Īlthough he was diagnosed with borderline personality disorder, schizotypal personality disorder, and a psychotic disorder, Dahmer was found to be legally sane at his trial.
Many of his later murders involved necrophilia, cannibalism, and the permanent preservation of body parts-typically all or part of the skeleton. Jeffrey Lionel Dahmer ( / ˈ d ɑː m ər/ – November 28, 1994), also known as the Milwaukee Cannibal or the Milwaukee Monster, was an American serial killer and sex offender who committed the murder and dismemberment of seventeen men and boys between 19. Columbia Correctional Institution, Portage, Wisconsin
