Building 7 was very likely a controlled demolition. They "Pulled It." Go look at which agencies the building housed. That will answer many questions. The official 9/11 story is a Fairy Tale...But not the good kind of Fairy Tale.
Despite your years of braying there still is no evidence of a controlled demo and only a shrill and desperate CT would claim a CD to have been likely.
Wouldn't plantedcharges have exploded willy nilly as the fires reached them, causing a very unpredictable (read: uncontrolled) demo?
You can twist all the fairy tales you like around who, what and where but without evidence of a CD you still have nothing but wild speculation, innuendo and assumptions. Nothing.
fires where mostly contained to the impact zone.. firefighters made into the impact zone reporting two small fires secs before the collapse
That was typical CTBS. Here's the truth (you will note the firefighters heard "creaking sounds," not explosions):
As the North Tower collapsed on September 11, 2001, heavy debris hit 7 World Trade Center, damaging the south face of the building and starting
fires that continued to burn throughout the afternoon. The collapse also caused
damage to the southwest corner between Floors 7 and 17 and on the south face between Floor 44 and the roof; other possible structural damage included a large vertical gash near the center of the south face between Floors 24 and 41. The building was equipped with a sprinkler system, but had many single-point vulnerabilities for failure: the sprinkler system required manual initiation of the electrical fire pumps, rather than being a fully automatic system; the floor-level controls had a single connection to the sprinkler water riser; and the sprinkler system required some power for the fire pump to deliver water. Also,
water pressure was low, with little or no water to feed sprinklers.
After the North Tower collapsed, some firefighters entered 7 World Trade Center to search the building. They attempted to extinguish small pockets of fire, but low water pressure hindered their efforts.
Over the course of the day fires burned out of control on several floors of 7 World Trade Center, the flames visible on the east side of the building. During the afternoon, fire was also seen on floors 6–10, 13–14, 19–22, and 29–30. In particular, the fires on floors 7 through 9 and 11 through 13 continued to burn out of control during the afternoon.
At approximately 2:00 pm, firefighters noticed a bulge in the southwest corner of 7 World Trade Center between the 10th and 13th floors, a sign that the building was unstable and might collapse.
During the afternoon, firefighters also heard creaking sounds coming from the building. Around 3:30 pm FDNY Chief Daniel Nigro decided to halt rescue operations, surface removal, and searches along the surface of the debris near 7 World Trade Center and evacuate the area due to concerns for the safety of personnel. At 5

33 pm EDT the building started to collapse, with the crumble of the east mechanical penthouse, and at 5

10 pm EDT it collapsed completely. There were no casualties associated with the collapse.
7 World Trade Center - Wikipedia, the free encyclopedia