The notorious serial killer John Wayne Gacy was born on March 17, 1942, in Chicago, Illinois. The son of Danish and Polish parents, Gacy and his siblings grew up with a drunken father who would beat the children with a razor strop if they were perceived to have misbehaved; the man physically assaulted Gacy's mother as well. Gacy's sister Karen would later say that the siblings learned to toughen up against the beatings, and that John would not cry. John Wayne Gacy faced an abusive childhood and conflict over his sexuality.
Gacy worked as a fast-food chain manager during the 1960s and became a self-made building contractor and Democratic precinct captain in Chicago's Norwood Park Community in the 1970s.
Well-liked in his community and a clown performer at children's parties, Gacy also organized cultural gatherings. He was married and divorced twice and had biological children and stepchildren.
Yet Gacy had a highly disturbing history. He was convicted in 1968 and given a 10-year prison term in relation to the sexual assault of two teen boys. He was released on parole in the summer of 1970 but was arrested the following year again after another teen accused Gacy of sexual assault; the charges were dropped when the boy didn't appear during the trial. By the middle of the decade, two more young males accused Gacy of rape, and he would be questioned by police about the disappearances of others.
It was later discovered that he had committed his first known killing in 1972, taking the life of Timothy McCoy after luring the teen to his home.
In 1978, 15-year-old Robert Piest went missing. It was reported to police that the boy had last been seen by his mother as he was headed to Gacy's in relation to a potential job. On December 21, a police search of Gacy's house at 8213 West Summerdale Avenue, Chicago, Illinois,  uncovered evidence of his involvement in numerous horrific acts, including murder. It would later be determined that Gacy had killed 33 boys and young men, the majority of whom had been buried under his house and garage, while others would be recovered from the nearby Des Plaines River. The Des Plaines police were responsible for solving the murders.
Gacy lured his victims to his home with the promise of construction work, and then captured, sexually assaulted and eventually strangled most of them with rope. When he killed, he sometimes dressed as his alter ego "Pogo the Clown."
Gacy's trial began on February 6, 1980, with a prosecution team headed by William Kunkle. With Gacy having confessed to the crimes, the arguments were focused on whether he could be declared insane and thus remitted to a state mental facility. Gacy had told police that the murders had been committed by an alternate personality, while mental health professionals testified for both sides about Gacy's mental state.
Ultimately found guilty of committing 33 murders after a short jury deliberation, Gacy became known as one of the most vicious serial killers in U.S. history. He was sentenced to serve 12 death sentences and 21 natural life sentences. He was imprisoned at the Menard Correctional Center for almost a decade and a half, appealing the sentence and offering contradictory statements on the murders in interviews. Though he had confessed, Gacy later denied being guilty of the charges and had a 900 number set up with a 12-minute recorded statement of his innocence. He took up visual art as well, and his paintings were shown to the public via an exhibition at a Chicago gallery.
He was found guilty in 1980 and given multiple death penalty and life sentences. With both anti–death penalty forces and those in favor of the execution making their opinions known, John Wayne Gacy died by lethal injection on May 10, 1994, at the Stateville Correctional Center in Crest Hill, Illinois.
There have been lingering concerns that Gacy may have responsible for the deaths of others whose bodies have yet to be found, with the Cook County sheriff's office pushing to search a Chicago apartment building where Gacy once worked as a maintenance employee.
The house was razed April, 1979 and a new house built in its place in 1988. It was given a new address of 8215 West Summerdale Avenue, Chicago, Illinois.
Compiled by Neil Gale, Ph.D.
John Wayne Gacy - Documentary
A SERIAL KILLER
 Norwood Park is one of 77 Chicago community areas. It encompasses the smaller neighborhoods of Big Oaks, Norwood Park East, Norwood Park West, Old Norwood Park, Oriole Park, and Union Ridge.
Originally organized in 1872 from adjacent townships (Jefferson, Leyden and Niles) as a village, and named after Henry Ward Beecher's novel Norwood, or Village Life in New England (1868), Norwood Park was annexed to the City of Chicago in 1893.
SEE: Chicago Neighborhoods by City Area and an Alphabetical List of Chicago Communities