A Northern California mixed-martial artist accused of ripping out his friend's heart and removing his tongue while the two were on hallucinogenic drugs...

When police arrived that day at a home at the mouth of the Klamath River, they found Wyatt naked and covered in blood. He told the officers, "I killed him," and said he had cut out Powell's heart and tongue, according to court documents.

The officers found Powell's body on the couch of the Requa home. His chest was cut open, and his heart, tongue and the skin of his face were gone, court records said. His heart was found charred in a wood-burning stove.

An autopsy determined the organs had been removed while Powell was still alive, the documents said.

Witnesses say the two had ingested hallucinogenic mushrooms before the attack and believed they were involved in a struggle between God and the devil.