 Suspect been transported to an area hospital with serious injuries. An identity of the suspect has not yet been released, and it's unclear at this time if he had a weapon. Arlington County police are investigating the incident. In Roslyn, Grace Newton, WTOP News. A U.S. marshal was involved with a shooting early this morning in northwest D.C., also involving a carjacking suspect. D.C. police say two deputy marshals were parked in separate vehicles on 11th Street between V and W Streets in northwest just after 1 a.m.,