RAISING A KILLER Everything you need to know about Jeffrey Dahmer's father, Lionel
LIONEL Dahmer learned his son Jeffrey was a murderer, necrophiliac, rapist and cannibal when he was finally brought to justice on July 23, 1991. Jeffrey Dahmer committed some of the most heinous crimes on record in the US, including the murders of 17 men and boys between the years of 1978 and 1991.