Somewhere it was mentioned the glass landed on a roof above ground level - and not on the ground. Still unclear how the windows appeared during the attack - we only saw them after the breach - which presumably involved some concussive blasts that might have blown out pre-shattered saftey glass.
True.
I posted on some other LV thread the link to GOOGLE MAPS that showed the portico roof extending quite a distance away from the building.
Glass would have to flutter like a falling leaf to make it over to the sidewalk/drive area.