James Urban Ruppert is an American murderer, who was responsible for one of the deadliest shootings inside a private residence in US history. On Easter Sunday, March 30, 1975, Ruppert murdered 11 family members in his mother's house at 635 Minor Avenue in Hamilton, Ohio in what has been referred to as the "Easter Sunday Massacre." He is serving two life sentences at the Allen Oakwood Correctional Institution in Lima, Ohio.