- Narrator: On Seattle's strip, the Green River Killer had found a rich hunting ground that would enable him to amass a body count unrivaled by any serial killer in American history.
- Herself - Forensic Psychologist: To every serial killer, human beings are objects. There's no emotional connection. There... there's nothing there.
- Herself - Author 'Green River Running Red': Like all serial killers, um, he seemed to have this... the ability to sense vulnerability in... in potential victims. Uh, he didn't take the streetwise girls. He was looking for, um, the younger women.
- Herself - Forensic Psychologist: All serial killers have the ability to appear so normal that they throw off even people who are considered experts. The serial killer is the Olympiad of the pathological liar.
- Himself - Former FBI Profiler: [about serial killers] They learn from their crimes. As their murders grow in number, their efficiency increases.
- Herself - Former Detective Green River Task Force: The remains were being found in secluded, quiet, dark areas.
- Narrator: That summer, five girls went missing.
- Himself - Former FBI Profiler: By the time they're up to five or six or ten homicides, they become very difficult to catch.
- Himself - Defence Attorney: I'm walking down a corridor and I'm gonna open the door and be introduced to the supposed Green River Killer. A hundred things are going through your mind and wondering what is it gonna be - mean, is he going to be crying, is he gonna be crazy - and I walked in and-and, like, wow, this isn't what I expected.
- Unidentified Man: [from archive footage] All right?
- Gary Ridgway: [from archive footage] Pretty good.
- Herself - Attorney, Prosecution Team: All of us kind of looked at each other and said, "That's the guy that's been eluding everybody for twenty years?"
- Himself - Defence Attorney: What was remarkable was that he was... he was... so normal.
- Himself - Defence Attorney: If you did not know what he had done, you would like him. The monster within him was well-hidden.
- Himself - Forensic Psychologist: [on people's expectations of serial killers] People want to ascribe, um, extraordinary traits and qualities to these people. These are, for the most part, very ordinary individuals except for the extraordinary crime that they get involved in.