Well, 7 was inside the Beltway and 2,3,4 and 6 are either just in or just out.
Well, the info on ballistics is okay, but the fact that they used an image of a military marksman is just another example of the press implanting their personal bias. Sure, the sniper could be ex-military, but at this point we have no way of knowing.
2,3,4, and 6 are outside the Beltway. None, aside from #7, are "just in". Not even one.
My point was that the shooters are staying outside the Beltway, in fact entirely off the Beltway. They are looking for spots with easy, quick egress. They can't get that inside I-495, and for precisely the same reason they're afraid of getting stuck in Beltway traffic.
Yes, they pulled it off on the first day. They had the element of surprise. But they now seem to recognize that any future attacks on, near, or inside the Beltway will be their endgame.