The 15-year-old Perry Hall High School student suspected of shooting a 17-year-old classmate on Monday will face attempted first-degree murder and first-degree assault charges, reports ABC News .
Robert Wayne Gladden Jr., who is being held withour bail, is accused of opening fire in the school's cafeteria on the first day of school, critically wounding another student and prompting the lockdown and evacuation of campus. Two school staff members reportedly tackled the shooter and pinned him up against a vending machine until police arrived on the scene.