The Nashville high school where a teen gunman killed a fellow student last week had no metal detectors — apparently because administrators think they could be racist. A former board member told The Post that the misguided administrators are responsible for keeping them out even over many parents’ objections.

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,