When James Masterson heard the news that there had been a shooting at the school his dad, John Masterson, teaches at, he went numb.
Immediately, he picked up the phone and called him.
"It was a conversation that lasted maybe 15-20 seconds," said James. "And it was him saying that there was a shooting at the school, I think I stopped the shooter, and I can't say anything else because the police are right there getting ready to start questioning him and everything."
John Masterson, an 8th grade social studies teacher, intervened when a 12 Year old boy went into Berrendo Middle School and opened fire on classmates.
John put himself in the line of fire, convincing the boy to put down the gun, ending the rampage.
"I couldn't wrap my mind around it that he did that," said James.
Though amazed by his dad's bravery, James says he honestly wasn't all that surprised.
"The truth is he could've been killed, but he's such a natural protector. Anything he does, he loves everybody."
National media has hailed John as a hero.
James says, his dad doesn't want that title, that he was just doing his job.
"He's just too humble of a man to ever put the spotlight on himself. And because of that he's just ready to move on and go back to teaching and being John Masterson from Roswell, New Mexico- the guy that nobody knows."