"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.

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.

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.

Antioch High School is located in Nashville's Antioch neighborhood, approximately 17 miles southeast of Downtown Nashville.

As the news unfolded of a deadly shooting in the cafeteria at Antioch High School on Wednesday morning, one student witness gave her account.

Nashville police and schools are monitoring social media discussion and concerns Thursday as people speculate if additional schools could be targeted after a 17-year-old student opened fire Wednesday at Antioch High School, killing himself and a 16-year-old girl while injuring another, officials said.

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.

Law enforcement surrounded the last known address of the Antioch High School shooter Wednesday, removing boxes of material from the residence.

Law enforcement officials seeking a motive for a shooting at Nashville’s Antioch High School on Wednesday morning are examining alarming social media posts and writings tied to a teenager police say shot and killed a 16-year-old girl.

Mayor Freddie O'Connell on Thursday announced a new Community Foundation of Middle Tennessee fund for victims in the Antioch High shooting.

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.