Richard Clarey who confessed to over 100 murders starting when he was 15 years old and living in Germany.  Clarey was sentenced to life without parole.

4 1/2" x 12" Valentine's card which opens up to 9" x 12" and is hand signed on the inside, Richard.
 
Includes the original prison issued envelope with 10 lines of handwritten address and hand signed, Richard N. Clarey.