A 17-year-old boy who opened fire in his Nashville high school's cafeteria fired a total of 10 shots from a 9 mm pistol within 17 seconds of entering the room.

The teenager who fatally shot a student at a high school in Nashville, Tennessee, livestreamed part of the incident, according to the platform he used, and he was influenced by internet content that authorities described Thursday as “harmful and objectionable.

Nashville schools officials have faced questions about why new technology that uses a school’s cameras and AI capabilities to detect weapons didn’t trigger a warning on Wednesday when a student opened fire with a gun inside a school cafeteria.