I have a good friend of mine that works at the Unity Temple, and lives in a 4th floor apartment two blocks away from this site. His windows were miraculously NOT blown out, although many around him in the same building were. He said he had a front row seat in his living room watching the firefighters. He had just got home about ten minutes before this happened.
He sent me some pictures. I don't think he took any of these, but he found them surfing the web. Pretty crazy.