Johnstown police say four juveniles are facing charges after driving around the city, waving around airsoft-style pellet guns and shooting a bicyclist with them, which resulted in a lockdown at Greater Johnstown schools. Police say just after 10:30 a.m., Johnstown school officials reported that a staff member witnessed four black males drive by the middle school, while the students were outside, waving a gun out the window of the vehicle.