Kaylub Giamanco, a 36-year-old father of two daughters attending Silver Rail Elementary, used a concealed-carry handgun to kill an alleged 16-year-old who had slain four people with a pump shotgun given for his birthday and still possessed unused ammunition. He drove onto the lawn, took his gun, entered through a window the attacker had shattered, and fired at close range before calling mother Kenda Freeman to say he had killed the gunman. Police first termed him a bystander, and Freeman said he had acted as needed and spared many lives.