I saw a documentary yesterday night, and I heard some eye witnesses say they could hear the sound of a body smacking to the ground nearly every second. God, that's horrible.
I also saw some footage of a man right below the plane's impact, who actually wanted to safe his own life by climbing out of the building to a lower floor..
But he lost his grip.. It horrifies me when I try to imagine what he must have been feeling as he felt himself slipping away...