“Bill Tench: I'm sorry, Ed, do you mean that violence in the movies drove you to kill those women? Edmund Kemper: No. My point is, in reality it doesn't work the way you expect. When you stab somebody they're supposed to fall dead. They go, 'Oh,' and they fall dead, right? Bill Tench: Right. Edmund K…”
— Joe Penhall, Ruby Mae Spiegel, Bill Tench, Holt McCallany, imdb.com