New evidence has strengthened the possible connection between BTK and an Oklahoma cold case.

 Recently released photos from the Osage County Sheriff's Office have given even more reason to suspect that Dennis Rader, otherwise known as BTK, is involved in the disappearance of Cynthia Dawn Kinney, who went missing from a Pawhuska laundromat in 1976. 

These photos are graphic in nature and show young women tied up in a barn and being tortured. Osage County Sheriff Eddie Virden says a tip that they received at the time was unfortunately never followed up on. 

Virden says that hopefully the release of the graphic drawings will help jog someone's memory in relation to the crime that was committed. 

During a prison phone call last week, Rader is reported to have said, “There might still be some things in some old barns.”