the emerging pictures and information on the wreckage spread tend to suggest a high altitude break up. ...
Since it is now reported that bodies are being found up to 8 miles from wreckage, a high alt breakup is quite likely
As to possible reasons- I note that the upper part of tail in front of pressure bulkhead is a very clean break along a panel- frame join. I believe this infers a tensile type break on the upper half ( tail cone- bulkhead generally bending DOWN assuming level - upright flight for reference ).
This could infer a major change in elevator position developing enough force to tear the tail off. Perhaps a total control servo - cable- failure or hard over ?
Thus we must simply wait till at least a preliminary readout from FDR and CVR is public.
Stuff happens !!
