J, I have read the report (have you?). I think it quite likely that WTC7 was subjected to emergency demolition, rigged on the afternoon of 9/11. The report has much interesting information eg. the court cases and the wildly uneven distribution of loads on the columns (crap design), but also some serious problems, eg. UAF worked from the plans, and without the building debris you can’t prove that the building conformed to the plans; WTC7 might even have been missing some critical components.
Geoff, I answered. WTC7’s outside and roof fell faster than a typical controlled demolition because the core fell first and pulled the shell down after it.