John Wayne Gacy: A Real Life Nightmare | World’s Most Evil Killers | Real Crime

John Wayne Gacy murdered 33 boys and young men during a six year period in the 1970s; he was well-liked in the community he lived in and would often dress up for kid’s parties, earning himself the nickname Killer Clown. From “World’s Most Evil Killers“ Content licensed from Keshet to Little Dot Studios. Any queries, please contact us at: owned-enquiries@