By Gary Richards
San Jose Mercury News
San Francisco -- A San Francisco police officer died early Saturday, gunned down in the city's Sunset district as he and another officer chased a man who also was killed in the shooting.
Officer Bryan Tuvera was shot and killed during a foot pursuit in San Francisco, Saturday. (ODMP)
Officer Bryan Tuvera, 28, is the third San Francisco officer to die in the line of duty this year. The dead suspect, Marlon Ruff, 33, of San Bruno, was being sought after escaping from a California correctional facility.
San Francisco officer killed in hunt for escaped prisoner