Police say he ignited a plastic egg filled with plastic air-gun pellets in a flea market, hitting at least five people and causing alarm. It happened Saturday afternoon at a Saturday's Market in Londonderry Township, Dauphin County.
Peggy Beckley, the vendor manager, says market employees chased the man into the parking lot and held him for police.
In addition to the weapon of mass destruction charge, the teen was charged with risking a catastrophe, recklessly endangering another person, disorderly conduct and simple assault.
