NEWTOWN, CONN. - In a first-grade classroom, teacher Kaitlin Roig heard shots.
She immediately barricaded her 15 students into a tiny bathroom, sitting one of them on top of the toilet.
She pulled a bookshelf across the door and locked it. She told the kids to be "absolutely quiet."
"I said, 'There are bad guys out there now. We need to wait for the good guys,'" she told ABC News.
"The kids were being so good," she said. "They asked, 'Can we go see if anyone is out there?' 'I just want Christmas. I don't want to die, I just want to have Christmas.' I said, 'You're going to have Christmas and Hanukkah.'"
One student claimed to know karate. "It's OK. I'll lead the way out," the student said.
As the close-knit community of Newtown, Conn., reeled in the aftermath of one of the worst mass shootings in U.S. history, terrifying new details emerged Saturday about how teachers and staff members at Sandy Hook Elementary scrambled to move children to safety as the massacre began.
Maryann Jacob, a library clerk, said she initially herded students behind a bookcase against a wall "where they can't be seen."