Sitting calmly at a table with detectives, prison inmate Byron Scherf unemotionally describes how he killed Monroe Correctional Officer Jayme Biendl on Jan. 29, 2011.
“I was on top of her on this side here, using my arm to try to choke her with this part of my arm and it wasn’t working. There was an instrument cable laying there so I grabbed it and wrapped it around her head,” Scherf said in a videotaped confession.
Q13 FOX News obtained photos and other documents in the case as part of a public disclosure request through the Snohomish County Prosecutor’s Office.
Scherf's wife of 26 years said, “This seems so inconsistent with his character and what I know of him. I just wonder if maybe he's having a medication or if he's taking things that are giving him strange thoughts."
During the investigation, detectives talked with two women Scherf raped in 1981 and 1995. One of them was a real estate agent he attacked after having her meet him at a home that was for sale.
“He grabbed me by the neck and jumped on top of me with his full body weight and started choking me. That's when he told me, 'Rape doesn’t have to kill but if you don’t stop screaming I'll snap your neck off. I’ve done it before.' ”
Scherf then threw the real estate agent in the trunk of his car and drove to a logging road, where he raped her.
Scherf said that when he strangled Biendl in the Monroe prison chapel, he blacked out. So detectives asked the rape victim if she observed that during her attack.
“At any time during your encounter with Scherf did he black out at all or exhibit any decreased signs of consciousness?” asked a detective.
“No, not at all," she replied. "I think he not only fully comprehended what he was doing, he enjoyed thinking about it before he did it."
Scherf's first rape victim, a woman he set on fire and left for dead, told investigators she feels he deserves the death penalty.
Scherf is set to stand trial in the fall.