Wisconsin High School student invents classroom door stop

From Gateway Pundit:

A Wisconsin high school senior and Army recruit Justin Rivard invented a door stop that prevents killers from entering classrooms.
Justin created the “JustinKase” two years ago when he was just 15. The device does not allow a door to open even a crack which means students and staff will be saved during emergencies.

His own school already ordered 50 of the “JustinKase,” one for each room in the building, according to KARE.

Justin is entering the Army this year after his graduation.