Michael Owen Perry an insane serial killer who killed 5 people in Louisiana including his parents and infant nephew.  At the time of his arrest in Washington DC, Perry had a list of 5 more people he intended to kill including a Supreme Court justice and Olivia Newton John.

One page handwritten note on the back of the letter he received from the person who he is writing. Hand signed, Michael O. Perry.
Includes the original prison stamped mailing envelope hand signed, Michael Perry.

Michael Perry Letter and Envelope Set Signed