Original state of Illinois department of corrections document, hand signed by a psychologist regarding the psychological evaluation of Richard Speck. Dated May 23, 1974.

Richard Benjamin Speck (December 6, 1941 – December 5, 1991) was an American mass murderer who killed eight student nurses in their South Deering, Chicago, residence via stabbing, strangling, slashing their throats, or a combination of the three on the night of July 13–14, 1966. One victim was also raped prior to her murder. A ninth potential victim, student nurse Corazon Amurao, survived by hiding beneath a bed.