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In 2012, a DNA cold hit pointed to Douglas Perry. A repeat assault offender, Douglas was currently incarcerated in Carswell, Texas. But there was a twist: The facility was for female prisoners. The man authorities hunted for decades was now Donna Perry. Her gender reassignment not only helped to mask the evil deeds of the past, it ended a life of childhood traumas and a pent-up rage unleashed on nearly thirty victims, according to Donna herself. Through total reinvention, she believed she’d finally slayed the monster within. 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