Dennis Lynn Rader Wichita Kansas' Bind Torture Killer serial murderer aka BTK.  

Chess game between Rader and a pen pal which is enclosed inside of a yellow handmade folder by Rader with his first name and his friends written by him on the front. Inside is a two-sided "Chess Game By Mail" game with the squares colored in by Rader along with initials. 
On the back he has signed Dennis above the moves made by both he and his friend. The writing on both sides of the page are completely penned by Rader.