A Greene County High School student faces charges after allegedly displaying a shotgun during a dispute before school Friday morning. The Jefferson Police Department was dispatched to 1901 N. Grimmell Rd. at approximately 12:25 p.m. and opened an investigation into the reported incident. Officers determined two male juveniles were arguing before the start of school when a 16-year-old male wielded a large knife threateningly toward the other teenager. Law enforcement says the altercation escalated when the male grabbed a shotgun from a vehicle. Authorities later confirmed the student possessed a shotgun and ammunition, and the 16-year-old male was taken into custody. Charges of carrying weapons on school grounds, a class D felony, first-degree harassment, an aggravated misdemeanor, and manner of conveyance for an assembled gun, a simple misdemeanor, were forwarded to the juvenile courts. The teen was transported to a juvenile holding facility in Eldora.