Jeffrey Dahmer was born in 1960 in Wisconsin and murdered 17 victims between 1978 to 1991. He would lure men back to his apartment and murder them by drilling holes in their skulls or strangling them. In 1991, one of his victims managed to escape and alerted police, who discovered body parts, severed heads, and photographs in Dahmer's apartment. At trial, Dahmer pleaded not guilty by reason of insanity but was found sane and guilty, receiving 15 life sentences totaling 957 years in prison.