This is the leaked internal report about the WTC 7, the third of only three steel framed buildings to ever collapse as a result of minor fires. In fact the report clearly states that the fires were
no longer visible. At any given moment there was only 20 minutes worth of fuel and the office fires had burned themselves out. The building behaved normal under the circumstances until just before the collapse when jets of fire shot from the bottom of the building.
The building collapsed in 6.5 seconds freefall time into its own footprint 6 hours after the two Twin Towers. Until now no attempt has been made by NIST to explain this collapse.
I down loaded more of this report and will upload it to this site as I read it.