Capt. Sam Houston, of the Sedgwick County Sheriff's Office, shows a mask during BTK serial killer Dennis Rader's sentencing hearing Thursday. It was found with victim Dolores Davis' body ...

The woman who was married to serial killer ... Paula Rader also made a reference to the similarity between her husband’s poor spelling and the misspellings in BTK’s letters, Dennis Rader ...

Notorious BTK serial killer Dennis Rader’s daughter confronted her father in prison after investigators found his personal diary that suggests he sexually abused her when she was too young to ...