Former Property of 'BTK Killer' Dennis Rader Searched for Cold Case Connections

Investigators are searching the former property of notorious serial killer Dennis Rader, also known as the BTK Killer, in connection to long-unsolved missing persons and murder cases. Rader, who is serving 10 consecutive life terms for killing 10 people between 1974 and 1991, may have had more victims before his 2005 arrest. The search was prompted by the cold case investigation into the disappearance of a 16-year-old cheerleader in 1976. Rader's estranged daughter revealed that investigators dug a hole in an area where a shed once stood, suspecting evidence may have been hidden there.