Keith Hunter Jesperson serial killer known as The Happy Face Killer. Inmate copy of his county jail commissary receipt dated December 28, 2009. Signed and dated in full including his moniker and a hand drawn smiley face, Keith Hunter Jesperson The Happy Face Killer In California 8 January 2010.  Scarce in that Jesperson is prohibited from signing his moniker and drawn a happy face along with his signature.

Keith Jesperson County Jail Store Receipt Signed The Happy Face Killer