[Alberta's Child]

The only problem with your "decoy vehicle" and "gun in the trunk" scenario is that there is a risk of being seen by random people at or near the scene. As I said earlier on this thread, even the most meticulously planned attack can't possibly account for something as unforeseen as a barking dog, a car broken down in the road on the escape route, etc.

[Grampa Dave]

Who is going to notice them? Dogs bark all the time particuliary after a gun is fired or a firecracker goes off.

They are looking for someone driving a white van.

Thanks to the cloak of silence on any real data about the appearance of the sniper, no one knows who or what to be looking for.