Dennis Lynn Rader is an American serial killer known as BTK, the BTK Strangler or the BTK Killer. Between 1974 and 1991, BTK killed ten people in Wichita and Park City, Kansas. Rader pleaded guilty and was sentenced to to 10 consecutive life sentences.

Valentine's Day card written by a woman close to Rader. She has written a note on the inside and hand signed her first name.
 
On the back, Rader has written the woman's name and address on the top.