why do you think there's more than one?
These shootings are being done in broad daylight. The last one was done within 50 yards of a police officer. I think there is at least one shooter, and one driver and lookout. While the shooter is selecting a target, the driver is looking around to make sure the coast is clear, and the escape route is open. As soon as the shot is fired, the escape begins. One shooter would have to put away the weapon and then make sure the escape route was still open. The fact there are no reports of a vehicle speeding away would indicate to me that it is almost as if they come to a stop at either a stop sign or a stop light, shooter fires, and the vehicles moves away normally, no wasted time.
And, if there is, it seems they'd be twice as likely to get caught
There are many crimes committed with more than one person. I think you would be correct if this was a normal crime but I still believe it is a sleeper cell that has been activated,
Many posters thinks the sniper's shooting from inside a vehicle or hotel room. I'm guessing he's standing outside, in the woods, waiting for people to come into position at gas stations where they're easy prey. If so, and there's two, the driver's waiting down the street, while the sniper calmly walks to the car. If that's the case, a gun would be in plain view. I have no knowledge of guns. But if he's walking around with it, then it'd have to be smaller rather than larger, so as to be hidden while the guy walks.
They are not outside the vehicle, just for the very reasons you suggest. They are not in a building as this would expose them to being seen. No, they are in a vehicle. One that has been specially prepared. With a little thought I think I could design a shooting perch inside a truck that would not be noticeable unless you were looking for it.
