If an active shooter enters a school, a simple device could save a life.
It's called the JustinKase. It looks into a door frame to keep a potential shooter out.
Justin Rivard invented it in shop class. He's a senior at Somerset High School near the Minnesota border.
"My shop teacher had said, if you see the problem, take your skills and try to figure out what you can do to help the problem," Rivard said.
The problem that Rivard saw is school safety. His solution is his unique door jam made of steel. It takes just seconds to put in and could prevent his classmates from being harmed.
"I think i really did it just because looking at the room, seeing all my friends, and just wanting to help them out and keep them safe so they can graduate and have a life everybody should have," Rivard said.
Rivard said the recent Florida school shooting was a shock, and the stories of survivors were difficult to hear.
"That's a big emotional part in this because they're a student just like me," Rivard said.
Rivard's push to try to prevent future shootings is gaining momentum. School's are taking notice. He's sold more than 150 of his inventions. Now, he's getting help from a local group.
"Don't mess with the grandparents, I'm going to tell you that," Beverly Doucette said.
Doucette and her group, Granparents for Action, met with Rivard on Friday.
"It makes you sick, it heightens your fear," Doucette said. "The worst part is, it's all talk."
Doucette said that the JustinKase could make a difference.
"There wasn't anything practical that was going to help reduce the indicent of my grandson's being shot or injured by an intruder," Doucette said.
The goal, to protect students at home and across the country.
"Hopefully every school will know the why behind it and know that it's there to save lives," Rivard said.