Her testimony was punctuated by footage recorded from inside classrooms in the 1200 building, which was not shown to the public. She also acknowledged the sound of gunfire was less pronounced as the shooter moved upstairs. Peterson was not charged for the injuries and deaths that occurred in her class. On cross-examination, Gilbert reiterated she was on the first floor of the building. She was asked about Peterson’s actions that day and whether she ever saw him help any students. “Everything was in the moment, instinctual stuff,” Gilbert said.

The students inside her classroom began rendering aid to the injured, using their jackets and blankets as tourniquets to stop the bleeding. The sound of the gunfire slowly diminished, she said, as the shooter moved up onto the building’s first and second floors.

One – 16-year-old Carmen Schentrup – was killed, Gilbert said. But after about a minute, the shooter fired into the classroom, wounding four inside. Immediately, she said, they dropped to the floor and moved to the corner of the room by the door, hoping they would be out of the line of fire.

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