reprogrammed from 20, excuse me 38,000 feet to 100 feet another piece of the puzzle coming together. this was a deliberate act. >> absolutely. and it's scotched any ideas that somehow there was a medical emergency, that he had slumped on the controls. nothing like this. what we heard from the prosecutor was that he had dialled in the descent. and we wondered how they knew about this because they haven't got the data recorder. well it is information that comes from the transponder or one of the transponder frequencies where you can see the, on the list of data it goes from 38,000 to 96 is what he put it. and then sits back calmly as we're led to believe and does nothing. this i was prepared to sort of give the benefit of the doubt in every different direction until we heard the prosecutor until we heard the airline ceo saying i'm speechless that an aircraft