In March of 2010, Jarrod Wyatt was charged with murder, aggravated mayhem and torture after removing the heart, tongue, and face of his sparring partner and friend, Taylor Powell.

Though he originally pleaded not guilty by reason of insanity, according to the Associated Press, on Monday, Wyatt, now 29, agreed to a plea deal in which he will serve 50 years to life in prison.

The day of the attack, Wyatt was convinced that the world was about to end and that Powell was the Devil, according to the Times-Standard.

"My client was trying to silence the devil," Wyatt's defense attorney James Fallman told the Times-Standard.Wyatt also allegedly cooked Powell's body parts in a wood stove because he thought Powell was still alive, and an autopsy determined Powell's organs had been removed while the young man was still alive.

Sheriff's deputies in Crescent City, Calif. found Powell's body on a couch with an 18-inch incision in the chest and most of the face removed. Wyatt was next to him, naked and bloody.

"Satan was in that dude," Wyatt allegedly told Del Norte County Police Sgt. Elwood Lee, who responded to the scene," reported CBS.

According to ABC, the two men had ingested hallucinogenic mushrooms before the attack,witnesses claimed.

"The earliest he'll be able to see a parole board is 2062," District Attorney Jon Alexander told the AP. "We saved Taylor's family the agony from reliving the incident at the trial."