Oregon school shooter, 16, and armed bystander identified after four killed

The gunman who killed three children and a teacher at Silver Rail Elementary School in Bend, Oregon on Thursday was identified by police as 16-year-old John Griffin, who used a pump-action shotgun registered to his mother. The bystander who killed him was identified by his brother as Kaylub Giamanco, 36, a carpenter and father of two girls who attend the school. His brother said Giamanco was driving home for lunch, armed with a concealed weapon, when he heard gunshots and entered the school.