Even the Janitor stated it looked like a bomb had gone off down there and it certainly wasn'T from the jet fuel that burned off above. He further stated bombs were going off in the basement before the first plane hit.
Ok, case solved, the janitor has the proof. I'm out...
In the first reports I heard on the radio an eyewitness said a DC3 flew into the first tower.
It's About Sharing, the construction of the towers was unlike anything that had ever been built. They did survive the impacts of the plane which most buildings would not have. The way the floors were attached to the uprights was such that once the first floors lost the integrity of their attachments due to the heat, physical damage and added weight of the plane, the weight/ momentum of those floors caused the failure of the floors below in rapid succession. Again the construction of the towers was unique. The second tower that was hit came down first because of the way the plane hit it which caused more physical damage to the structure. That damage was obvious to see.
But you know all this.