John Wayne Gacy: John Wayne Gacy. Self: The New Detectives: Case Studies in Forensic Science. John Wayne Gacy was born in 1942 and grew up in a working-class neighborhood of Chicago, Illinois. His father, John Stanley Gacy (1900-1969), was an alcoholic and beat him frequently during his violent rages. As Gacy grew up, he began to develop a identity crisis - doubting his own masculinity. At the age of 11, he suffered a...
