I haven't checked through this entire thread to see if this has been posted.
Part of a news segment I heard over the weekend said that it had been determined that the copilot had engaged the feathering mechanism prematurely... and of course, doing that as the rocket engine is in full tilt boogie is going to rip those wings off.
A woman who knew the copilot and who saw the wreckage was being interviewed by phone on CNN Friday afternoon, and said his 'chute did not deploy... said what she saw was very disturbing... said something like "he was in his seat, but not all of him was there."
Check this video I found in a search... especially beginning at around :36 ... photo shows the craft coming apart from a ground camera. A closer, slightly clearer version of that shot appeared on the CBS Evening News.
Edit: Listening to the guy's voice, near the end of the video, it sounds like he's a conspiracist. I posted the video for the visuals only. 