The way I picture it, I see a balcony where when shots are fired, everyone either started moving away from the guy shooting, or got down. If the shooter was still shooting, then there was a clear target to shoot at.
Which is safer, trying to take him out, or letting the guy continue shooting (especially if you have no idea if he is after one target or many)?
If a guard had a shot, I think he had to take it.
Could be. We'll see when more of the facts come out.