A jail official who spoke to The Associated Press declined to release information about an attorney for Valdez-Lind. Mike Valdez wasn't hurt in Tuesday's incident. He and his ex-wife are 49.
Police say officers arrived at the scene to find the woman holding a pistol and her ex-spouse taking cover behind a car near the home they had shared.
Officers believe the argument broke out just after the couple returned from court, where their divorce was finalized.
Further details on what prompted the argument were not immediately available.
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