Boy found Friday at Alvarado Park buried under sand in playground . The boy was identified as a 5-year-old from the San Francisco Bay Area who had been missing since Saturday morning. Nobody knows name of boy dubbed `` Baby Justice '' or `` Baby Angel '' No cause of death for boy who may be Native American or Hispanic .
Boy found Friday at Alvarado Park buried under sand in playground . Police say nobody has been reported missing , nobody has claimed body . Nobody knows name of boy dubbed `` Baby Justice '' or `` Baby Angel '' No cause of death for boy who may be Native American or Hispanic .