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."

Raw interview: Sandy Hook library clerk

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.

The district superintendent said she was told another teacher pushed students in the kiln room until police let them out.