Can anyone verify? This is an oh shit moment for me.

From Americanmafia.

" Bobby Boriello was himself a hitman of accomplishment, and will be best remembered for his role in the 1990 murder of Gambino associate Louis DiBono. DiBono was one of just several Gambinos whose lucrative businesses the greedy Sammy Gravano coveted. DiBono had secured, most likely through bribery, the lucrative contract to install fireproofing foam on the infrastructure of the Twin Towers of the World Trade Center, while they were being built and afterwards as routine maintenance. DiBono, however, found that he could save millions by cutting corners and not properly applying the fireproofing foam throughout the building. His criminal negligence was not unnoticed by various officials but went uncorrected for decades. Experts have testified in recent years that had the Twin Towers been properly fireproofed, they probably would have collapsed due to the events of 9/11, but still would have stood many hours longer, thus allowing the rescue of hundreds of firefighters and other rescue personnel, as well as those trapped inside the burning buildings, who otherwise perished on that Fateful day.
"

Source: http://www.americanmafia.com/Feature_Articles_315.html

No source cited so it could easily just be words but if that's true, holy shit.