Four years later in 1968, Gacy and Marilyn were living in Waterloo, Iowa where he was responsible for three “father-in-law’s Kentucky Fried Chicken franchises.” Three cases of sexual assault occurred during their stay there. One of them strangled a young man until he lost consciousness. When Gacy was arrested, he paid a high school senior to beat one of his victims in order to prevent him from testifying.
Gacy will plead guilty to sodomy and receive 10 years in an Iowa state prison. Marilyn divorced him in 1969, taking their two children with her.