"He stopped in front of our door because the door was open and he was trying to get to more students. And we heard gunshots coming from the first floor, the second floor and people were running upstairs. The door was left open the whole time so as (the shooter) walked by, the door was open. She said she didn't initially move when the alarm went off and was turned around while trying to leave the building. 'I heard shots'A boy told WPLG he heard shots about 20 minutes before the end of school.

Source: CNN February 15, 2018 00:40 UTC