Police have arrested a Waterloo teen following a Monday evening shooting. 17-year-old Corey Dunn, Jr. is being charged as an adult for intimidation with a weapon and gang participation.Police said there were no injuries, but gunfire hit a passing vehicle with three people inside. Officers found several shell casings in the area. A witness reported seeing a vehicle drive from the scene and a person throw a handgun from the vehicle. Officers arrested Dunn, who was in the vehicle. They said he is an associate of the OTB street gang, and the shooting was part of a feud with a person from another gang.