[Philysteak527] modified a Nerf rifle, making it semi-automatic thanks to the powers of compressed air. This is not a simple ... and uses a CO2 canister and solenoid valve for the firing action.

Officers found “a pellet/BB-style CO2 rifle” with the 16-year-old, who was pronounced dead at the scene, police said. It appears the man and teen didn’t know each other, police said.