9/11: What was the reason of that “global failure” in its structure? Fire was not, says a university study

Fairbanks University, Alaska: A study paid for by 3000+ engineers and architects concludes that the official version including the NIST report cannot be correct: 

 WTC7 collapse was NOT because of fire… :

“The principal conclusion of our study is that fire did not cause the collapse of WTC 7 on 9/11, contrary to the conclusions of NIST and private engineering firms that studied the collapse.

The secondary conclusion of our study is that the collapse of WTC 7 was a global failure involving the near-simultaneous failure of every column in the building.“