Larry Silverstein bid $3.2 billion for the lease to World Trade Centers 1, 2, 4 and 5 in January of 2001. He received a documented $4.55 billion in insurance claims after the destruction.
Not only did he receive a $1.35 billion profit, he skipped his daily meeting at the top of the World Trade Center on September 11, 2001 to go to a scheduled dermatologist appointment. See the NYTimes article for verification on the insurance returns:
http://www.nytimes.com/2008/03/27/nyregion/27rebuild.html?_r=0
He stated that when he ordered people to “pull it,” around 5:25pm, he wasn’t talking about initiating a controlled demolition of building 7, he was ordering the firefighters to pull out of the building. According to the official NIST (National Institute of Science and Technology) report, all personnel had been pulled out around 3pm.
From http://www.nist.gov/public_affairs/factsheet/wtc_qa_082108.cfm
To provide ‘the other side’ of the debate. Here is a thread including statements dismissing conspiracy theories by the Fire Chief at the time, Daniel Nigro:
https://www.metabunk.org/threads/fdny-chief-daniel-nigros-statement-on-wtc7.2366/