D.C. Police Chief Cathy Lanier announced this afternoon that five men have been arrested for the killing of 13-year-old Alonzo Robinson and shooting of four other people in Trinidad last July. The shooting spree was one of the worst incidents in a wave of increased violence in Trinidad that lead police to establish controversial checkpoints in the area. Police say the five men, all from the Kenilworth-Parkside area, sprayed gunfire in the neighborhood in an attempt to settle a cross-neighborhood dispute with members of the Trinidad neighborhood. One of the suspects was arrested in early July and has been cooperating with the police.