Traffic stalled on southbound Interstate 95 in Northern Virginia with delays stretching from Lorton to Dumfries following a deadly crash Tuesday. Virginia State Police are investigating a crash that happened just after 2:30 p.m. on the southbound 95 Express Lanes at the 152 mile marker in Prince William County. An SUV that was stopped on the right shoulder was struck by the driver of a work truck that went off on the right side of the road. The …