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.

Nashville investigators say they believe the teenager who opened fire in a high school and killed a girl before killing himself was influenced by material found on "harmful" sites.

One 16-year-old girl named Josselin Corea Escalante was killed, and two other students were injured. The injured students were taken to Vanderbilt Pediatrics for medical attention. The shooter shot himself and died from the self-inflicted wound.

Wednesday marked a day of tragic loss for parents and students at Antioch High School. But this type of loss isn't completely unfamiliar to some parents.

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.

Two students are dead and another student was injured after a shooting inside Antioch High School on Wednesday.

A new violence and healing fund has now been set up to help the Antioch High School community after this week's deadly shooting.

Officials say two people were shot before the shooter turned the gun on themselves at Antioch High School in Nashville.

Nashville city leaders, local clergy, advocates for gun reform and Antioch High School teacher respond to school shooting at vigil, other responses.

Students and parents described a scene of chaos, confusion and terror during a deadly shooting at Antioch High School.

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