The Metro Nashville Police Department opted to permanently add a third school resource officer to Antioch High School as students return Tuesday.

Police say a shooting at a Nashville high school has left one student dead and another woulded. Metro Nashville Police spokesperson Don Aaron said during a news conference that the 17-year-old gunman later shot and killed himself with a handgun.

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.