Jonathan Koppenhaver, also known as "War Machine," is accused of beating Christy Mack at a home near Eastern and Desert Inn.
She is in the hospital with a ruptured liver, missing teeth and at least 20 broken bones.
Koppenhaver has a history of violence in the justice system.
On the run, Koppenhaver is tweeting to his fans. One post said Mack is his property and always will be.
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