Oregon elementary school shooter John Griffin II

The 16-year-old male who opened fired at Silver Rail Elementary School in Bend, Oregon, on Thursday has been identified as John Griffin II.

John Griffin was a former student of the school, according to police.

The hero who fatally shot John Griffin has been identified as Kaylub Giamanco.

Kaylub Giamanco happened to be driving by the school when he heard shots fired. He ran into the school and fatally shot John Griffin.

Giamanco is a carpenter and a father of two girls who attend Silver Rail Elementary School.

Three children, ages 5, 8, and 11 were killed in the shooting. One teacher was killed.

A 7-year-old child and another teacher were injured.

NBC News reported:

A teen accused of gunning down three children and a teacher at an Oregon elementary school on Thursday has been identified as John J. Griffin II, three senior law enforcement sources briefed on the investigation told NBC News.

It was not immediately clear if the 16-year-old alleged gunman had a connection to Silver Rail Elementary School in Bend, where officials said an armed bystander fatally shot the teen and interrupted the shooting spree.

Two senior law enforcement officials told NBC News that the teen’s mother purchased the long gun he used around his birthday in August.

Victims included children ages 5, 8 and 11. A 7-year-old and a teacher were critically injured.