Jon Koppenhaver, the mixed martial arts fighter also known as “War Machine,” attempted suicide in a Las Vegas jail Tuesday, according to media reports. He has been moved to a medical isolation cell and placed on suicide watch, according to authorities.

Law enforcement sources told TMZ that a corrections officer at the Clark County jail, where Koppenhaver is being held, discovered him in his cell with a piece of linen tied to his bed and around his neck. He was described as being purple in the face and unresponsive. The officer cut the cloth away and the former fighter began breathing again. 

Brandon Sua, Koppenhaver's attorney, told the Las Vegas Review-Journal that the fighter's vital signs had "completely stopped" and that he was "pretty much dead" when found. Sua also said officials found "multiple" suicide notes in Koppenhaver's cell.

Koppenhaver is awaiting trial on 32 charges, including two counts of attempted murder, stemming from an alleged attack on his former girlfriend, the adult actress Christy Mack, and her friend Corey Thomas.

After fleeing authorities in the wake of the attack, Koppenhaver was captured in Southern California, and returned to Nevada to stand trial. A preliminary court hearing scheduled for Friday was postponed after Koppenhaver's lawyers asked for time to present a plea deal, according to ESPN

Koppenhaver could face a sentence of up to life in prison if convicted on the charges he faces.