 The suspect's 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. Coming up on WTOP, there are growing calls for President Biden to step down from his re-election campaign, and some of those calls are coming from Virginia. We'll get into more of this just ahead, 744.