Joseph Fischer was aserial killer who died in 1991 while serving life in prison only months after being featured on America's Most Wanted. 
Fischer was sentenced for murders in Oklahoma and New York. He is also suspected of murders in several states including New Mexico, Arizona, Connecticut, Maine, etc. with a body count upwards of more than 40 victims.

Handwritten letter with highly interesting content in where Fish writes to his friend about how to murder people without being detected. This had originally been cut and clipped by the original owner who had placed it into a photo album which is where he was removed from when this was purchased from a relative of the original owner. The letter is hand signed at the close, Fish. 
Includes the original prison stamped mailing envelope postmarked July 17, 1989 and hand signed, Joe Fischer.