11-year-old autistic and schizophrenic child, LeMichael Humphrey, missing in San Francisco since Tuesday.

11-year-old at-risk child, LeMichael Humphrey, diagnosed with autism and schizophrenia, missing since Tuesday in San Francisco. Last seen on 400 block of Stanyan Street wearing black-gray hoodie, green shirt, gray slacks, white shoes. Known to travel on Muni and BART to surrounding cities. SFPD asks public for help and asks anyone locating Humphrey to call 911, and anyone with information to call SFPD tip line at 415-575-4444.