Why should we show you proof for something that no one has ever claimed?
You debunkers claim that it was the time of the fire, being 7 hours, which caused failure in this building. But you have no proof that it burnt in one place for 7 hours. NIST doesn't seem to think so.
Every structural member did not fail simultaneously
So how did the main block of the building fall as a single unit? How do you answer structural engineer Kamal Obeid when he says its impossible to have the complete failure as observed due to one column breaking?
I'll ask you also, what was supporting the bulk of the building such that it came down as a single unit if the factor of simultaneous collapse is to be discounted as you assert.