John Wayne Gacy, Jr. (March 17, 1942 – May 10, 1994), also known as the Killer Clown, was an American serial killer and rapist.\r<br>\r<br>John Wayne Gacy, Jr. (March 17, 1942 – May 10, 1994), also known as the Killer Clown, was an American serial killer and rapist. John Wayne Gacy, Jr. was an .\r<br>\r<br>John Wayne Gacy, Jr. was an American serial killer and rapist, also known as the Killer Clown, who was convicted of the sexual assault and murder of a .\r<br>\r<br>\r<br>\r<br>While names like Columbine, Charles Manson and Jeffrey Dahmer may be more well-known, John Wayne Gacy trumps everyone as the worst serial killer in .
