And for those involved in the blame game, whether there's "little doubt" in your mind or not - remember that Lockerbie happened 6 months after the US shot down an Iranian airliner.
Then after several years of legal procedures, most of which have now proven to have been faulty and/or corrupt and directly in breach of international law, Libya got the blame. Because someone needed them to be blamed.
As indeed someone had previously needed to blame Libya after a known Congolese terrorist brought down a French airliner going from Brazzaville to Paris, with zero link to anything Libyan.
As of now, the West's propaganda machine is still in cold war mode, so will take any opportunity to blame Russia for stuff (even though Putin was one of very few to recognise that the Libyan "revolution" was not all it might have seemed. And he was right about that).
So don't be too hasty.......