Two Pennsylvania state troopers and a man were run over and killed alongside I-95 in Philadelphia early Monday morning by a woman who had been stopped on suspicion of driving under the influence just moments before. Troopers Martin F. Mack III, 33, and Branden T. Sisca, 29, were on the shoulder helping a man into the back of a cruiser when a woman tried to drive past the three men at a high speed just before 1 a.m.