Not to sound too unfriendly myself, but what does that have anything to do with it? The crew were pilots, trying to make a living - same as many on this board. The country of their birth should have nothing to do with it.
It may turn out to be an old aircraft coming apart and just rotten luck - but the powers that be should make an effort to find out, if only for the sake of improving knowledge of how things can go pear-shaped - to say nothing of the crew's families.