15-year-old student shoots teacher, 3 classmates at American school in Mexico

A 15-year-old student opened fire Wednesday at an American school in Monterrey, northern Mexico, gravely injuring three students and a teacher before turning the gun to himself. The shooter died at a hospital and three of the victims are "fighting between life and death," according to the latest update by Nuevo Leon Gov. Jaime Rodriguez. They were all shot in the head. -- More...