Serial KillerSolved

John Wayne Gacy

Chicago, Illinois, United StatesJanuary 1, 1972

John Wayne Gacy was a Chicago-area building contractor and community volunteer who led a double life as one of the most prolific serial killers in American history. Known as the "Killer Clown" because of his participation in children's charity events dressed as his character "Pogo the Clown," Gacy murdered at least 33 young men and boys between 1972 and 1978. Most victims were lured with promises of construction work or cash.

Gacy's method was to subdue victims with handcuffs under the guise of showing them a magic trick, then strangle them with a tourniquet. He buried 26 of his victims beneath the crawl space of his home in Norwood Park Township, Illinois, and disposed of several others in the Des Plaines River. Neighbors noticed a persistent foul odor from his property, which Gacy explained as soil and moisture problems.

He was caught in December 1978 after the disappearance of 15-year-old Robert Piest, who had gone to Gacy's home inquiring about a summer job. Investigators obtained a search warrant and discovered the crawl space graves. As excavation continued, Gacy eventually confessed and directed police to additional dump sites in local rivers. The scale of the discovery shocked investigators and the public alike.

Gacy was convicted of 33 murders in 1980 and sentenced to death on 12 counts. During his years on death row he took up oil painting and sold his artwork, which provoked intense controversy. He was executed by lethal injection on May 10, 1994. For decades, eight of his victims remained unidentified until advances in DNA technology allowed their names to finally be established.

Related Cases

Serial KillerSolved

Jeffrey Dahmer

Milwaukee, Wisconsin

Jeffrey Dahmer murdered 17 men and boys between 1978 and 1991 in a series of crimes involving drugging, strangulation, necrophilia, dismemberment, and cannibalism. His first murder occurred in Ohio in 1978 when he was just 18. After a period of relative inactivity, he began killing again in Milwaukee in 1987, luring victims — predominantly gay Black men — to his apartment with promises of money to pose for photos or companionship. Dahmer's apartment at 213 Oxford Apartments became a house of horrors. He kept body parts as trophies, photographed his victims, and attempted to create lobotomized "zombies" by drilling holes in living victims' skulls and injecting acid. In May 1991, a 14-year-old victim escaped and was returned to Dahmer by police officers who accepted Dahmer's claim that the boy was his adult boyfriend — a catastrophic failure that resulted in the boy's murder. Dahmer was finally arrested in July 1991 when Tracy Edwards escaped from his apartment with a handcuff dangling from one wrist and flagged down a police car. Officers returned to the apartment and found photographs, a human head in the refrigerator, and the remains of multiple victims. Dahmer confessed fully and was convicted of 15 murders in 1992, receiving 15 consecutive life sentences. Dahmer was beaten to death by a fellow inmate at the Columbia Correctional Institution in Wisconsin on November 28, 1994, less than three years into his sentence. His case raised serious questions about law enforcement's treatment of minority communities and prompted a review of the officers who returned his escaped victim. A 2022 Netflix series about his life sparked renewed debate about whether such portrayals exploit victims and their families.

Serial KillerSolved

Ed Gein

Plainfield, Wisconsin

Edward Theodore Gein was an American murderer and body snatcher from Plainfield, Wisconsin, whose crimes — discovered in November 1957 — permanently altered American pop culture. Though officially confirmed to have killed only two people, Gein had spent years exhuming corpses from local cemeteries and fashioning items from their remains, including bowls made from skulls, lampshades from face skin, a vest made from a woman's torso, and chairs upholstered with human flesh. Gein's crimes were uncovered when police investigating the disappearance of hardware store owner Bernice Worden found her decapitated and dressed body hanging in his shed. A search of his farmhouse revealed the full extent of his activities — a house of horrors that traumatized the officers who entered it. Gein had lived alone on his isolated farm since his domineering mother's death in 1945, and had become increasingly disturbed in the years that followed. Psychiatrists found Gein mentally unfit to stand trial, and he was committed to a psychiatric institution. He was eventually tried in 1968 and found not guilty by reason of insanity, spending the remainder of his life institutionalized. He died at the Mendota Mental Health Institute in Wisconsin in 1984. Despite his relatively small confirmed kill count, Gein's case had a profound influence on American fiction and horror. He was the partial inspiration for Norman Bates in Robert Bloch's novel Psycho, Buffalo Bill in The Silence of the Lambs, and Leatherface in The Texas Chain Saw Massacre. His case fundamentally shaped the "monster-next-door" archetype in American crime and popular culture.

MurderUnsolved

The Tylenol Murders

Chicago, Illinois

In late September and early October 1982, seven people in the Chicago area died after taking Extra-Strength Tylenol capsules that had been laced with potassium cyanide. The victims — ranging from a twelve-year-old girl to adults — had no connection to each other; the only link was the product they had taken. The FDA and Johnson & Johnson mounted a massive recall of all Tylenol products, removing thirty-one million bottles from shelves. The case caused a nationwide panic and immediately and permanently transformed pharmaceutical packaging practices around the world. The investigation involved the FBI, FDA, and Chicago-area police in an enormous collaborative effort. Despite extensive interviews and evidence collection, no suspect was ever charged with the murders. A man named James Lewis sent a letter to Johnson & Johnson attempting to extort $1 million to "stop the killings," and was convicted of extortion — but he denied placing the cyanide and no evidence linked him to the tampering itself. He served thirteen years in prison. A second man, Roger Arnold, was investigated but not charged. The case remains officially unsolved. Johnson & Johnson's response to the crisis became a landmark case study in corporate crisis management. The company recalled all thirty-one million bottles at a cost of approximately $100 million — before being legally required to do so — and cooperated fully with investigators. The decision to prioritize public safety over profit was widely praised. Tylenol was reintroduced in tamper-evident packaging that became the industry standard; the FDA subsequently mandated tamper-resistant packaging for all over-the-counter medications. The Tylenol murders created the modern tamper-proof seal that appears on virtually every consumer product sold today. Federal legislation criminalizing product tampering was passed directly in response to the case. Despite being one of the most consequential murders in consumer safety history, the killer has never been identified. The case is studied in business schools, law schools, and public health programs as simultaneously a crisis management triumph and a law enforcement failure.

Discover a random case