By URIEL J. GARCIA, COLLEEN DeGUZMAN, ALEX NGUYEN and CARLA ASTUDILLO, The Texas Tribune

On the evening of July 1, Luis Medrano called Houston police for help after his wife had gotten violent and punched him twice in the face during a schizophrenic episode in which she was hearing tormenting voices, according to a police report.

Medrano, 50, a Mexican immigrant who met his wife when they crossed the Rio Grande with a group of about a dozen other migrants more than three decades ago, had tried to take his 47-year-old wife to the hospital, but she refused to go. So he did what he’d done three times before: called the police so they would take her to a hospital.

But this time, the officer arrested her on suspicion of assault and booked her into jail. And after a prosecutor dismissed the c

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