Dennis Lynn Rader Wichita, Kansas Bind Torture Killer serial murderer aka "BTK" who was captured in 2005, three decades after his killing spree began.

8 1/2" x 11" drawing on the back of what looks like a cover page to a civil suit filed against Rader. 
On the other side, BTK has written and drawn "Cylinder Man." Rader has then initialed this piece at least three times and also hand signed, Dennis

Dennis Rader Cylinder Man Drawing Signed Four Times