Timothy Wilson Spencer (March 17, 1962 – April 27, 1994), also known as The Southside Strangler, was an American serial killer who committed three rapes and murders in Richmond, Virginia, and one in Arlington, Virginia, in the fall of 1987. In addition, Spencer committed a previous murder in 1984, for which a different man, David Vasquez, was wrongfully convicted.

Rocco Fischetti, also known as "Rocky" and "Ralph Fisher" (March 24, 1903 – July 5, 1964), was a Chicago mobster with the Chicago Outfit criminal organization who ran many illegal gambling operations. Fischetti also accompanied singer Frank Sinatra on two trips to Havana, Cuba.

Nicholas "Little Nicky" Corozzo (born March 17, 1940) is an American mobster who allegedly serves as a caporegime in the Gambino crime family of New York City.

John Wayne Gacy (March 17, 1942 – May 10, 1994) was an American serial killer and sex offender who raped, tortured and murdered at least thirty-three young men and boys between 1972 and 1978 in Norwood Park Township, a suburb of Chicago, Illinois. He became known as the "Killer Clown" due to his public performances as a clown prior to the discovery of his crimes.