The boy had, himself, been a shooting victim last year.
From an article:
Lt. John Walker said the teen was involved in a fight with another student Wednesday morning at KIPP DuBois Collegiate Academy at 5070 Parkside Ave.
After the fight was stopped, the other student told security staff the teen was carrying a weapon in his backpack, Walker said.
When staffers asked the student to open his backpack, he refused, and the school called police, KIPP Philadelphia CEO Marc Mannella said.
"They were here instantaneously. We were incredibly grateful," he said.
The student did open his backpack for police, who found a .45-caliber handgun inside, Mannella said.
Every gun in the hands of a child must first pass through the hands of an adult.The student was shot last year in Northwest Philadelphia, a law enforcement source said.Walker said police believe the teenager was hiding the handgun from a parent and had no plans to use it in or around the school.