Christopher J. Scarver who was already serving a life sentence when he murdered cannibal serial killer Jeffrey Dahmer at the Columbia Correctional Institute in Portage, WI.
One page letter dated October 23, 2013.  Signed twice, Christopher Scarver. Scarver has scribbled out one of his signatures.  Just below it he has written his name and complete address. Includes the prison issued envelope signed, Christopher Scarver. The top right portion of the envelope is missing and was delivered this way. The USPS bag for damaged mail is also included.

Christopher Scarver Letter and Envelope Set Both Signed