What can be learned from the demolition of the 41-story building (The Bankers Trust or the Deutsche Bank Building) adjacent to the WTC towers?

Perhaps this how B7 would have been taken down, had it not been demolished on 9/11/01.

Questions about this demolition remain. Why are there now lawsuits? Why was there a fire during the work? What is the mystery about the company selected to be involved in the demolition, which now no longer exists? Or are these events just 'all in a day's work' in New York City with it's corruption and scandals? What was the full extent of the body parts discovered there?

Here are a few parapgraphs from one story: