Long time lurker here. Had to register to express my condolences to the relatives of those on board if any scan this forum in search of answers. I hope that a small crumb of comfort can be found in knowing with only seconds to impact everything was completely normal.
Also to say this to some members here - please stop with the conspiracy theories, It's all getting Sandy Hook at this point. The relatives have confirmed this is legit, and that should be the end of the matter.