Dennis Andrew Nilsen aka "The Muswell Hill Murderer" and the "Kindly Killer" was one of the most notorious British serial killers and necrophiliacs to ever live. Nilsen was responsible for the murders of at least 12 men. He died in prison on May 12, 2018.

One page letter dated November 13,2012, hand signed at the close, Des Nilsen. 
 
Includes the original mailing envelope postmarked 2012.