Hadden Irving Clark is an American serial killer suspected of murders in several northeastern states. Clark is currently serving life in a Maryland prison. Clark remains a suspect in other unsovled murder cases.
 
8 1/2" x 11" Trick or Treat drawing at the top of the first page with a handwritten letter below which continues on the back. Hand signed, Love, Hadden.
 
Includes the backside of the original prison stamped envelope with 4 lines of handwritten address by Clark, and hand signed, Hadden Clark.