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[Music] When you're dealing with a 30-year-old cold case, it seems like there's not a lot of hope.
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It's a great photo of Robin. Mhm. But look what happened in the Robin Lawrence case.
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Something sparked it. >> That nobody ever expected. It just caught everybody off guard.
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[Music] Her husband Ali had been trying to reach Robin all weekend. Ali was out of the country.
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Who else was in the house? Nicole. Her baby. Well, Ali contacted me. He said, "Would
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you mind going over to the house and checking on her?" I was like, "Yeah, sure."
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There's no answer at the front door. So, went around to the back. So, when you go around to the back deck,
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what do you notice? That the window screen is cut. That was the first time I thought, "Oh
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my god, something is wrong here." I had to climb in through the window, and Nicole comes, you know, down the
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hall. Her eyes were just so big, and her little face was just there's no expression on it.
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I'm going down the hall, and I can see into the master bedroom, and I can see on the wall these
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large splatters and swaths of blood. I was terrified, and I went and I called the police.
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[Music] There was a very, very violent attack on Robin. She was stabbed 49 times.
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It looks like a personal attack. It looked like Nicole had been kind of roaming around the house.
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Clearly, she had been in that room with her mom. It's hard to think about. It's like a horror movie, but it's not a
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movie. This is our family. This is our lives. This was Robin's life. I did think that maybe it was someone
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she knew. That always kind of sat with my mind, like who did she know that could have done this?
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Here's the photo of the washcloth where The key piece of evidence is a washcloth
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that they find in the bathroom, and it has blood on both sides. I knew that we had a really strong DNA profile, which
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obviously stood out. So, detectives just kept waiting to get that phone call from the lab saying that
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we have a match. And unfortunately, that call never came. And then just another year would go by,
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and another year would go by. So, you would switch tracks and try what we call genetic genealogy.
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And that was becoming really big at that time. That's when we turned to the help of a
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volunteer, and she said, "Genealogy is a hobby of mine. I dabble in it on the side. I'd be willing to do
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this case for free when I have spare time." I knew it was going to be a needle in
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the haystack, but I thought it was worth trying. >> Six, seven, eight, nine, 10 generations
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away from even these people. And I think it's August of 2023. She sends me an email. She says, "I think I found
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someone of interest." What happens as you start looking into him? Well, we find out computer
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programmer up in New York, married to a defense attorney, two kids in high school, nice house in the suburbs, not
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so much as a speeding ticket on his background. I am a serial killer who's only killed
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once. [Music]