Jeffrey Dahmer was a homosexual sexual deviant who raped, murdered and ate parts of 17 victims. Like other killers such as John Wayne Gacy, he managed to elude capture while continuing to carry out his crimes. Like every other sociopath serial killer in history he believed himself to be completely justified in his actions. Why does a Jeffrey Dahmer happen? How does a man become a serial killer, necrophiliac, cannibal and psychopath? Many of the theories would have you believe that the answers can always be found in childhood abuse, bad parenting, head trauma, foetal alcoholism and drug addiction. Perhaps in some cases these are contributing factors, but not for Jeffrey Dahmer.