Chattanooga mourned anew for four U.S. servicemen Friday as we began to learn more about the men who were killed in a shooting rampage by a heavily armed gunman who authorities now are openly investigating as a terrorist.
Gunnery Sgt. Thomas Sullivan, 40, from Springfield, Mass., was in the Marines for 18 years, a combat veteran with a Purple Heart.
Puzzling out answers, pouring out grief
'Nightmare for our city'
Lance Cpl. Squire Kimpton Paul "Skip" Wells, 21, of Marietta, Ga.,