Story highlights Jury is deadlocked on War Machine's charges of attempted murder

His conviction on 29 other charges could bring life without parole

(CNN) A Las Vegas jury on Monday handed down a mixed verdict for mixed martial arts fighter War Machine. He was found guilty in the 2014 beating of his ex-girlfriend and her male friend, but the jury was deadlocked on the most serious charges of attempted murder with a deadly weapon.

After eight days of testimony and almost two days of deliberations, War Machine, who changed his name from Jonathan Koppenhaver, was found guilty on 29 of 34 charges -- including domestic violence, sexual assault, kidnapping and coercing witnesses -- in the beatings of porn star Christy Mack and her friend Corey Thomas in August 2014.

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War Machine, 35, did not take the stand, but his attorneys admitted he assaulted the pair after storming into Mack's home and finding her in bed with Thomas.

Jay Leiderman, War Machine's lawyer, said brain injuries and a cocktail of drugs -- including Adderall, Lexapro, and steroids -- combined with rage and shock and led to a situation in which "someone loses their mind."

Prosecutors said there is no proof War Machine was under the influence of drugs at the time of the attack, and contended Mack endured abuse on multiple occasions over the span of the couple's 15-month relationship.

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