The building was a 47-storey steel framed building on the north side of the Trade Centre. The building was NOT hit by planes. It was NOT damaged by falling debris from the twin towers. It appeared to be on fire, on only two floors - the 11th & the 16th - and both fires gave the appearance of not being towering infernos. And yet, some 7 hours after the towers collapsed, this steel skyscraper suddenly and inexplicably collapsed, imploding at free-fall velocities, in under SIX SECONDS and without warning. It was the first and only example of a steel-framed building collapsing after two of its floors were seen to on fire. In fact, the official report stated, in essence, that the mechanism of the failure is largely unknown and that 'how the collapse of an unknown number of gravity columns brought down the whole building must be explained'.Easy ... a deliberate and premeditated action called controlled demolition (just like its bigger brothers WTC 1 & WTC 2)