It was an exodus just a few ticks short of panic. As word spread throughout Oakland around 2:30 p.m. that a verdict had been reached in the Johannes Mehserle murder trial, the downtown streets suddenly flooded with workers rushing out of their workplaces to go home. The normally placid lanes became clogged, people hurried along the sidewalk, and there was an almost electric air of worried anticipation. BART trains streaming in and out of downtown were jammed. At the downtown federal building, announcements were made over loudspeakers to tell everyone to go home. At many of the big businesses throughout...