Keith Hunter Jesperson aka The Happy Face serial killer.  Known to have murdered at least 8 women with claims to have killed dozens more.  

4" x 6" photo of Jesperson sitting in front of several pieces of his artwork. On the back he has written, 2007 - Oct 13 - art show at OSP prison.
He has hand signed the back twice, Keith Hunter Jesperson, and included a smiley face at the end of the first signature. 

Keith Jesperson Signed Photo