**No.** WTC 7 was NOT destroyed with explosives and the is NO evidence supporting such insane claims. 

It is really very simple: Structural members have forces on them and the forces are not in balance. The steel in a building like WTC 7 is being pushed and pulled in all kinds of directions. Figuring out how the loads move is the whole point of structural design. 

Her's the important bit: When you heat steel is gets soft and starts losing some of its strength and rigidity. In the short term the reduction in strength is not the problem. The real problem is rigidity: It loses its spring and starts moving around in ways it was not designed for. Not a lot, but add a little heat and let it bake for 6 or 8 hours and the building will UNZIP. Which is exactly what it did.

Fire resistant coatings for structural steel are required by building codes all over the planet for a reason: The structural properties of steel change when you heat it. Even a little.