Dr. Leroy Hulsey, Dr. Zhili Quan, and Professor Feng Xiao (Institute of Northern Engineering, University of Alaska Fairbanks) in their detailed Final Report into “A structural reevaluation of the collapse of World Trade Center 7”(2020): “EXECUTIVE SUMMARY. This report presents the findings and conclusions of a four-year study of the collapse of World Trade Center Building 7 (WTC 7)—a 47-story building that suffered a total collapseat 5:20 PM on September 11, 2001, following the horrible events of that morning. Figure E.1 shows the layout of WTC7 in relation to the World Trade Center complex prior to September 11, 2001.Figure E.2 showsthe structural layout of Floor 13.Figure E.3 shows the finite element model of WTC 7. This study was conducted by a three-person team of researchers at the University of Alaska Fairbanks (UAF) Department of Civil and Environmental Engineering with funding provided by Architects & Engineers for 9/11 Truth, Inc., a 501(c)(3) nonprofit organization whose purpose is to conduct research and educate the public about the World Trade Center building collapses on 9/11.According to the National Institute of Standards and Technology(NIST)—an agency of the U.S. Department of Commerce that investigated the three building failures on 9/11—the collapse of WTC 7 was the first known instance of the total collapse of a tall building primarily due to fires. However, many independent researchers have studied the collapse of WTC 7and assembled a body of evidence that raises questions about the validity of NIST’s conclusions. The objective of this study, therefore, was threefold: (1) Examine the structural response of WTC 7 to fire loads that may have occurred on September 11,2001; (2)Rule out scenarios that could not have caused the observed collapse; and (3)Identify types of failures and their locations that may have caused the total collapse to occur as observed… It is our conclusion based upon these findings that the collapse of WTC 7 was a global failure involving the near-simultaneous failure of all columns in the building and not a progressive collapse involving the sequential failure of columns throughout the building” (Dr. J. Leroy Hulsey, Dr. Zhili Quan, and Professor Feng Xiao (Institute of Northern Engineering, University of Alaska Fairbanks) , Final Report. “A structural reevaluation of the collapse of World Trade Center 7”, March 2020: https://files.wtc7report.org/file/public-download/A-Structural-Reevaluation-of-the-Collapse-of-World-Trade-Center-7-March2020.pdf ).