New details have emerged about the tragic Nashville school shooting, with experts attributing the quick responses of teachers to saving lives. Brink Fidler, a former police officer who provided active shooter training at the school, praised the teachers for their ability to fortify their doors and place their students in safe spots. Victims struck by the shots were stuck in open areas or hallways, not in locked-down classrooms thanks to the teachers’ quick reactions. "These teachers are the reason those kids went home to their families," he added. In the attack, six people were killed, including three 9-year-old students, a substitute teacher, the head of the school, and a custodian. Police believe the victims were fired upon at random. Nashville authorities also released the 911 calls during the attack. Callers are heard pleading with police to hurry while in the background, sirens, crying, and gunfire ring out. Although police were able to respond quickly, this tragedy highlights the importance of active shooter training and the need for increased safety measures in schools.