Dear @lordbutterfly,
you will certainly like the presentation of the forensic evidence exposed by Dr. Judy Wood: no speculation, but a conclusion based on facts, by joining all the dots?

Here are some of her quotes:

"We cannot determine who did it until we determine what was even done and how it was done. Yet before noon on 9/11/01, many of us were told who had done it.That is, we were given a conspiracy theory, not the result of a scientific investigation.
So, what's wrong with that? Nothing, except that it qualifies as a falsehood, being unverifiable by evidence as to what exactly happened, or how, let alone by whom. Doing such a thing, going after who did it before establishing what happened and how it happened, is a way of ensuring that the truth will be hidden for a very long time, if not forever. It is called a cover-up. I will not be part of a cover-up. As Martin Luther King said, 'A time comes when silence is betrayal." That time came for me at 1:32 A.M. on November 3 2004. The next day, I told my mother that I had to look into what happened on 9/11/01 because my conscience left me no other choice. She replied, "If you do that, you won't have a career." I answered, "If I don't, no one will have a career." Something extraordinary had taken place, yet no one else was asking, 'Where did the towers go?" With a basic knowledge of engineering mechanics and physics, we can prove that the collapse of the World Trade Center twin towers could not have happened for the reasons given in official accounts or in most alternative "9/11 truth" explanations.The physics of the controlled demolition models, the airplane fuel models - they do not work. That's what this book is about: Looking at the evidence to discover what did happen. Let us now turn to focus on the true nature of the destruction of the World Trade Center towers."
(source: Where Did the Towers Go? - Dr. Judy Wood)

"If you listen to the evidence carefully enough, it will speak to you and tell you exactly what happened. If you don’t know what happened, keep listening to the evidence until you do. The evidence always tells the truth.
The key is not to allow yourself to be distracted away from seeing what the evidence is telling you."

"Empirical evidence is the truth that theory must mimic."
http://wheredidthetowersgo.com/wp-content/uploads/2010/12/FOREWORD-PREFACE_3q.pdf

I wish you to realize what happened, thanks to your predisposition not to believe.