This podcast looks at the top ten serial killers who reported that they suffered serious head injuries during early childhood. BTK Killer, Ramirez, and the Son of Sam are a few who may have took a turn towards evil after being injured.
https://www.spreaker.com/episode/52542755
10. Richard Ramirez
9. John Wayne Gacy
8. Alexander Pichushkin
7. Son of Sam-David Berkowitz
6. Albert Fish
5. Ed Gein
4. Glen Edward Rogers
3. Peter Sutcliffe
2. Henry Lee Lucas
- Dennis Rader
Composition of a Killer 