“It started so normal, the day that is,” Mintz said on his Facebook post.
Mintz was in his writing class, chuckling with the teacher and other students, when commotion broke out in another room.
“My teacher walked up to the door that connected our classroom and asked if everyone was OK,” he said. “No one could tell what the yelling was.”
When the teacher knocked, gunshots erupted, like firecrackers. His classmates took off running.