You are missing the point.
"How did they "pull it" on such short notice?
1) Who pulled it? Firemen do not demo buildings
2) How was it brought down? Explosives?
3) When were the explosives placed in the building? That morning?
4) How long had the explosives been in the building? Were they always there?
5) Lease agreements are specific to mention dangerous are not allowed…do you think employees would knowingly work in a prewired building with explosives?
The demolition WAS PRE-PLANNED…therefore the whole event(s) that day were coordinated with Larry