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500 C police department, can I help you? >> I just got home and the door was open and I walked in
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and I think she my girlfriend has been shot. >> Where was she shot at? >> It looks like the head.
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>> Did you see who did it? >> I don't know. I can't go in >> This victim resided in an apartment
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inside the building. Uniform officers had already been there. The first thing we do is we're going to
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go in and we're going to see where our victim is. My name is Mark Biandolino. I'm a
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retired homicide detective from the city of St. Louis and I investigated the murder of Jocelyn Peters [music] from
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March 24th, 2016. >> This isn't someone who would accidentally leave a door [music] open.
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She was responsible, one of the most responsible people I knew. It just didn't make sense.
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>> She was a strong force, fierce advocate for children, loved them dearly, and everyone was going to succeed in her
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classroom. She always wanted to do the next best [music] thing. In her free time, she was always checking out what
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she could do differently to meet the kids' needs, what programs there were out there.
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>> There are only three to four full-time art teachers at the middle school level.
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>> She'd bust into my office, "Hey, I need you to come to my classroom today. I've
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got some magic going on >> [music] >> and you need to come and see it." The kids were learning and she cared about
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each one of them and whatever they needed, she gave that to them. >> First person that we're going to speak
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to is the person that discovered her. >> And this is Cornelius Green. >> Correct.
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>> She truly, truly fell in love with them, honestly, and we all did. He was a principal, he was kind, he was generous.
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I mean, he was very attentive to our needs. >> He voluntarily goes down to the police
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headquarters. >> You're in Chicago since Tuesday? >> Yes, sir. >> And then you come back today
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at 2:57 p.m. >> Yes, sir. I got to the Amtrak at 2:57. >> How did you get to the train station?
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>> My brother drove me over there. >> Your Phillip? >> Yes. >> We identified Phillip [clears throat]
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Cutler as brother. Was the person who was transporting Mr. Green to the Amtrak station.
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Picking him up when he arrived back in town. Other investigators from the homicide
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unit were able to go out and [music] pick up Mr. Cutler to conduct an interview.
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Detective Harrisburg advised him we're going to speak to you regarding [music] this homicide that occurred today. After
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hearing the word homicide, he stands [music] up, he lets out a big sigh, and then he reaches into his back pocket
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and retrieves a notebook. He thumbs through several pages, tears out a piece of paper,
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and then he immediately puts it into his mouth and begins chewing it. >> [snorts]
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>> Whatever was on those two sheets of paper, he immediately wanted to get rid of.
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>> There's another sort of loose end in this case, [music] too. >> Yes. We identified immediately organic
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materials [music] splattered about in the headboard and around her pillow and then along the floor.
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>> What did that turn out to be? >> We identified that as being [music] fragments from a potato. Like
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what do you think? Like a baked potato? >> This case is baffling. My name is Tiffany Becker. I'm a retired
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Assistant United States Attorney for the Eastern District of Missouri. I couldn't believe
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the depravity of the crime itself. >> Hey, do you ever been involved in a case like [music] this before?
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>> Nothing like this.