What would have seperated the vertical tail cleanly (no burns or symptoms of explosion) PRIOR? IMHO, the explosion ocuured first. It threw the plane VIOLENTLY sideways or even caude the plane to turn sideways against the wind. The resultant forces caused the composite tail section to give way.
Without a rudder or vert stabiliser, the engines became free to thrust in any direction as the plane twisted in another, causing both engines to shear from their mounts.
The question is, what is the nature of the explosive which caused the initial "sharp turn to the left."
Isn't it odd that nobody to our knowledge used a cell phone before the plane plummeted? Did this happen that quickly? If there were cell phone records, at least we could have found out some things from the back of the plane inside while the pilots were in the cockpit wrestling with the aircraft. The stewardess on an AA flight on 9-11 called in when some innocents were being systematically killed.