Do all serial killers start off killing animals?

Animal abuse is often the first manifestation of serious emotional turmoil that may escalate into extreme violence, such as mass killing. ... “Boston strangler”), David Berkowitz (the “Son of Sam”) and Carroll Edward Cole, a serial killer accused of 35 deaths, all recounted animal torture as their first violent act. read more

Again, not ALL serial killers start by killing animals. Jeffrey Dahmer, the "Milwaukee Cannibal", didn't hurt animals, and claimed to be upset when animals were hurt. He did, however, admit to being fascinated with the inner workings of animals and taking road kill home. read more

This list features the serial killers that have openly admitted to hurting and killing animals. read more