"Update: Obama to visit Newtown for memorial Sunday"

Obama's visit to Newtown for an interfaith vigil would be the fourth time he has traveled to a city after a mass shooting

Maryann Jacob, a clerk in the school library, was in there with 18 fourth-graders when they heard a commotion and gunfire outside the room. She had the youngsters crawl into a storage room, and they locked the door and barricaded it with a file cabinet.

There happened to be materials for coloring, "so we set them up with paper and crayons."
After what she guessed was about an hour, officers came to the door and knocked, but those inside couldn't be sure it was the police.

"One of them slid his badge under the door, and they called and said, 'It's OK, it's the police,'" she said.