A 17-year-old from Sharon is facing charges after a stabbing Saturday night in Janesville.  Police responded to the call at 10:00 pm at a gas station/convenience store in the 3300 block of Milton Avenue.  Officers found an 18-year-old suffering from a wound to the face.  Witnesses offered a description of the suspect and his vehicle.  An officer spotted the vehicle traveling south on Milton Avenue.  The teen was arrested on a charge of Reckless Injury and was taken to the Rock County Jail.