MR LAX
You see the point I am trying to get at is that in order for them to shoot downwards on all the evidence we have heard so far they would have had to in some way be able to position their firearm over the edge of that level that you would normally have hidden behind so that the barrels could point downwards. And then in order to aim that their bodies would have, portions of their bodies must have been over the edge of the parapet. That is just plain logic isn't it?