Ottis Toole dead cannibal serial killer. Believed to have murdered Adam Walsh who disappeared from a Hollywood shopping center in 1981. 

Handwritten letter dated March 1, 1990 and includes the original prison stamped envelope. Both the letter and envelope have been written by the late serial killer, Gerard Schaefer. Letter has been signed by Toole with his first name, Ottis.

Ottis Toole Letter and Envelope Penned by Gerard Schaefer