Just a guess: we’ll never know the truth.
Just a guess: The Russians will blame it on terrorism no matter what and go all “Ivan the terrible” on anybody they think had anything to do with it.
CC
Just like: how did the bomb get on board Pan Am 103?
We may never be told the truth, a’la TWA 800, but an examination of the wreckage will reveal what caused the plane to disintegrate. Bombs leave residue and long term unrepaired damage, say from a tail impact during a landing 11 or 12 years ago, should be detectable. But whether any of the truth becomes public will be up to the Russians and they don’t exactly have a fabulous record on that score (not that we do lately either).