John Wayne Gacy, Jr. was an American serial killer and rapist, who was convicted of the sexual assault and murder of at least 33 boys and young men in a series of killings committed between 1972 and 1978 in Chicago, Illinois. He was dubbed “Killer Clown" because he dressed as "Pogo the clown" at fundraising events and at children’s birthday parties.
All of his victims were murdered inside his home, where they would lured to his address by force or deception. All of them were strangled or asphyxiated, except his first victim which was stabbed to death.
Gacy buried 26 of his victims in the crawl space of his home, three victims were buried around his property and the last four known victims were dumped in the Des Plaines River. Only 25 victims were identified, although forensic investigators are still working on identifying the remaining 8. There is a possibility for more murders to be linked to Gacy, although the general accepted number is 33-34 victims.
Gacy was sentenced to death for 12 killings on March 13, 1980. He spent 14 years on death row before being executed by lethal injection on May 14, 1994.
His last words were “Kiss my ass.”