Roger Kibbe was strangled at a prison in California in the early hours of Sunday. He raped and strangled at least 8 women to death during a decade-long killing spree

A serial killer who raped and strangled at least seven women has been brutally murdered in prison. Roger Kibbe , 81, was killed at the Mule Creek State Prison in Amador County, California, shortly after midnight on Sunday. Details on how he was killed, or who was behind the murder, have yet to be released.