Antioch High School shooting: Student opens fire on two pupils, then turns gun to himself

​A student shot two other pupils in a Tennesse high school cafeteria shootout before turning the gun to himself inside the cafeteria. Antioch High School where the incident took place was immediately placed on lockdown because of the sudden shooting. The Tennessee Bureau of Investigation, Tennessee Highway Patrol, Tennessee Homeland Security and the Bureau of Alcohol, Tobacco, Firearms and Explosives have said they also are responding.