A bloody fistfight broke out among rival gang members at Richmond City Hall on Friday, according to police. Seven men from different parts of the city brawled in a third-floor suite that houses the city’s Office of Neighborhood Safety around 12:30 p.m. Friday, department director Devone Boggan said. He said all of the men involved in the melee are enrolled in the office’s “Operation Peacemaker” fellowship and happened to show up at the office at Richmond’s Civic Center at the same time unexpectedly.