In California, prison inmates who have committed serious crimes and have been diagnosed with a major mental illness can be forced to serve their parole in a state hospital. At Atascadero State Hospital, shown above in this 1999 photo, there are more than 600 such patients. "As a group," says the hospital's director, "the mentally disordered offenders are the most aggressive." Reed Saxon/AP hide caption

itoggle caption Reed Saxon/AP