John Wayne Gacy
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.