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.

"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.

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.

Critics of the bill said the idea sounds good until something like the tragedy at Antioch High School or even The Covenant School takes place.

Police say the gun used in the Nashville school shooting was purchased in Arizona as detectives piece together why the high school student fatally shot a classmate before killing himself

Metro Police reveal new details on what happened before and during the deadly shooting at Antioch High School. FOX 17 News sits down with a student witness.