Once again, in the Manassas incident, no one saw anyone FIRE from a White Dodge Caravan, and in the (single) Montgomery County witness that saw a white vehicle, after the initial media confusion got sorted out, they apparently saw a white Mitsubishi or Isuzu panel TRUCK with lettering on the side.
This white vehicle business is going to be self-reinforcing, it seems. And simply leaving the gas station right before the shot, or driving by, is seemingly being interpreted as "fleeing."
Most recent Washington Post article includes info that the DC police think they've identified where the shot was fired in the one shooting that was just inside DC...the one that killed Pascal Charlot....dogs alerted on some gunpowder residue.
http://www.washingtonpost.com/wp-dyn/articles/A4858-2002Oct10.html
Which would mean THAT shot wasn't fired from inside a vehicle.