David Berkowitz is an American serial killer dubbed the Son of Sam and the .44 Caliber Killer. Berkowitz pled guilty to 8 shootings and is serving life in prison.
 
8 1/2" x 11" two page letter dated October 30, 2005 hand signed at the close, David B.
 
Includes the original prison stamped envelope with his typed name and return address appearing on both sides of the envelope.