Thursday 20th of January 1972 (-) — Victim of John Wayne Gacy aka The Killer Clown John Szyc is killed by John Wayne Gacy aka The Killer Clown
Szyc was lured to Gacy's house on the pretext of selling his Plymouth Satellite to Gacy.
Sunday 2nd of January 1972 (-) — Victim of John Wayne Gacy aka The Killer Clown Timothy Jack McCoy is stabbed to death by John Wayne Gacy aka The Killer Clown
Gacy picked up McCoy from Chicago's Greyhound bus terminal.
Thursday 31st of July 1975 (-) — Victim of John Wayne Gacy aka The Killer Clown John Butkovich is abducted, assaulted and strangled by John Wayne Gacy aka The Killer Clown
Butkovich was body nr 2 found underneath Gacy's garage on 22 December 1978.
Sunday 13th of June 1976 (-) — Victim of John Wayne Gacy aka The Killer Clown William Carrol is strangled by John Wayne Gacy aka The Killer Clown
Thursday 3rd of June 1976 (-) — Victim of John Wayne Gacy aka The Killer Clown Michael Bonnin is strangled by John Wayne Gacy aka The Killer Clown
Tuesday 6th of April 1976 (-) — Victim of John Wayne Gacy aka The Killer Clown Darrell Samson is raped and strangled by John Wayne Gacy aka The Killer Clown
Friday 14th of May 1976 (-) — Victim of John Wayne Gacy aka The Killer Clown Randall Reffett is sexually assaulted and strangled by John Wayne Gacy aka The Killer Clown
Friday 14th of May 1976 (-) — Victim of John Wayne Gacy aka The Killer Clown Samuel Stapleton is sexually assaulted and strangled by John Wayne Gacy aka The Killer Clown
Saturday 11th of December 1976 (-) — Victim of John Wayne Gacy aka The Killer Clown Gregory Godzik is strangled by John Wayne Gacy aka The Killer Clown
Monday 17th of October 1977 (-) — Victim of John Wayne Gacy aka The Killer Clown Russell Nelson is tortured and strangled by John Wayne Gacy aka The Killer Clown
Friday 18th of November 1977 (-) — Victim of John Wayne Gacy aka The Killer Clown Tommy Boling is strangled by John Wayne Gacy aka The Killer Clown
Tuesday 15th of March 1977 (-) — Victim of John Wayne Gacy aka The Killer Clown Jon Prestidge is strangled by John Wayne Gacy aka The Killer Clown
Friday 30th of December 1977 (x) — Victim of John Wayne Gacy aka The Killer Clown Robert Donnelly is raped and tortured by John Wayne Gacy aka The Killer Clown
After several hours of assaulting and torturing the youth Gacy drove Donnelly to his place of work, removed the handcuffs from the youth's wrists and released him. Donnelly reported the assault and Gacy was questioned about it on 6 January 1978. Gacy admitted to having had 'slave-sex' with Donnelly but insisted everything was consensual. The police believed him and no charges were filed.
Thursday 15th of September 1977 (-) — Victim of John Wayne Gacy aka The Killer Clown Robert Gilroy is murdered by John Wayne Gacy aka The Killer Clown
Friday 9th of December 1977 (-) — Victim of John Wayne Gacy aka The Killer Clown David Talsma is strangled by John Wayne Gacy aka The Killer Clown
Thursday 10th of November 1977 (-) — Victim of John Wayne Gacy aka The Killer Clown Robert Winch is strangled by John Wayne Gacy aka The Killer Clown
Sunday 25th of September 1977 (-) — Victim of John Wayne Gacy aka The Killer Clown John Mowery is murdered by John Wayne Gacy aka The Killer Clown
Tuesday 5th of July 1977 (-) — Victim of John Wayne Gacy aka The Killer Clown Matthew Bowman is murdered by John Wayne Gacy aka The Killer Clown
Saturday 4th of November 1978 (-) — Victim of John Wayne Gacy aka The Killer Clown Frank Landingin is strangled by John Wayne Gacy aka The Killer Clown
Landingin's body was found in the Des Plaines River. Investigators found Landingin's driver's license in Gacy's home.
Friday 22nd of December 1978 (x) — Start of the excavations in the house of Serial killer John Wayne Gacy
Between 22 and 29 December, 27 bodies were recovered from Gacy's property, 26 of which were found buried in his crawl space, with one additional victim, John Butkovitch, being found buried beneath the concrete floor of his garage precisely where Gacy had marked the youth's grave with a can of spray paint.
Monday 11th of December 1978 (-) — Victim of John Wayne Gacy aka The Killer Clown Robert Piest is murdered by John Wayne Gacy aka The Killer Clown
Wednesday 22nd of March 1978 (x) — Victim of John Wayne Gacy aka The Killer Clown Jeffrey Rignall is raped, drugged, whipped and tortured by John Wayne Gacy aka The Killer Clown
When Rignall next regained consciousness he woke up under a statue in Chicago's Lincoln Park.
Thursday 16th of February 1978 (-) — Victim of John Wayne Gacy aka The Killer Clown William Kindred is strangled by John Wayne Gacy aka The Killer Clown
Kindred was the last victim that was buried in the crawl space under Gacy's house. Running out of space he dumped his next victims in the Des Plaines River.
Friday 22nd of December 1978 (x) — Serial killer John Wayne Gacy is placed under arrest as a suspect in the abduction of Robert Piest