:55
coverage of this pattern. So, we reached
01:08:58
out to Swecker directly to see if he
01:09:01
knew anything beyond what was making
01:09:03
kind of like the rounds in the tabloids
01:09:05
and stuff.
01:09:06
He didn't, but he did clarify that he's
01:09:08
not suggesting that all of the cases are
01:09:11
connected, which I feel like is like
01:09:12
what they were saying.
01:09:13
>> to say which [laughter] is yeah, feels
01:09:15
confusing. According to various news
01:09:17
coverage, on paper a few of these cases
01:09:20
have already been explained away.
01:09:22
A drowning, a murder by a former
01:09:24
classmate, cardiovascular disease, a
01:09:26
suicide. But Swecker's bigger point was
01:09:29
more like they might not all be
01:09:31
connected, but like everyone counted in
01:09:32
this potential group worked near or with
01:09:35
sensitive stuff. And he says that
01:09:37
foreign intelligence services will go
01:09:39
after people in those positions, even
01:09:43
admins, because they like know who's in
01:09:46
what meetings. They know who works
01:09:47
where. They know what schedules look
01:09:49
like. Melissa Cacias, that was her role.
01:09:52
She was an assistant admin. So, what
01:09:55
information would she have had access
01:09:58
to? As you can imagine, I don't have the
01:10:00
clearance to know that. I don't even
01:10:02
know, truthfully, if police could get
01:10:05
clearance to know that.
01:10:06
>> Right. And listen, the timing
01:10:08
is weird around when she goes missing.
01:10:11
Like we don't have time to go down the
01:10:13
whole list, but I'll give you like a few
01:10:15
examples so you kind of get a sense of
01:10:17
what people are talking about online.
01:10:19
So, on May 4th, 2025, this is a month
01:10:21
and a half before Melissa goes missing,
01:10:23
a retired Los Alamos employee named
01:10:26
Anthony Chavez walks out of his home
01:10:28
leaving behind his wallet, his keys, his
01:10:31
cigarettes, car in the driveway, no cell
01:10:33
phone, disappears. Then, on June 22nd,
01:10:36
2025, this is just a few days before
01:10:39
Melissa goes missing, 60-year-old Monica
01:10:42
Reza went hiking with two companions. At
01:10:45
some point, one of her companions was
01:10:47
like 30 ft ahead of her. He turns
01:10:48
around, gestures to show her like which
01:10:50
direction to go in. She acknowledges
01:10:52
him. Moments later, when he looked back
01:10:54
again, she's gone. Has not been seen
01:10:57
since. What? Now, that was in
01:10:59
California, not New Mexico. And Monica
01:11:01
worked for NASA, not Los Alamos. But
01:11:04
then you have Melissa going missing June
01:11:06
26th, and then closer to Melissa's home,
01:11:09
William Neil McCasland, a retired Air
01:11:12
Force Major General who once oversaw the
01:11:15
lab that funds work in the same
01:11:18
aerospace field that Monica worked in,
01:11:21
he goes missing February 27th, 2026.
01:11:25
Walks out of his Albuquerque, New Mexico
01:11:27
home with a gun and his wallet while
01:11:30
leaving behind his phone and other
01:11:32
belongings. And then poof, gone. Now, I
01:11:35
mean, you can see this is very tenuous.
01:11:38
>> Mhm. But the coincidences have people
01:11:41
asking questions. Melissa especially
01:11:45
could have been an easy target if she
01:11:47
had the right information or
01:11:50
connections, right? Like she was in a
01:11:51
bad financial spot. Someone promises her
01:11:56
a new life or a new start. Okay, but
01:11:58
she's identified as a good target by
01:12:02
someone. They see all the trouble she's
01:12:04
in, they offer her a way out, she takes
01:12:05
it.
01:12:07
What, leaving her family behind to clean
01:12:09
up the mess?
01:12:11
Yes. But like I mean, she Her family's
01:12:13
going to have to clean up the mess if
01:12:13
she just walked away on her own. Like so
01:12:15
I mean, to me that's not like any less
01:12:17
of a reason why she wouldn't have have
01:12:18
done it. And remember, her and her
01:12:20
husband, they just got their clearance
01:12:21
taken away. I'm telling you like, I
01:12:23
don't know. And this could like
01:12:25
begin to explain how she could start
01:12:26
over without her ID ever popping up.
01:12:28
Like how she'd get more meds. Like she
01:12:29
would have this whole new identity. Like
01:12:33
in a way easier way if someone's helping
01:12:34
you, right? Like I, no matter what, if
01:12:37
she walked away, I think she needed
01:12:39
someone's help to do that. But then,
01:12:42
come back to the phones. It's always
01:12:43
like the phones for me.
01:12:45
If she walked away,
01:12:47
connected to this thing or not, why
01:12:49
wouldn't she just take her phones and
01:12:50
get rid of them? Like I know
01:12:52
I like
01:12:54
I know you don't want to keep them.
01:12:55
>> Well, like right, like keeping them
01:12:57
keeping them active, tracking, right? So
01:12:59
like factory reset them, but toss them
01:13:01
in your bag and get rid of them
01:13:02
somewhere else.
01:13:02
>> Dump them in in some water, like put
01:13:04
them in like in the mountains, like put
01:13:07
them in a dumpster. Like there's
01:13:08
something
01:13:10
about that part that like or even like
01:13:12
leaving her phones is like is that like
01:13:14
a plant? Is this like a a a weird red
01:13:17
herring? Why do you leave them? I mean I
01:13:18
guess unless you want your like them to
01:13:19
have like phones are expensive. You
01:13:21
leave them behind cuz they're free
01:13:21
phones. So you can get like
01:13:23
conspiratorial.
01:13:25
But then, you know, you remember that we
01:13:28
see her on camera walking alone after
01:13:31
the phones are wiped.
01:13:34
And then I don't know, you just keep
01:13:35
going around and like where was she
01:13:36
going? Like I just
01:13:38
I don't know. I mean I mean maybe
01:13:40
whatever instructions she got for wiping
01:13:41
the phone like from we were saying
01:13:43
Googling it, but maybe from someone,
01:13:45
whatever. Maybe they said it was better
01:13:47
if she left them behind so there was
01:13:49
like no way to track
01:13:51
the actual like hardware device itself.
01:13:54
Maybe. Listen, it doesn't have to be
01:13:57
connected to all these other cases. In
01:13:59
fact, one thing that everyone we spoke
01:14:02
to seems to actually agree on, and there
01:14:04
are like few of those things, they do
01:14:07
not believe that Melissa is connected to
01:14:10
these other scientists or or whatever
01:14:12
else is going on. Mark told us that he
01:14:14
thought the theory was BS. Jasmine does
01:14:17
not think it holds up either. Mata said
01:14:20
specifically didn't even know anything
01:14:21
about Anthony Chavez, who was like the
01:14:23
one person I mentioned who was connected
01:14:25
to Los Alamos directly, right? But it
01:14:29
would be a completely different
01:14:30
jurisdiction cuz he lived in Los Alamos.
01:14:33
And when Mata talked about it, he said,
01:14:35
you know, I'll look into it, but he's
01:14:36
like, you know, those places are
01:14:38
compartmentalized by design. They're set
01:14:40
up so people only know what they need to
01:14:42
know for their job. So I am I think he
01:14:44
was saying that implying that it's like
01:14:46
unlikely that Anthony and Melissa were
01:14:48
on the same thing or
01:14:49
>> ever crossed paths, yeah. But I I don't
01:14:51
I again, I don't know anything about the
01:14:53
work that she did. And I highly doubt I
01:14:55
will ever know about the work that she
01:14:56
did because until her clearance just
01:14:59
recently got revoked, like she I think
01:15:01
was working on like high clearance
01:15:02
stuff. So, I don't know. Like this
01:15:05
missing or deceased scientist thing
01:15:08
it has me down like a genuine rabbit
01:15:11
hole. Like I mean, I hope to come back
01:15:13
out of it someday with like a more
01:15:15
complete episode on it. But like one,
01:15:18
it's a hard nut to crack when
01:15:19
practically everyone was working on top
01:15:22
secret
01:15:23
and two, I actually think I've already
01:15:25
like tripped some wires and
01:15:28
you laugh, but like genuinely have
01:15:29
people monitoring what I'm like getting
01:15:31
my nose in.
01:15:32
So, this is always my reminder to you,
01:15:34
to everyone that like I know how to
01:15:36
swim, I love my life, I'm as safe as
01:15:38
safe can be. So, like if I so much as
01:15:40
get in a fender bender right now, it
01:15:42
should be considered suspicious. Like
01:15:44
there was this one scientist who's on
01:15:46
this list, Amy Eckridge, and her case is
01:15:48
wild. People should go look it up, but
01:15:50
she was on a Zoom call with somebody
01:15:53
that got recorded. And she's like, "The
01:15:54
reason I stick my neck out is because at
01:15:57
least if my head gets chopped off,
01:15:59
people will take notice. If you don't do
01:16:00
that, they bury you and nobody talks
01:16:03
about it." So,
01:16:05
in the spirit of sticking my neck out,
01:16:06
any Crime Junkies out there who want to
01:16:08
point me in the right direction,
01:16:12
And listen, while I absolutely believe
01:16:15
that something scary is happening to
01:16:17
people who work in aerospace sciences,
01:16:20
it's probably not the solution that
01:16:23
we're looking for in Melissa's case.
01:16:24
Right? Like if we go Occam's razor,
01:16:27
that would suggest that the simplest
01:16:29
answer is likely the right one. Melissa
01:16:32
was in a bad financial spot.
01:16:34
She was planning to move away when her
01:16:36
daughter went off to beauty school, but
01:16:38
the loan application for that had just
01:16:39
gotten rejected.
01:16:41
What was she going to do now? She very
01:16:43
clearly told everyone different stories
01:16:45
about the day that she went missing. Her
01:16:48
phones were wiped. Her iCloud was wiped.
01:16:51
And after that, she is seen walking
01:16:54
alone down Highway 518. The simplest
01:16:57
explanation is that she chose to walk
01:16:59
away and did it on her own. And some
01:17:02
days, I really believe that.
01:17:05
But then other days, I'll get a new
01:17:07
tidbit of info that makes no freaking
01:17:11
sense. Like we've been talking to family
01:17:14
and reporting on this for months and
01:17:16
months and months, but right as I was
01:17:19
finalizing this episode, Nina pinged me
01:17:22
with another curveball. You know that
01:17:24
friend from Colorado that checked in on
01:17:26
Sierra? Super randomly with like $50 for
01:17:28
high school graduation gift. We just
01:17:30
found out that police did find and talk
01:17:33
to that woman. She denied the entire
01:17:35
thing.
01:17:36
What? She says she hasn't been to Taos
01:17:39
since 2014. She didn't visit Sierra,
01:17:42
denied even knowing Melissa or Sierra,
01:17:47
and said that she was confused as to how
01:17:49
or why her name was even being brought
01:17:51
up in the investigation.
01:17:52
>> Wait. [laughter]
01:17:54
Dude, this is But there's like But a-
01:17:56
What? This is the weirdest thing to me.
01:18:00
Now, we tried reaching out to this
01:18:01
woman, but as of this recording, we've
01:18:03
been unsuccessful. If she hears this, I
01:18:06
would love to talk to you. Again, my
01:18:09
01:18:12
>> Wait, so so this visit didn't happen? I
01:18:15
don't know. This is like Mark and Sierra
01:18:17
both still say that this thing happened.
01:18:20
I just can't get to the bottom of who
01:18:23
this woman is. Like did she have ties to
01:18:26
Melissa? And now she's distancing
01:18:28
herself. Did she like
01:18:30
make up ties to Melissa? And she's
01:18:34
connected to something or someone. If
01:18:36
you don't believe that this woman,
01:18:39
whoever she is, if you don't believe
01:18:40
she's lying and you want to say that
01:18:42
like Mark made the story up, you have to
01:18:44
remember
01:18:45
>> Sierra is in on it. Sierra is the one
01:18:47
who saw her. Like say whatever you will
01:18:49
about Mark and Melissa's relationship,
01:18:51
Sierra and her mom were so close. I
01:18:54
cannot imagine why on earth she would
01:18:58
ever make anything like that up. I don't
01:18:59
think that that happened. So, are we
01:19:01
like circling back to the conspiracy
01:19:04
theory then? I mean like [laughter]
01:19:06
It crossed my mind. I don't know what to
01:19:08
believe about this woman. I am just
01:19:10
hoping she reaches out so we can sort
01:19:13
all this out. Again, I mean we know that
01:19:15
like interviews are quick, maybe they're
01:19:17
not thorough, maybe something's lost in
01:19:18
translation or missing like a very
01:19:20
simple explanation.
01:19:23
I don't know.
01:19:24
Do you think that
01:19:26
there's any world where Sierra would
01:19:28
protect her dad if he [music] asked her
01:19:30
to go along with something? Like she's
01:19:32
she's already lost one parent and if
01:19:35
everyone is trying to come down on your
01:19:36
dad and you believe in your heart of
01:19:39
hearts that he's innocent like if he
01:19:41
asked you to do something
01:19:42
>> where you're going but no, like it
01:19:43
doesn't it doesn't seem like she would
01:19:46
do something like that from talking to
01:19:47
her.
01:19:48
But I will say like there is something
01:19:50
about Mark that I still just can't quite
01:19:52
figure out. Like I tried to tell this
01:19:54
story in as streamlined a way as
01:19:57
possible, but there were all these
01:19:59
rabbit holes along the way that often
01:20:01
came from stuff that he said or did that
01:20:04
was odd but then ultimately led nowhere.
01:20:07
Cuz that kind of like unresolved
01:20:08
weirdness is all over this case casting
01:20:11
a shadow.
01:20:13
Like for instance and like I didn't even
01:20:15
get into this earlier
01:20:17
Mark had originally told a story about
01:20:20
the morning of the 26th when he and
01:20:22
Melissa drove to work that involved them
01:20:25
stopping at this particular gas station
01:20:27
on their way. And so in part of like
01:20:30
looking for Melissa and looking into
01:20:31
this, police pulled footage, they were
01:20:33
never there. Which seems fishy as hell,
01:20:37
except security footage put them both to
01:20:39
like going through the gate at Los
01:20:41
Alamos after this, like when she's
01:20:43
dropping Mark off at work.
01:20:44
>> Yeah, and like we also see her like the
01:20:46
rest of the day until 2:00.
01:20:48
>> Yeah, bring She brings her daughter
01:20:50
lunch. She's on camera. She's by
01:20:51
herself. She seems fine. So, it it's why
01:20:54
I didn't bring it up earlier, it means
01:20:55
nothing.
01:20:56
But then you're like, well then where
01:20:57
did this even come from? Cuz you're not
01:20:59
talking Mark like a year later. Like
01:21:01
it's right when it happened. And then
01:21:03
also like what's with him being so
01:21:04
defensive and aggressive? Like I
01:21:07
honestly get him acting like that
01:21:09
towards us. Like we flat out asked the
01:21:10
guy if he killed his wife, like who he
01:21:12
believes walked out on him.
01:21:14
But he was like this with her family
01:21:16
long before we came along. I mean, do
01:21:19
you think her bringing Sierra lunch
01:21:22
was like a little way of saying goodbye?
01:21:23
Like we haven't really talked about like
01:21:25
if that was something normal for her to
01:21:27
do. Like if she brought Sierra lunch
01:21:29
often, if it was something that they did
01:21:30
together. I assume no, because like she
01:21:32
would normally be at work, right? Like
01:21:34
we She just doesn't go to work today and
01:21:35
that's why she's doing this. And so I
01:21:37
think it's easy to be like, oh yeah, she
01:21:38
wanted to see her one more time. But
01:21:40
like if this was a goodbye, it was the
01:21:42
shortest goodbye ever. Like she is
01:21:44
literally in and out giving her the
01:21:46
sandwich in like a minute.
01:21:48
So, maybe maybe she wanted to see her
01:21:51
one time, maybe not. Like I feel like
01:21:53
this is one of those things you could
01:21:54
read either way. Was this just like a
01:21:56
mom doing something nice for her
01:21:57
daughter real quick because that's just
01:21:59
the kind of mom she was, and it wasn't a
01:22:01
long interaction because she planned on
01:22:02
seeing her later at home, or was this a
01:22:04
goodbye? One more look at her baby girl
01:22:07
who she knew she might never see again.
01:22:08
One quick glance hurried because she had
01:22:11
to get moving before her family started
01:22:14
coming home.
01:22:15
>> Mhm.
01:22:15
Then even that doesn't make sense
01:22:17
because why would she wait so long to
01:22:19
leave? Like we haven't talked about
01:22:21
that. Like she could have gotten a way
01:22:24
better head start if she had left in the
01:22:26
morning.
01:22:26
>> Right, cuz she had told so many stories
01:22:29
to kind of free up the day, explain
01:22:31
where she was.
01:22:32
>> goes to work, she doesn't have to be, as
01:22:34
far as I know, seen by anyone. Right. I
01:22:37
am really obsessed with trying to figure
01:22:39
out where Melissa was for the rest of
01:22:42
the day.
01:22:43
I'm convinced that that has to hold some
01:22:46
kind of clue. And interestingly, while
01:22:49
we know geofencing is no longer an
01:22:51
option for police like about phone data
01:22:53
and who was maybe like around her house,
01:22:55
I don't think phone data is totally off
01:22:56
the table. Agent Mata says that there
01:22:58
was another company who offered to do
01:23:00
something similar to geofencing for a
01:23:02
fee of about 5 grand. But the agency
01:23:05
actually decided against it for now.
01:23:07
They said it was partly over the cost,
01:23:10
partly because they don't know how it
01:23:12
would hold up in court if this case ever
01:23:15
becomes criminal. And I know our
01:23:18
listeners are like, "Show up." I'll even
01:23:20
talk to the family. I'm like, "Listen,
01:23:21
do we need to like fundraise? Do you
01:23:22
guys need the funds?" Like, even if my
01:23:24
mom even if you pulled it up in court,
01:23:25
like does it give you something when you
01:23:27
have nothing? Either an answer or like a
01:23:29
non-answer, like Right.
01:23:31
>> to rule something out, right?
01:23:33
>> But I actually think there's like a
01:23:33
better option. So, it sounds like what
01:23:36
they were looking at, if it's close to
01:23:37
geofencing, is about putting other
01:23:40
phones in proximity to hers or like an
01:23:42
area. I am more interested in where her
01:23:45
phone was before it was wiped. And I
01:23:48
know that that data is still available.
01:23:51
You see, I got schooled recently. I was
01:23:54
out in the desert hanging out with some
01:23:56
cadaver dogs and their amazing handlers,
01:23:58
as one does.
01:24:00
>> [laughter]
01:24:00
>> And the woman who was organizing this
01:24:02
search, her name is Candice Cooley.
01:24:06
She is a badass. She was always a canine
01:24:09
handler, but after her son Dylan was
01:24:11
murdered in 2022, she took her work to
01:24:14
the next level. And she created an
01:24:16
nonprofit called Dylan's Legacy after
01:24:18
that. And while her work is mostly
01:24:20
around dog searches,
01:24:22
when you're doing a dog search, you have
01:24:24
to figure out where to start your
01:24:26
search, your cadaver search, right?
01:24:28
>> And she learned something that she is
01:24:30
now on a mission to share with every law
01:24:33
enforcement officer who will listen
01:24:35
because it has the potential to be a
01:24:37
huge unlock for investigating cases in
01:24:41
the digital [music] age. When it comes
01:24:43
to phones, everyone's always thinking
01:24:45
about cell phone providers, towers,
01:24:47
pings. And yeah, that usually requires a
01:24:51
warrant. But by the way,
01:24:53
all of those apps on your phone,
01:24:55
Facebook, Instagram, AccuWeather, you've
01:24:58
been giving all of them permission to
01:25:02
follow every step you take if like
01:25:04
cookies are accepted. Honestly,
01:25:06
sometimes they're doing it anyways.
01:25:08
And that data doesn't just live in your
01:25:10
phone. The companies collect it, the
01:25:12
companies store it, and in some cases,
01:25:15
they're sharing it or selling portions
01:25:18
of it, which means that it's not private
01:25:21
data, right? That means that
01:25:24
investigators don't have to rely on cell
01:25:27
towers only. They can go to these
01:25:29
companies and even though like there's
01:25:31
this common belief that you have to have
01:25:33
a warrant to get that data from those
01:25:35
companies, that is not true. There are
01:25:39
actually what they call exigent
01:25:40
circumstances
01:25:42
where you do not have to have a warrant.
01:25:44
You contact these companies, tell them
01:25:46
there are exigent circumstances, right?
01:25:47
You have a missing person, you're
01:25:49
investigating a homicide,
01:25:50
>> Mhm.
01:25:50
>> and they can get you
01:25:53
like I don't know how much, but for sure
01:25:55
location data that can map where someone
01:25:59
was, where were they moving. So take
01:26:02
Melissa's case, right? We know she had
01:26:04
Facebook. Mata could request data from
01:26:08
Meta, which depending on her settings
01:26:09
might include location-related
01:26:12
information from that day, which might
01:26:15
clear up a lot.
01:26:18
But, knowing this case, it also might
01:26:22
throw a massive curveball into it.
01:26:24
>> Honestly, it probably would throw a
01:26:25
massive curveball, [laughter] but like
01:26:26
at least we'd be one step closer to the
01:26:28
truth.
01:26:29
>> Right. Now, the thing is
01:26:31
another thing I I need to make sure
01:26:32
people are hearing this mention if this
01:26:34
is a new concept to anyone, especially
01:26:35
if you're in law enforcement or have a
01:26:36
family who's missing. Even if you get
01:26:38
there, right? Like even if you do the
01:26:41
exigent circumstances, they give you the
01:26:42
data, what you'll end up with is this
01:26:44
massive pile of data points, likely in
01:26:46
some kind of spreadsheet. Now,
01:26:48
traditionally, that means that someone
01:26:50
has to like sit down, analyze it, which
01:26:53
can take time. I mean, we're still
01:26:55
waiting on test results a year later to
01:26:56
know what blood was in Melissa's house.
01:26:58
>> Right. I don't have high hopes that
01:26:59
police just have like someone on deck to
01:27:01
go through data. But good news, it is
01:27:04
easier now than it's ever been. There is
01:27:07
a platform called Badger that lets
01:27:08
investigators map phone data from
01:27:11
carriers, from Google, Snapchat, and
01:27:13
more, track phones in real time, and
01:27:15
manage the whole legal process in one
01:27:17
place. So, I would encourage anyone
01:27:20
whose loved one vanished with their
01:27:22
phone in the social media age to press
01:27:25
their detective to look into this. Maybe
01:27:27
it will lead to answers.
01:27:29
Maybe it will just lead to more
01:27:30
questions, and that's kind of where I am
01:27:32
with this whole case. Every time I think
01:27:35
I have a handle on it, something shifts.
01:27:38
A new detail that doesn't quite fit, or
01:27:40
a conspiracy theory sweeping the
01:27:42
internet that of course has some kind of
01:27:45
Maybe tie or cast a shadow over this
01:27:46
case, cuz why wouldn't it? It feels like
01:27:49
the farther we get out from June 26,
01:27:52
2025,
01:27:53
the further we are from any real
01:27:56
answers. But I think real answers are
01:27:58
there if we can get more real facts. We
01:28:02
don't know if Melissa walked away from a
01:28:04
life that had become unbearable. We
01:28:07
don't know if someone made sure she
01:28:09
couldn't come back. We don't even know
01:28:12
why she was on Highway 518 on the
01:28:14
afternoon of June 26th, 2025.
01:28:18
We just know that she was there and then
01:28:20
she vanished. We spoke to a lot of
01:28:22
people for this episode. Mark, Sierra,
01:28:26
Melissa's parents and siblings, her
01:28:27
stepdaughters, her niece Jasmine, some
01:28:29
friends,
01:28:31
and the two sides disagree on almost
01:28:33
everything. But strip it all away and
01:28:35
everyone says some version of the same
01:28:37
thing. They just want to find Melissa.
01:28:40
And if she is out there,
01:28:42
all they're asking is that she lets them
01:28:44
know that she's okay.
01:28:46
Cuz no matter which side they're on,
01:28:49
that is the part that's eating them
01:28:51
alive, the not knowing.
01:28:54
So if anyone out there knows anything
01:28:56
about what happened to Melissa Casillas,
01:28:58
New Mexico State Police want to hear
01:29:00
from you. There is a reward available
01:29:02
for information. You can reach them at
01:29:04
505-425-6771.
01:29:07
And that goes for Melissa, too. If she's
01:29:10
out there.
01:29:14
Camera Ashley, check your texts.
01:29:16
Marilyn, you sent me more
01:29:19
Get the [ __ ] out of here. No, I'm
01:29:21
Jared, I got
01:29:22
>> [laughter]
01:29:23
>> a lot. Jared, and that's how it
01:29:25
basically went after we were done
01:29:26
recording. You what?
01:29:29
It's a jumble. I'm confused.
01:29:32
>> [laughter]
01:29:32
>> We have a This has been like basically
01:29:34
me the whole me.
01:29:37
I don't really understand all this. I
01:29:39
don't even start to understand it.
01:29:41
Oh my god.
01:29:43
Is this related to Melissa Casillas?
01:29:45
Yes. Yes.
01:29:46
Of course it is. Oh, no.

Badges

This episode stands out for the following:

  • 80
    Most heartbreaking
  • 75
    Most dramatic
  • 70
    Most emotional
  • 70
    Best overall

Episode Highlights

  • The Disappearance of Melissa Casillas
    Melissa Casillas vanishes under mysterious circumstances, leaving her family in turmoil.
    “This is the story of Melissa Casillas.”
    @ 01m 05s
    April 29, 2026
  • Suspicion Surrounds Mark
    As details unfold, Mark's behavior raises questions about his involvement in Melissa's disappearance.
    “Mark didn't mention any of that to police.”
    @ 16m 28s
    April 29, 2026
  • The Search Party Begins
    The Mondragons organize a search party for Melissa, while Mark claims she left voluntarily.
    “Don't look for her again?”
    @ 20m 25s
    April 29, 2026
  • Mark's Alibi and Theories
    Mark insists Melissa left on her own, despite mounting evidence to the contrary.
    “Everything but foul play, it seems.”
    @ 24m 08s
    April 29, 2026
  • Surveillance Footage Revealed
    New video shows Melissa walking away, raising questions about her disappearance.
    “She was just there 1 minute, gone the next.”
    @ 35m 41s
    April 29, 2026
  • Melissa Casillas: The Other Side
    Mark Cassias presents a narrative that contradicts the initial assumptions about his wife’s disappearance.
    “Mark's version reads like a completely different book.”
    @ 38m 47s
    April 29, 2026
  • Family Feuds and Search Efforts
    The divide between Melissa's family and her husband's side complicates the investigation into her disappearance.
    “The tension between the two sides goes way beyond the investigation.”
    @ 46m 55s
    April 29, 2026
  • The Role of Technology in Disappearance
    The wiping of phones adds a layer of mystery to Melissa's case, raising questions about her intentions.
    “You don't wipe your phone if you're just going to go on a walk.”
    @ 56m 53s
    April 29, 2026
  • The Mysterious Disappearance of Melissa
    Melissa's case raises questions about her sudden disappearance and the theories surrounding it.
    “Melissa would not willingly abandon the daughter that she loved so much without a word.”
    @ 01h 04m 33s
    April 29, 2026
  • Sticking My Neck Out
    Amy Eckridge emphasizes the importance of taking risks for awareness in her powerful statement.
    “The reason I stick my neck out is because at least if my head gets chopped off, people will take notice.”
    @ 01h 15m 54s
    April 29, 2026
  • The Unraveling Mystery
    The investigation into Melissa's disappearance reveals new twists and uncertainties.
    “Every time I think I have a handle on it, something shifts.”
    @ 01h 27m 35s
    April 29, 2026
  • A Shared Desire
    Despite differing opinions, everyone involved in Melissa's case just wants to find her.
    “They just want to find Melissa.”
    @ 01h 28m 37s
    April 29, 2026

Episode Quotes

  • This is the story of Melissa Casillas.
    The Case of Melissa Casias and the Erased Evidence
  • Everything but foul play, it seems.
    The Case of Melissa Casias and the Erased Evidence
  • There's a whole 'nother side to this story.
    The Case of Melissa Casias and the Erased Evidence
  • You don't wipe your phone if you're just going to go on a walk.
    The Case of Melissa Casias and the Erased Evidence
  • I keep going back to the phones.
    The Case of Melissa Casias and the Erased Evidence
  • Every time I think I have a handle on it, something shifts.
    The Case of Melissa Casias and the Erased Evidence

Key Moments

  • Introduction01:05
  • Family Tensions11:04
  • Blood Test Positive19:38
  • Surveillance Video37:20
  • Different Narrative38:01
  • Unanswered Questions57:02
  • Bizarre Encounters1:01:00
  • Unraveling Mystery1:27:35

Words per Minute Over Time

Vibes Breakdown