The Johnson City Police Department (JCPD) has charged Jordan C. Charles of Wyndale Road with aggravated assault after police say he threatened his ex-girlfriend with a gun.According to a JCPD release, officers responded to reports of shots fired in the Hillcrest area on Thursday.An investigation found Charles went to a former significant other’s home and started an argument, which led to him reportedly “[showing] a pistol to the victim while making threatening comments.”