YouTube shooting: Female suspect dead, four wounded - what we know so far

Police Chief Ed Barberini said during a news conference that the female victim found was "believed to be the shooter" but that police and other law enforcement agencies are continuing to investigate the "active" situation.One staff member at the San Bruno campus - located 11 miles from San Francisco - said he barricaded himself in a room after hearing shots.Another reported seeing "blood drips" on the floor and stairs as he fled the building as armed police swarmed the site.