James M. Mason knew his wife since she was born a boy. The janitor and former military man was a boarder in the child's home and was treated like family. Many were surprised when he married Chris nearly three years ago, not just because he knew she underwent sex-change surgery three years before, temporarily calling herself Christine Newton-John after the pop singer with the same last name. He was in his 70s, she in her 30s. He was mild-mannered; she had a domineering personality. Then, last summer, there was another surprise: Chris Mason was accused of exercising her frail husband...