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This is from the same link as the last post.
The most obvious feature that indicates a controlled demolition, is the almost even collapse of the building. This shows that all the supports for the structure failed at the same time. Some coincidence eh? This video evidence is so compelling that no other evidence is really necessary (many thanks to http://www.whatreallyhappened.com/ and J M King aka PlaguePuppy for the videos and animated-gifs). This is a looooooong page, be sure to keeep scrolllling down. Remember the red text is unofficial commentary inside the official report.