Steven Jones ( former full professor of physics at Brigham Young University), Robert Korol (professor emeritus of civil engineering at McMaster University in Ontario, Canada, as well as a fellow of the Canadian Society for Civil Engineering and the Engineering Institute of Canada), Anthony Szamboti (a mechanical design engineer with over 25 years of structural design experience in the aerospace and communications industries), Ted Walter (director of strategy and development for Architects & Engineers for 9/11 Truth (AE911Truth), a nonprofit organization that today represents more than 2,500 architects and engineers) in a paper in Europhysics News (2016): “As for eyewitness accounts, some 156 witnesses, including 135 first responders, have been documented as saying that they saw, heard, and/or felt explosions prior to and/or during the collapses [14]. That the Twin Towers were brought down with explosives appears to have be the initial prevailing view among most first responders. “I thought it was exploding, actually,” said John Coyle, a fire marshal. “Everyone I think at that point still thought these things were blown up” …
Conclusion. It bears repeating that fires have never caused the total collapse of a steel-framed high-rise before or since 9/11. Did we witness an unprecedented event three separate times on September 11, 2001? The NIST reports, which attempted to support that unlikely conclusion, fail to persuade a growing number of architects, engineers, and scientists. Instead, the evidence points overwhelmingly to the conclusion that all three buildings were destroyed by controlled demolition. Given the far-reaching implications, it is morally imperative that this hypothesis be the subject of a truly scientific and impartial investigation by responsible authorities” (Steven Jones, Robert Korol, Anthony Szamboti, and Ted Walter, “15 Years later. On the physics of high-rise building collapses”, Europhysics News, 47 (4), 2016, page 21: https://www.europhysicsnews.org/articles/epn/pdf/2016/04/epn2016-47-4.pdf ).