Envelope sent by John Wayne Gacy from prison.

Please note, this document has some slight water damage. Please see photos.

John Wayne Gacy was an American serial killer and sex offender who raped, tortured, and murdered at least 33 young men and boys in Norwood Park Township, near Chicago, Illinois. He became known as the Killer Clown due to his public performances as a clown prior to the discovery of his crimes.