Fox News was mentioning that they only focused on the truck scenario because one happened to be there at the time. It might turn out that this guy doesn't even have a truck or wasn't even in the truck. They were saying that the police have no proof that this guy was in a truck.
Washington Times story this morning repeats the paper's claim yesterday that a white box van was seen at the scene of Monday's shooting:
Police are continuing to search for the white box truck that was seen leaving Leisure World, a retirement community in Aspen Hill, on Thursday after one of the fatal attacks. A similar truck reportedly was seen after the shooting near the Bowie middle school.