A Fairfax County, Va. police officer checks a pickup truck stopped on Interstate 395 in Springfield, Va. Friday, Oct. 11, 2002 as police searched for a sniper on the major interstate after a van was seen leaving the scene of a deadly shooting at a Virginia gas station Friday morning. It wasn't immediately clear if the shooting near Fredericksburg was linked to nine sniper attacks that have left seven people dead in the Washington area. (AP Photo/Rob Ostermaier) - Oct 11 3:44 PM ET