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.

8 1/2" x 11" two page handwritten letter with a total of THREE signatures including a BTK signature and symbol. Rare.
Hand signed on the center top, DLR.
Hand signed three times the close. Hand signed, Dennis L. Rader a.k.a. "BTK" with a hand drawn BTK symbol and hand signed again, Dennis L. Rader.
Includes the original prison stamped mailing envelope  postmarked Wichita, Kansas which has been completely written by Rader. Hand signed, Dennis L. Rader.
 
Guaranteed authentic.