Ryan O'Callaghan's plan was always to play football and then, when his career was over, kill himself. Growing up in a politically conservative corner of California, the not-so-subtle messages he heard as a young man from his family and from TV and film routinely equated being gay with disease and death. Letting people in on the darkest secret he kept buried inside was not an option: better death with a secret than life as a gay man. As a kid, Ryan...