Kenneth Bianchi  is an American rapist and serial killer. He is also known for the Hillside Strangler murders committed with his cousin, Angelo Buono. The pair were convicted of murders committed n Southern California. Bianchi was also convicted of two more murders in Washington state. 

Four page handwritten letter dated March 7, 2012 and beautifully hand signed the close, Ken.
Includes the original prison issued and stamped mailing envelope postmarked March 2012 written completely by Bianchi and hand signed, Kenneth Bianchi.

Kenneth Bianchi 4 Page Handwritten Letter And Envelope Both Signed