"Based on the location of the shooter and the position of the weapon, it did not activate the system," a district official told the USA TODAY Network.
Police said a male student shot two people at the high school on Wednesday morning before turning the gun on himself.
Police said the suspect fatally shot himself after killing a 16-year-old and wounding a 17-year-old at Antioch High School.
Antioch High School is located in Nashville's Antioch neighborhood, approximately 17 miles southeast of Downtown Nashville.
A teenager opened fire at Antioch High School Wednesday killing a student and leaving a mourning community that has already seen two mass shooting incidents in recent years.
One student is dead and another is wounded after a third student opened fire with a pistol Wednesday at Antioch High School in Nashville, Tennessee, police said. The 17-year-old shooter then shot himself and died, according to police.
Students at Antioch High School are opening up about the scenes of panic that unfolded inside the building during the shooting; a victim's family is speaking out.
As the news unfolded of a deadly shooting in the cafeteria at Antioch High School on Wednesday morning, one student witness gave her account.
A student shot at least two other students Wednesday at Antioch High School outside Nashville, Tennessee, police said. The shooter then shot himself, according to police. The conditions of the students wasn't immediately known.
Mayor Freddie O'Connell on Thursday announced a new Community Foundation of Middle Tennessee fund for victims in the Antioch High shooting.
A 16-year-old female student was killed, another student was wounded, and the shooter—a 17-year-old male student—killed himself, per police.