John Wayne Gacy was an American serial killer who murdered 33 young men and boys between 1972 and 1978 in Illinois. He lured victims to his home, often under the guise of offering them work or a place to stay, before sexually assaulting and killing them. Gacy buried most of his victims in the crawl space of his house. Known as the “Killer Clown” for his appearances at children’s parties as “Pogo the Clown,” Gacy’s crimes were discovered in 1978. He was convicted and sentenced to death in 1980, and was executed by lethal injection in 1994.