How does Gillerman know at this point that it WASN'T staged??
FOX: Palestinians storming UN building in Gaza
Better define "staged".
Gillerman is saying Israel did bomb in that area but they were targeting rocket launchers and their Hezzie crews, not this building nearby that collapsed later, after the bombing.(A CNN reporter who witnessed the whole thing has already described this, but everyone is ignoring his report.)
But the tragic event could still have been "staged", by Hezzie knowlingly putting those people in that location from which to launch rockets. It is even possible they did something themselves to cause the building collapse...we don't know the whole story yet.