Following the tragic incident at a school in Madison, Police Chief Shon Barnes has revealed that investigators are working closely with the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) to determine the origin of the gun allegedly used by a 15-year-old student.
The shooting, carried out by the student identified as Natalie Rupnow, resulted in the deaths of two individuals and left six others injured before Rupnow took her own life.
