 Before, he was shot by Metro Transit Police. Arlington County Police say 30-year-old Mark Anthony Johnson Crestwell is now facing charges of unauthorized use of a vehicle and resisting arrest. They say he was shot and wounded at about 11.30 Friday morning by a Metro Transit Police officer who saw him trying to carjack someone not far from the Roslyn Metro Station. Johnson Crestwell remains hospitalized, but in stable condition. Arlington County Police are investigating the incident.