 A portion of the westbound Leesburg Pike in Fairfax County is now open. It was closed for a time today following a deadly crash involving a pedestrian. A woman was killed and hit by a car while walking in the area of Leesburg Pike at Downey Drive around Great Falls around 4 a.m. Fairfax police say she died at the scene. The driver who struck her did stay at the scene. Police are investigating.