Newtown, Conn. —
As she approached the school, teachers were leading their children out single file, each had their hand on another's shoulder.
"It was very orderly. They weren't even running, they were just walking, following their teacher," she said. "Nobody was screaming. Parents were racing around looking for their kids, but the kids were just in line, following their teacher. Some were crying, but mostly they were calm."
She made a couple more trips with children, then went back to the school and waited with another nurse and a pediatrician to help treat the wounded. None ever came out.
"You expected them to be bringing out more kids," said Debbie Leidlein, the school board president, who was home sick but rushed to the school when she heard the news, "and it just wasn't happening."
Kerins waited for two hours, watching as police officers came and went but never brought any more children outside.
"Finally they said to us they didn't need us anymore. We knew it was bad."
Carefully, police searched room to room, removing children and staff from harm's way. They found Adam Lanza, dead by his own hand after shooting up two classrooms. No officer fired a gun.
Student Brendan Murray told WABC-TV it was chaos in his classroom at first after he heard loud bangs and screaming. A police officer came in and asked, "Is he in here?" and then ran out.
"Then our teacher, somebody, yelled, 'Get to a safe place.' Then we went to a closet in the gym and we sat there for a little while, and then the police were, like, knocking on the door and they were, like, 'We're evacuating people, we're evacuating people,' so we ran out."