Gacy became known as the "Killer Clown" because of his charitable services at fund-raising events, parades, and children's parties where he would dress as "Pogo the Clown" or "Patches the Clown", characters he had devised. was born in Chicago, Illinois, on March 17, 1942, the only son and second of three children born to John Stanley Gacy (September 21, 1900 – July 10, 1969), an auto repair machinist and World War I veteran, As a child, Gacy was overweight and not athletic.
He was close to his two sisters and mother, but endured a difficult relationship with his father, an alcoholic who was physically abusive to his wife and children.
This decision earned more criticism from his father, who accused his son of being a "patsy".
with the title of the vehicle being in his father's name until Gacy had completed the monthly repayments.
His father regularly belittled him and often compared him unfavorably with his sisters, disdainfully accusing him of being "dumb and stupid".
Gacy, while regularly commenting that he was "never good enough"When he was six years old, Gacy stole a toy truck from a neighborhood store.
One of Gacy's friends at school recalled several instances in which Gacy Sr. On one occasion in 1957, the same friend witnessed an incident in which Gacy's father began shouting at his son for no reason, then began hitting him.
At the age of 18, Gacy became involved in politics, working as an assistant precinct captain for a Democratic Party candidate in his neighborhood.
After a nine-month courtship, the couple married in September 1964.
All of Gacy's known murders were committed inside his Norwood Park ranch house.
His victims were typically induced to his address by force or deception, and all but one of his victims were murdered by either asphyxiation or strangulation with a makeshift tourniquet; his first victim was stabbed to death.
apologized privately to his son for the physical and mental abuse he had inflicted on him throughout his childhood, before proudly informing him: "Son, I was wrong about you." He is also known to have opened a "club" in his basement, where he allowed his employees to drink alcohol and play pool.
Although Gacy employed teenagers of both sexes at his restaurants, he socialized only with his young male employees.
In response, his father removed the distributor cap from the vehicle, withholding the component for three days.