In the latest news surrounding War Machine, the disgraced former mixed martial artist who was arrested after allegedly assaulting his ex-girlfriend Christy Mack, it's being reported that the woman responsible for his capture has turned down her reward money.

According to TMZ, Mary Casamento said she's dying of cancer and has decided not to accept the $20,000 reward. She reportedly already has enough money to last her for the rest of her life so she will instead donate the money to a Santa Clarita, Calif. battered women's shelter.

The $20,000 came from Mack's family and "Pawn Stars" star Corey Harrison, who donated $10,000 apiece.

War Machine, born Jonathan Koppenhaver, was on the run from police when he was arrested on Aug. 15 at a hotel in Simi Valley, Calif. Casamento was staying at that hotel when she overheard Koppenhaver having a dispute with a woman who then ran out of his room bloodied. After seeing that, Casamento called the cops who came and arrested him.

Mack, born Christine Mackinday, and Corey Thomas were allegedly attacked by Koppenhaver on Aug. 8 at her home in Las Vegas. Mack suffered numerous injuries, including two missing teeth, a lacerated liver and a blowout fracture of her left eye from the attack.

After an appearance in a California court this past Tuesday, Koppenhaver will be extradited back to Las Vegas to await trial. Prosecutors in Las Vegas filed multiple felony battery, assault and coercion charges that could get Koppenhaver a total of more than 25 years in prison if he is convicted.