The Detective and the Chewing Gum Sting

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(upbeat music) - He was a predator of women. He stopped women. He assaulted women. He looked for that power and control. That's what fed him. - He's a patient predator. - He told me how long it took him to turn the knob of the door so that nobody would hear it. - I was woken up with a knife at my throat so I'm grabbing the back of my head and said, if you scream, I'm gonna slit your throat. When you look at the crime scene photos, it's impossible not to see all the victims, how connected all of these crimes were. The crime scenes were very, very similar and the murders were very similar. - This went around her neck. - It did. - That's just terrifying. - I saw the stuff that makes nightmares. It's an image that it's as clear now as it was 47 years ago. - The women were bound the same way with electrical cords. - He used her radio alarm clock cord to bind her ankles. - What do you have here? What's this tangle of cord? - This is the ligature. Judy Weaver's telephone extension cord that was used to bind her from her neck to her wrist and then to her ankles. To me, it looked like someone took their time torturing her. - How would you describe the person who was capable of committing a crime like that? - Psychopathic, monstrous, a sadist. - He was a bogeyman. - He has no idea that you are hot on his trail. You have to get confirmation of his DNA and you hatch a plant. - We were gonna go undercover and we were gonna represent a healthy energy gum line, zolt energy gum. - The detective usually goes in with a SWAT team. You're now armed with bubble gum. Is that right? - Yeah, I got one, yeah. - So you're gonna have this gum and what? Knock on his door. - Help.
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How a clever detective caught a killer with a stick of gum. Peter Van Sant reports.