An off-duty Richmond police officer was arrested early Sunday after firing his gun and then barricading himself for nearly two hours in a hotel room at the Four Seasons hotel in San Francisco, authorities said. Officers responded to reports of shots fired about 4:55 a.m. at the Four Seasons, at 757 Market St., said Officer Robert Rueca of the San Francisco Police Department. The suspect was an off-duty Richmond officer who is a veteran on ...