John Wayne Gacy aka the "Killer Clown" and "Pogo the Clown" was a Des Plaines, Illinois serial killer convicted of 33 murders and who was executed by the state of Illinois via lethal injection on May 10, 1994. 

8 1/2" x 11" one page letter written to artist RK Sloane and hand signed at the close. John.

Includes the original mailing envelope postmarked November 1990 Menard, Illinois with a COA from Mr. Sloane.

John Wayne Gacy Signed Letter and Envelope Set