Watch John Wayne Gacy: Killer Clown's Revenge

John Wayne Gacy is confident that he cannot be caught, even as he begins dumping bodies in the Des Plaines River outside of Chicago; one of Gacy's victims survives and returns to track him down.

He was once a normal, happy child, but violent, drunken abuse from his father sends John Wayne Gacy down a dark and sinister path; he develops a fascination with dead bodies, and after he gets married and has kids, his urges can't be contained.