In 1992, after he stopped wearing clothes to his UC Berkeley classes, Andrew Martinez was something of a walking only-in-Berserkeley joke as the campus' own Naked Guy. But his life was no laughing matter. Around 1997, he was diagnosed with schizophrenia. In 2003, he was arrested for assaulting a staff member at a halfway house where he was a resident. He spent the next 21/2 years in Santa Clara County jail, its acute psychiatric unit, Napa and Atascadero state hospitals - until at age 33, he killed himself by suffocating himself with a plastic bag in a jail cell on...