The notorious serial killer known as the "I-5 Strangler" was strangled to death, according to autopsy results released Wednesday.
Roger Reece Kibbe, 81, was killed Sunday during the attack at Mule Creek Prison in Amador County. State correctional officials said a correctional officer spotted the convicted murderer unresponsive in his cell after midnight.
His cellmate, Jason Budrow, was standing over the body and is accused of killing him. Budrow was convicted in 2011 of strangling his girlfriend in Riverside County, according to the Sacramento Bee.
"A forensic autopsy was performed at the Sacramento County Coroner’s Office. The cause of death was manual strangulation and the manner of death is homicide," a news release from the by the Amador County Sheriff’s Office said.
Kibbe's crimes are infamous in Northern California.
Some of his victims were abducted from their vehicles and their bodies were dumped along highways, thus landing him the "I-5 Strangler" moniker.
Kibbe was convicted in 1991 of strangling a 17-year-old runaway from Seattle. He later pleaded guilty to raping and murdering six other victims, including two East Bay women, in the 1970s and 1980s.
He was serving consecutive life sentences at the time of his death.
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