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Good evening. I'm Nancy Grace. Tonight, three women fall victim to violent sex attacks,
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and then a 30-year search for their attacker. May 1992, Sacramento, a woman subjected
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to a terrifying, violent rape inside her own home. They were going off of a 20 to 40-year-old
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white male wearing a ski mask. NANCY GRACE: A full-on investigation launches. But in spite of evidence, no perp is identified.
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We had no fingerprints, nobody who could identify. So we did not have much in the beginning
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to eliminate somebody. NANCY GRACE: March 1994, evidence links another attack with a similar MO.
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She said that she mentally prepared herself that she was going to die. NANCY GRACE: Law enforcement searches for the attacker,
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but once again, he evades detection. They had fingerprinting, blood typing, serology.
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But they ultimately ran into a dead end. This is the story of three women, three survivors
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of vicious sex attacks, and how bloodline detectives finally capture a serial rapist almost three decades later.
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This is "Bloodline Detectives." [THEME MUSIC] May 5, 1992, a woman viciously attacked when she comes
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home from work in Sacramento. She is early 50s. She's an administrator at a local hospital.
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And she's working late because she's at a meeting. So she comes home about 8:30.
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It's a single-story, single-family residence, three bedroom, two bath. SHAUN MCGOVERN: She had a home alarm system.
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So she had deactivated the alarm when she first arrived home. She enters a hallway and is on her way to the master bedroom
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when suddenly she is struck in the face and by a man. She knows it's a man because of the height and the strength.
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And she sees that this person is wearing a ski mask. She sees, because of the holes in the ski mask
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around the eyes, she can see that there's white skin. And she sees a knife. He pushes her down to the ground.
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And the entire time, he's verbally abusing her. He's telling her he's going to kill her.
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He's telling her he's going to hurt her. He's telling her he's going to cut her head off.
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NANCY GRACE: She struggles and puts up a fight, but she's quickly overcome. Like many people, her instinct was to fight.
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And so initially, she did fight. And ultimately, he slammed her against one of the walls,
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causing an injury to her head. MICHELLE HENDRICKS: With head wounds, they bleed profusely.
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So she is trying to figure out what has happened, because he gets her on the ground
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and immediately he flips her over onto her stomach. He binds her wrists and he binds her ankles.
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Then he keeps her on the ground for a minute and he disappears, comes back with tape,
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and starts wrapping the tape around her eyes and her mouth. After he does, that he puts a pillowcase on her.
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This entire time he's berating her, telling her he's going to commit violence against her, telling her he's
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going to kill her. So she tries to get herself composed. He picks her up and walks her backwards down the hallway
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to the master bedroom. He shoves her onto the bed. Now, at this point, her hands and feet are bound,
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she's got tape around her whole head, and she's got a pillowcase on her face. She can kind of make out shadows and dark and light.
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So she can kind of track where he's going in the room. Then he proceeded to cut her clothing off
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with a sharp object. And then he sexually assaulted her. He asked for money. He demanded money.
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He spent a lot of time rummaging around in her house. MICHELLE HENDRICKS: Then she tells him that she
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needs to use the restroom. She uses the toilet as she is bound, hands, feet, and her head covered with pillowcase.
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She needed to clean herself. And she asked him if he would untie her hands so she could do that.
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And he didn't answer her. The next thing she knows is she hears the water in the tub next to her running,
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I'm sure she thought that her end was near and that he was ultimately going to kill her.
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But she was just trying to survive this ordeal and get herself out alive. MICHELLE HENDRICKS: He puts her, picks her up from the toilet,
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and puts her in the tub. After washing her for a bit, he makes her stand up. And he makes her turn in quarter turns as the water hits her.
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And she has to do that twice. She could feel his hands on her. And she determined that he was wearing some sort of gloves.
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She felt they were fabric. He gets her out of the tub, proceeds to walk her back to the master bedroom.
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He dries her off in the bed. Then he proceeds to untie her feet. He retires them to the bed frame and he,
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again, sexually assaults her. He was in the house for several hours. He would sexually assault her.
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He would leave, ransack through the home, looking for property. This was kind of a pattern throughout the time
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that he was there. MICHELLE HENDRICKS: After all of that, he asks her, if I retire your hands,
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will you be able to get out? She didn't know what that meant. He proceeded to untie her hands from behind.
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He ties him in front of her. And she felt like he tied them a little looser than previous.
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So he asks her again. And he said, do you think you could get loose if I leave you this way?
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And she tells him yes. And then he tells her, don't call the cops, because if you call the cops, I will come back
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and I will kill you. Then he asked some questions about religion, are you religious?
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And she says yes. And he asked her what religion she is. And she tells him. And then he says, I'm going to leave.
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You wait 10 minutes. So she waited. And she was able to free herself from the bindings.
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She had to cut the leg ties off because she couldn't undo them. She was able to call her daughter, who
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came over with her son-in-law. And they're the ones that called the police. NANCY GRACE: Detectives and a forensic team
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launched their investigation of the crime scene. ANNE MARIE SCHUBERT: They meticulously
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collect evidence, taking photographs, documenting that crime scene. Sometimes people need to remember that when you collect
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evidence, you don't know where that future of that evidence goes. We don't know what technology, where it will bring us.
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But you always have to have it in mind that you have to be meticulous in your collection
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so that maybe someday, we can use some of this evidence in a way that's never been done before.
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Searching the home, investigators determine how the attacker entered the home. MICHELLE HENDRICKS: One of the detectives
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realizes that there is an attic dormer. There's two on the roof. And it looks as if they're damaged.
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So that leads them to look in her master bedroom closet, where they see that the attic access panel is askew.
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It's not properly seated in the roof. NANCY GRACE: The victim gives a full and complete description
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of the attack to officers. The victim, even though she was injured and even though she had been traumatized,
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she had the intestinal fortitude and the strength of character to show them where everything happened.
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And then ultimately, when she was taken to the hospital, had an examination done.
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MICHELLE HENDRICKS: She had two lacerations behind her left ear that bled. She also had circular and linear abrasions
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around both her wrists. She talks with the nurse and she explains what happened to her,
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and because where that story leads the nurse is where the evidence is swabbed for.
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So it's always very accustomed exam. So photographs are taken of all injuries. And then some of the photographs can be pretty invasive.
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We ask a lot of crime victims, particularly sexual assault victims and survivors, it's a necessary step for us
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to find the perpetrators. But it is so invasive to them that I have no doubt it's something they
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never forget through the course of their lives. AMY HOLLIDAY: Things were different
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then than they are now. Now we have doctors and nurses who are trained specifically
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for this type of examination, who I think know how to handle it a little bit better emotionally, whereas back
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in the '80s and '90s, it was handled by whatever doctor or nurse was on duty. And so I think that it's not approached
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the same then as it is now. But I think she understood and appreciated that it was necessary in order to potentially
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catch this person. NANCY GRACE: Investigators began to canvas the neighborhood. The patrol officers did canvas the neighborhood.
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They spoke to many neighbors, looking for anyone who had seen or heard anything, anyone unusual
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in the neighborhood, anything out of place. And no one really reported anything significant.
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There was not any surveillance system. This was before home surveillance was as popular as it is now.
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NANCY GRACE: The quiet Sacramento neighborhood is reeling from the sex attack. And investigators begin their search for the perpetrator.
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There were no leads or suspects. There was a lot of follow-up on tips that did come in of oh,
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this person was in the area. That person was in the area. In fact, someone was arrested that they thought
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was responsible for the case, who was ultimately cleared by DNA evidence. The investigation goes on nearly
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two years with no solid leads. Then, March 1994, the same perp strikes again. That's next on "Bloodline Detectives."
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March 1994, Sacramento Police investigating an extremely violent, sexually-motivated home
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invasion. They have very few leads, and then a call about another attack. I received a call advising me of a serious sexual assault
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that had just occurred. I responded to the hospital where the victim had been taken.
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NANCY GRACE: The woman, bloody and dazed, describes her ordeal. MICHELLE HENDRICKS: She comes home from work.
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She enters through her garage. She sets her stuff down. She's walking through her house.
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And all of a sudden, she is viciously physically attacked by a subject wearing a mask.
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She did initially try to fight back. When she did fight back, she was struck in the head
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by a hard object, ended up with a skull fracture in two locations on her head. He was in the house for a pretty good amount of time
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prior to the attack because he had already cut cords for binding. He knew what he wanted to do.
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AMY HOLLIDAY: He sexually assaulted her on the couch in the living room multiple times and then left her there,
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ransacked through the home, demanded money, was asking for other property within the home,
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then took her into the bedroom and sexually assaulted her repeatedly there as well.
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NANCY GRACE: The attacker also forces his victim into a shower. He fills up the bathtub and then tells
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her to sit in the bathtub. And he loosens her bindings, asks her if they're loose enough for her to get
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out if she wanted to get out. AMY HOLLIDAY: She wasn't sure if he had left the house or not.
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And so she was able to untie herself in the bathtub and get out. She grabbed a towel.
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She grabbed her car keys, fled out the back of the house, got in her car, and drove to a friend's house.
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She actually drove the car up on the lawn of the friend's house and got out with nothing but a towel
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on and ran and pounded on the door. NANCY GRACE: Evidence is collected from the survivor
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and from her home. When I arrived at the hospital, she was being treated in the emergency room.
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And I learned that the towel that the victim sat on in her vehicle was at a friend's house.
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It was left there. And I responded over there and met with the friends and retrieved the towel for possible evidence.
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When I went to the residence, I was able to retrieve the cushions off of the couch were part of the sexual assaults had occurred.
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AMY HOLLIDAY: They seized the bedding where she had been sexually assaulted and also the items that were still
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in the bathtub, clothing and some other sheets that were in the bathtub. They immediately canvassed the neighborhood.
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They talked to many, many neighbors to see if anyone had seen anything. There was a few leads initially of people who'd been seen
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walking in the area repeatedly. So that type of information was turned over. But the investigation cleared all of those people.
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NANCY GRACE: The woman describes the attacker as having blue eyes, but she can't
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provide any further detail. By his voice, she estimated that he was young, educated.
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NANCY GRACE: DNA confirms what investigators already know, both attacks carried out by the same man.
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When it became known that this case matched the County case that happened two years earlier,
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we knew then that this was a serial rapist. And that then generated more work, because the question then became, what is the commonality
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between these two women? Why is he picking these women? Is there something? Is it somebody that services both their homes?
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Is it an electrician? Is it a painter? Is it a landscaper? All of those things were run down.
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Questionnaires were filled out. I remember very distinctly myself and another prosecutor in my office
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sitting down with these victims, trying to find any kind of common thread between either one of them.
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Did they go to the same dry cleaners? Did they take their cars to the same mechanics?
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All of those questions were being asked by law enforcement and those of us that were trying to understand,
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was there a common connection that could lead us to the perpetrator? 2000, six years after the initial attack,
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Anne Marie Schubert contacts Detective Pete Willover about using a new forensic weapon
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to catch the serial rapist. PETE WILLOVER: Anne Marie Schubert, by this time, was working sexual assaults with the District Attorney's
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Office in Sacramento County. And I had worked numerous cases with her. She had asked me if we had any unsolved cases that might be
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good for a new idea that she had read about, where we could get a warrant on just
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the DNA alone, which would then put a freeze on the statute of limitations. ANNE MARIE SCHUBERT: At that time in California,
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we had to charge somebody with a crime, a sexual assault within six years of that crime occurring.
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Around that same time, I happened to see an article in the newspaper about a prosecutor
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in Wisconsin who had charged what we call a John Doe warrant, meaning they didn't know who was the perpetrator,
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but they had their DNA. So when Pete Willover called me that day, I said, you know what?
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Let me do some research and see if there's something more we can do here. We did a lot of research, collaborated
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with colleagues in the office. Some people said absolutely not that I talked to.
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And then when we did the research, I felt strongly that we had the right legal grounds to charge
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somebody, even though we didn't know who they were, with these horrific crimes, so that we
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could preserve what we call the statute of limitations. We made a decision after doing DNA testing to charge People
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versus John Doe and charge his genetic profile as his description. We just knew that we needed to keep those cases alive
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so if and when someday we figured out who this guy was, we could prosecute him. So there was still probably uncertainty
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for them, because they didn't know if it would ever-- if it would ever work or are we
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ever going to catch the guy. But I'd like to believe they felt some sense of relief
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that there were people out there that were still fighting for them, supporting them, and advocating for them.
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NANCY GRACE: With this groundbreaking arrest warrant issued, the case is reinvigorated.
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We did a familial search through California DOJ, no familial search, meaning that nobody
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in our convicted offender database was related to this offender. We had this DNA put into what called CODIS or DNA
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Databank, no hits on that. Investigators get no new leads until 2013, when with advanced DNA profiling,
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another attack is linked to the same perpetrator. It's 2013. Detectives in Sacramento hunting a serial rapist.
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They've got very few leads. Then they learn about a third attack linked to the same perp.
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I was notified that our two cases matched a city case in the county, and then another one
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from Yolo County. And that was completely different than the other two. It was a college student at the time who was out jogging.
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She was attending the university in that town. She went down jogging near what's called
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Cowell Boulevard in Davis. It's a busy area. It's a well-developed area. And she was running towards the Nugget Market,
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one of our local chain markets. She was distracted while she ran near a field. She instantly realized he was wearing a mask
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with eye holes cut in it. And she knew pretty quickly that his intentions were bad.
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And he essentially hit her with a stun gun of some sort. She felt electric pulsing and was shocked, disoriented.
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He physically grabbed her and essentially pulled her off the roadway where she was running
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and said, "Shut up, bitch," and "Give me your money." He was talking about how he had a friend in a car who
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was going to be joining them and just scared the daylights out of her. From there, he has to get on the ground.
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She starts to fight a little bit. And he grabs what she believed was a rock, hits her and bashes her on the head until she
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stopped fighting again. MICHELLE HENDRICKS: He drags her a pretty great distance.
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He tries to sexually assault her. And she's begging him not to do it. And she's telling him that she's menstruating
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and that she has a tampon in. And he decides to tell her that that's not the case.
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Well, she keeps talking to him. And he ends up not raping her, but he does sexually assault her.
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For some reason, this victim was able to talk a lot to him. She talked about her life and she talked about her family
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and she talked about her religion. And for some reason, that resonated with him, because he
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engaged her in conversation. He told her what he had done to her was going to be a lot worse than what he had done to her.
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But he felt like she was a Christian person. He left her there, torn clothing. And she was able to get home and get some friends
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and call the police. SHAUN MCGOVERN: They ended up doing a canvas of that area. There was a Davis detective that actually tracked down the shoe
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prints that were in the dirt. And they were able to photograph those shoe prints
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and figure out where he had started and where he had ended. He kind of track them and figured
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out the whole crime scene. So they were able to lock that down and try to gain as much evidence as they could from that scene.
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PETE WILLOVER: Both newspapers and TV put out a lot on this case. And I do recall getting a lot of tips.
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But we had no fingerprints, nobody who could identify. So we did not have much in the beginning
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to eliminate somebody. NANCY GRACE: The serial rapist is still lurking out there,
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waiting to strike again, when investigators decide to use a new crime-solving weapon,
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forensic genetic genealogy. Here's how genetic genealogy works-- in this case, investigators pick up
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the rapist's DNA samples from three separate rape victims. Even with that DNA, they cannot find
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a match in the National database, CODIS, for possible suspects. What genetic genealogy does is expand the search.
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The samples police already have may not match known suspects. But the database may identify distant relatives
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of the rapist, relatives that could ultimately lead investigators to the perpetrator.
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The concept is you have DNA from a crime scene. We don't know who it belongs to.
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We've done everything we can to figure it out. You then take that DNA and you send it
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to a laboratory to develop a special kind of DNA profile called a SNP. That gives us thousands and thousands
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of points of information. That SNP profile, then, is uploaded to a public genealogy site.
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Just like if I was adopted and I wanted to figure out who my biological parents were, I would get my DNA,
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I'd do that SNP, and I'd upload it. And then I'd start looking to see, OK, who are my relatives?
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And that's what the tree building is all about. And that's where it can become very, very
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complex because sometimes you have affairs. Sometimes you have adoptions. And that makes things even more difficult.
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Every case is different. And everyone, every case stands on its own. But the tree building of trying to figure out
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who are the parents of this rapist, who are the cousins, who are the first cousins
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and the second cousins, and that's where law enforcement and science marry up. NANCY GRACE: Officers send the evidence
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to a special laboratory to develop a DNA profile suitable for genetic genealogy searching.
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When law enforcement collected evidence, they collected a cushion, a seat cushion.
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And ultimately, our crime lab tested that, found semen, and was able to develop a genetic profile.
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And we ultimately were able to use that stain from that cushion to get what we call a SNP
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to be able to do the genealogy. NANCY GRACE: A task force is created to push these cases forward.
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MICHELLE HENDRICKS: I knew about that it was in the hopper, getting worked on, and that Shaun McGovern and the police
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department were, along with the DA's Office, were working on the genetic genealogy aspect.
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We had a meeting. We game planned a couple of things. We still didn't have a name.
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NANCY GRACE: February 20, 2019-- investigators finally discover a link from a family tree.
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Could this be the match that finally leads them to a serial rapist? That's next on "Bloodline Detectives."
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Over 30 years after a serial rapist stalks victims in Sacramento, police are using a new forensic weapon
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to ID the perp. The weapon? Genetic genealogy. And it identifies a suspect. SHAUN MCGOVERN: We get a hit on the closest ancestor,
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which a lot of these databases it could be an email and a nickname. And so we have to find out who that person
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is, because that's our start. So we have our suspect over here and we have our ancestral hit over here.
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And gauging by how closely they're related, we calculate how far up the tree we have to go.
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So in this circumstance, we had a lower hit. And so we had to go up approximately four generations.
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And then we have to branch out. When we started working the other ancestor, we found out that we had the other tree.
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So we had the paternal side and we had the maternal side. And so the paternal side, I worked on the paternal side,
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didn't know it at the time, but got to about 600 plus names. And then Kirk Campbell and Monica Czajkowski
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from the DA's Office, they ended up working the other tree. And they had over 600 names on that tree, too.
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And ultimately Monica was reviewing my tree against their tree and saw a common last name,
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which was unique, Manteuffel. The name that they came up with was Mark Manteuffel.
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NANCY GRACE: Detectives start investigating Manteuffel's background. MICHELLE HENDRICKS: One of the things we found out
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was in the early '80s, he was a security guard, loss prevention for Kmart. He went to Sac State for a little while.
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He was a lecturer there. He became a federal correctional officer in 1991. And he worked for the federal system until 2011.
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And he retired as an assistant warden. AMY HOLLIDAY: We were aware that he had lived in Southern
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California, Oklahoma, Florida, Georgia, and some other Southern states before we
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ever knew where to find him. When the advent of DNA technology and its use in the justice system
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became very public and known, I think he was worried about that, because he wasn't careful
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when he committed these crimes. And I know that he was worried, because after his retirement
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using fake addresses, using what we call burner phones, the phones you can get at the drugstore and throw away.
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So he was worried about people tracking him. He had no presence on social media and very limited
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information that family members, past coworkers had about him. And so I think he was worried.
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NANCY GRACE: Confident they've identified the perp, cops launch a search for Mark Manteuffel.
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He's in California up until about the 2000s. And then he's scoots over to the East Coast.
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And that's where his presence is over there. But he doesn't really have any information
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about where he was living. He was living out of PO boxes. So most of his references were PO boxes,
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which when we dug into those PO boxes, they had hotel addresses or trailer park addresses.
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So who knows if he was actually living at those locations or if he was just providing a fraudulent address for the box.
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But at one point, he had 13 different PO boxes spread across about three or four different states.
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Ultimately, the information that we had had placed him in Decatur, Georgia within about a year or so of when
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we started looking for him. So we had a good indication of where he was at. And that's where we requested the assistance of the FBI.
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NANCY GRACE: June 2019, the FBI locates Manteuffel and follow him to a restaurant.
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They ended up having a surveillance team following Mark Manteuffel. AMY HOLLIDAY: Some of the FBI people
00:31:15
were inside the restaurant. They watched him. He drank from a wine glass. He sipped water through a straw at the restaurant.
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And when he left the restaurant, they collected those items of evidence. SHAUN MCGOVERN: And they protected that evidence, keep
00:31:31
it from being contaminated. And they ultimately shipped us to us as soon as possible.
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So I ultimately got a phone call about a day and a half or two days later from the FBI saying that the evidence was here,
00:31:45
that it was ready to get picked up. And I immediately drove up there and brought it back
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to our crime lab. NANCY GRACE: The local district attorney's crime lab calls investigators with the results.
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We found out in just a few days that it was-- we had the right person. It was Mark Manteuffel.
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NANCY GRACE: On June 28, 2019, an arrest warrant finally issues for Mark Manteuffel.
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We got the word from the FBI that they were going to attempt to arrest him on a Friday.
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So some of the detectives left Thursday morning. I left with another group of detectives Thursday
00:32:26
night in hopes that we would get there in time for the FBI to arrest him in the morning.
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SHAUN MCGOVERN: Mark Manteuffel started to pull out when the FBI had an arrest team.
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And they ended up surrounding him in front of the driveway there. From there, he was taken out of the car and put in handcuffs.
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The physical evidence is collected. The DNA is matched. But now investigators must confront the suspect.
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Will the suspect, Mark Manteuffel, admit to the crimes? We find out next on "Bloodline Detectives."
00:33:14
June 2019, Sacramento investigators interview Mark Jeffrey Manteuffel about three violent rapes
00:33:22
he carried out in the 1990s. I observed the interview. Detective Hendricks and Detective McGovern
00:33:30
conducted the interview. He was pretty quiet. He wasn't asking us why he was there.
00:33:36
He was more of just going with the flow. He talked a little bit about teaching at the school and his time there at Sac State.
00:33:47
As we started talking to him, it seemed like he was kind of fishing for what our case was
00:33:52
or what evidence we had against him. NANCY GRACE: Officers confront him with overwhelming DNA evidence.
00:34:00
When he was provided the information about the cases and why we were there, all he kept saying is,
00:34:07
I don't know what to say, over and over again. An innocent person would deny to high heaven
00:34:15
that they had anything to do with it. And all he kept saying was, I don't know what to say.
00:34:20
I don't have the words. I was disgusted more than anything, because look at what
00:34:27
you're dealing with right now. He's a 60-something year old man who, by all rights,
00:34:34
had a successful career to where he was able to retire in a pretty prominent position as an assistant warden
00:34:40
of a federal facility. He had a degree. He held down jobs. He was obviously in a relationship.
00:34:49
And when you're confronted with what you did, your answer is I have no words? That's despicable.
00:34:58
NANCY GRACE: Manteuffel formally charged and extradited to Sacramento. He was charged with sexual assault,
00:35:05
sodomy, kidnapping for the Sacramento case. GARRETT HAMILTON: The attacker in this case
00:35:12
benefited greatly from the years that he committed these crimes. Much later, in 1994, the laws in California
00:35:19
changed dramatically, increasing the sentences for various types of sexual offenses.
00:35:25
The assault in Davis was about 10 months before those laws became in effect. And as a result, even though sexual assaults
00:35:36
did occur in Davis, the only crime that I could charge in the case was kidnapping with the intent
00:35:43
to commit robbery, not rape. NANCY GRACE: The survivor of the second Sacramento rape attack
00:35:53
on C Street is terminally ill. She's only got months to live. Then she is granted a conditional exam.
00:36:05
That's when a material witness who could be unavailable to attend the trial as allowed to give evidence direct to cross-examine out of turn.
00:36:19
AMY HOLLIDAY: A conditional exam is usually videotaped. It's just like a trial without the jury there.
00:36:25
So the judge is there, the court reporter, all the court staff, the defense attorneys.
00:36:30
The defendant is there. This is their opportunity to ask any questions that they want of her as well.
00:36:38
This was the victim where the John Doe warrant really applied. All of the charges were still available to us.
00:36:45
And I knew that if we didn't get the conditional exam and if she passed away before the case was resolved
00:36:51
or went to trial that we were going to largely be out of luck. NANCY GRACE: Tragically, the C Street survivor passes away.
00:37:03
But facing multiple life behind bars sentences, Manteuffel agrees to a plea deal just before trial.
00:37:12
AMY HOLLIDAY: All the original detectives were there. I didn't know they were coming.
00:37:15
And they were all there-- Detective Willover, Detective Links, Detective Simmons,
00:37:21
and then all the new detectives as well, ones that had worked on the case more recently.
00:37:27
PETE WILLOVER: Eventually he pled guilty. And I did attend that hearing where he pled guilty
00:37:36
and was able to hear him admit his guilt to all of the counts. NANCY GRACE: Showing great courage and much strength,
00:37:47
Jane Doe number one goes to court and confronts her attacker. The 1992 victim and her family made a victim impact statement.
00:37:58
And then a friend of our 1994 victim in Sacramento also made a statement. What they spoke about was really how it's affected their lives,
00:38:10
the fact that they were grateful to law enforcement for solving the case, for not forgetting about the case.
00:38:17
The women that were assaulted in this case, if you met them you would know that they are
00:38:23
extraordinarily brave women. And to go through this 25, 27 years earlier, and then to go through it again once this guy was caught
00:38:33
is really extraordinary. And to have the fortitude to not just relive what happened,
00:38:38
but to confront him in a courtroom and tell their story is-- it is really truly remarkable.
00:38:45
NANCY GRACE: On October 23, 2020, Mark Manteuffel is sentenced to 29 years for two attacks in Sacramento.
00:38:54
Six weeks later, he appears in Yolo County Court for the attack in Davis County.
00:39:00
There, he's sentenced to another six years behind bars. Two of Mark Manteuffel's survivors
00:39:11
finally know the person responsible for their brutal rape is behind bars. The impact of his crimes will never be forgotten.
00:39:23
One of them speaks clearly about how her rape no longer will control her life. The victim in Davis decided this event was not
00:39:36
going to define her and that whatever control he exercised over her during the attack and whatever
00:39:46
control that had over her emotions and trauma in the years later was gone and that he
00:39:53
no longer controlled her. And she spoke very powerfully about that. NANCY GRACE: After nearly three decades
00:40:03
of dogged detective work, this case is finally closed. Genetic genealogy is that next fingerprint.
00:40:14
It's that next thing that's going to revolution-- it already is. ANNE MARIE SCHUBERT: Every day I can guarantee you that there's
00:40:22
somebody in the Sheriff's Department, the Police Department, and our office that
00:40:26
are working together to try to solve more of these crimes with this tool. NANCY GRACE: If it were not for genetic genealogy,
00:40:35
Mark Manteuffel would never have been identified. He would never have been prosecuted
00:40:40
for three vicious attacks. Painful as it may be, once again, bloodline detectives
00:40:48
bring closure. And for those who have committed sex assaults and think I'm safe, no one's coming for me, think again.
00:41:01
I'm Nancy Grace. Thank you for joining us here on "Bloodline Detectives." [THEME MUSIC]