- Get sexual satisfaction from killing or "... having sex with the corpse or by mutilating or cutting off sex organs"

Hedonistic Killings

- Get pleasure from "torturing, dominating, terrorizing, and humiliating victims'"

Thrill Killers

- Want to dominate their victim, find most pleasure in this

- Remove a group of people because they are "unworthy or inferior in some way"

-  Hedonistic
- Thrill
- Comfort
- Power/control
- Mission
- Visionary

- Kill 3 or more people
- Emotional cool down period

Alvarez, Alex, and Ronet Bachman. Violence: The Enduring Problem. 3rd ed., SAGE, 2017. 