A black-clad gunman who marched into a Georgia elementary school “was ready to die” before a brave school clerk convinced him to surrender to police. The suspect, Michael Brandon Hill, burst into the front office of Ronald E. McNair Discovery Learning Academy near Atlanta and began barking orders to two staff members inside about 1 p.m. Tuesday, ABC World News reported. “I’m not playing,” the 20-year-old man allegedly said. “This is for real. This is not a show.” Antoinette Tuff, a bookkeeper for the Decatur school, told the news station that she was with one other staff member when Hill...