ElMondoHummus
0.25 short of being half-witted
my cousin was on the first tower hit. He was up on about the 8th floor or so (he's close enough to see down, but wasn't close enough to get out on time)
I was on the phone with him an hour before the planes hit, we have this daily ritual when he works. it was otherwise a normal day like any other.
about 40-45 minutes before the planes hit, he said he saw "fire fighters" enter the building carrying large black "duffel" bags, about a dozen of them.
What he described as men wearing fire fighter uniforms.
(rest snipped)
Even if this story was true - and I'm sorry, but you've provided zero corroboration of any of the points in your post - it doesn't matter. There could have been 100 men carrying duffel bags. Your cousin could have been on the 80th, not 8th, floor (presuming a typo on your part). They could have indeed arrived hours earlier and been loaded completely down with material. They could have made multiple trips. It doesn't matter. The overwhelming mountain of evidence says that the towers fell due to impact damage and fire, exacerbated by the design of the towers, the failure of the fireproofing, and the inability to actually fight the fire and mitigate the effects. So whatever those men were doing there - presuming they were there to begin with - they are irrelevant to the collapse, because nothing about the collapse indicates any involvement of any elements other than the ones already known.
So no, no one's able to answer the question of who they were. But there is one possibility that can be eliminated beyond doubt, and that's that those men - again, presuming they truly existed - had anything to do with the collapse of the towers. We can clearly and unambiguously eliminate the thesis that they installed anything that assisted the towers collapse by virtue of knowing that the towers were not brought down by incendiaries, explosives, or anything other than the fire and impact damage.