From this NBC Connecticut article: “I was in the gym and I heard a loud, like seven loud booms, and the gym teachers told us to go in the corner, so we all huddled,” one student at Sandy Hook Elementary School in Newtown told NBC Connecticut. “And I kept hearing these booming noises. And we all … started crying.
“All the gym teachers told us to go into the office where no one could find us,” she added. “So then a police officer came in and told us to run outside. So we did and we came in the firehouse and waited for our parents.”
The gunman is suspected to be the father of a student at the school. Reports of a potential second shooter outside of the school are emerging. They say that a man is in police custody who was standing in the woods outside the school, wearing camouflage.
Witnesses told media that they heard, “over 100 rounds” go off inside the school. It is also reported that the gunman had two to four weapons, and entered the school wearing a mask and dressed in all black.
NBC Connecticut said the school is usually locked and visitors are required to be allowed entrance.