Why would I need to know the motive to know that the building had been demolished?
You inability to figure out motive is indicative of your failure to understand 911 and not answer the OP.
(When attempting to answer this very straightforward question, try keeping it as concise and simple as possible)
What is so difficult about believing that a group of religious fanatics, who have a history of committing atrocious terrorist acts, committed an atrocious terrorist act?
Why ... ?
Yes, you don't have any clue what happened.
Not difficult to believe 19 terrorists did 911, and caused all the damage with 4 planes. 911 truth, the truthers can't comprehend the event. Drew, will you get on topic? This is a simple question, Drew, a rational person, a critical thinking, a skeptic, can answer the OP; why have you failed? Drew answer the question please.
The big clue, when you combine the evidence, you are left with 19 terrorists. I you think about it, people who sign up for a flight, are known. The 19 terrorists signed up for 4 flights; it get too simple to figure out who did 911 after that; only 911 truth can mess this stuff up, and they do it with out thinking. I have been briefed before 911 on terrorist; when the second plane hit I was thinking UBL; In fact, I thought the rick kid (UBL) took his money bought planes and loaded them with explosives! When I did the physics and learned the planes were stock airliners hijacked, the physics explained the impacts; as simple as E=1/2mv
2 (velocity squared was the reason for the kinetic energy being large)
Drew, are you posts short because you don't have evidence?