1. "Manipulation. Domination. Control. These are the three watchwords of violent serial offenders."
2. "When you go from an abstract idea of murder to the visceral reality, you can no longer be objective. Only when you feel the pain of those victims and their loved ones can you know the magnitude of the choice that killer made. And it's that choice that seals his fate."
3. "If what we're doing doesn't get under your skin, you're more screwed up than I thought, or kidding yourself."
4. "Psychopaths are extremely skilled at imitating human emotions. It's how they manipulate other people, or how they gain power over their environment."
5. "What else is a criminal except somebody who can't function in society?"
6. "It's a riddle, but it can be solved. It's complex, but it's human."
7. "In reality, when you stab somebody, they lose blood pressure and they leak to death, very slowly."
8. "Passenger seat's not the best way to transport a corpse, I'll give you that."
9. "Personality and character far outweigh the presence of psychotic or defective diagnoses. In other words, by extrapolation, are criminals born or are they formed?"
10. "You see, Bill, I knew a week before she died I was gonna kill her."
11. "Imagine, like truly imagine what it takes to bludgeon someone to death. The lust for control, the feeling of arousal, the decision to rape the severed head of your victim, to humiliate her corpse. How could you possibly get that from an ordinary police report?"
12. "You get onto a crowded elevator, and you face the opposite direction, the back of the elevator, and everybody freaks out. They're uncomfortable for reasons they can't even articulate. But if you turn around and face the front, everybody relaxes."
13. "How do we get ahead of crazy if we don't know how crazy thinks?"
14. "I can choke down the bile, manufacture empathy—when our subjects are at least informative."
15. "So I got a claw hammer and I beat her to death. Then I cut her head off, and I humiliated her."
16. "Butchering people is hard work. Physically and mentally. I don't think people realize. You need to vent."
17. "Um, I'm teaching a class on the intersection of sociopathy and fame. People like, um, Andy Warhol, Jim Morrison. Their celebrity becomes the only thing they need to sustain their ego."
18. "The question is not only why did the killer do it, but why did the killer do it this way?"