[Cobra Scott]

Could be a motorcyle as well.

[Grampa Dave]

Or as my wife pointed out one of the little motor scooters all over the DC area that the college students drive like a Vespa or one of the combo bike/scooters.

If it is a motorcycle, my probability that these killers are al Qaeda goes up immediately to over 90%. They train to use motorcycles with a driver and a shooter for hit and run shooting.

Nothing should be discounted at this time based on the nothing that we have been told.