A man with an assault rifle and other weapons exchanged gunfire with officers Tuesday at an Atlanta-area elementary school before surrendering, a police chief said, with dramatic overhead television footage capturing the young students racing out of the building, being escorted by teachers and police to safety. No one was injured.Just a week into the new school year, more than 800 students in pre-kindergarten to fifth grade were evacuated from Ronald E. McNair Discovery Learning Academy in Decatur, a few miles east of Atlanta. They sat outside along a fence in a field for a time until school buses came to take them to their waiting parents and other relatives at a nearby Wal-Mart.

When the first bus arrived about three hours after the shooting, cheers erupted in the store parking lot from relieved relatives, several of them sobbing.