“With certainty no one can answer that question
Post# of 123723
Except for the bereaved relatives and friends of the passengers.
Which leaves you with the 'certainty' of believing the preposterous, that they were all executed or that they survived and have remained silent despite the enormous fortunes to be gained by revealing the conspiracy.
I refuse to do anymore thinking that you should be doing yourself but which, sadly, you seem incapable of.