It was a brilliant demolition. CDI is the company that did it- there are videos of their work on YouTube- (they did the Trump hotel in New Jersey) and it’s impressive.
So awful that it had to be done, but they couldn’t recover more bodies until the rest came down and the possible storm coming made the timing necessary.
They really are the best in the world. Still a family owned and run company, FWIW, deeply religious.
https://www.controlled-demolition.com/about-us-explosives-controlled-demolition-implosion/history/