Hi,
"How would you know that no elevator movement was executed? And what about the explosion: eyewitnesses - especially in plane accidents - see and hear a lot, but not what really happened..."
Redundant sources heard a thunder (two sound peaks) just before (2 secs) become a/c became visible (was flying behind the building) and, 4 seconds before impact noise.
"...I am sceptical, but open to facts, sure!"
I am gathering info, processing it in a team, ALWAYS OPEN MINDED!
Mac