[QUOTE][may have been unseated and standing, kneeling or in some other position at each end of the cabin. /QUOTE]
Lets go back to basics. When is the last time you penetrated a line of thunderstorms, and did not at minimum provide flight service with the heads up, ding ding, seat belts sign illuminated, or command Flight Attendants be seated. Now, given that the flight attendant stations at L1 were found and recovered indicating unoccupied, and that all pax would not be seated and belted, and that FA were not seated at assigned stations seems strange. This leads me to believe that what occured at altitude happen suddendly and with out cockpit warning to the cabin. Anyone in the back would have to quickly find seat refuge in any available seat, or would have been left with no seat and at the mercy of the aircraft movement. Not easy to climb down from the ceiling and into a seat. I think that what ever happened, that where ever you were in the airplane, is where you remained until the airplane contacted the water.
ww