Nothing from either Russian or Ukrainian sources is believable.

It's always been a stretch to infer it was Russian military behind that shootdown. The smart money has always been on the Ukraine military or the rebels, and that is all this story says too.

Or was it with a Ukrainian owned missile "liberated" by the rebels?

It doesn't matter to me much how little or much the Russians, Ukrainians (rebels or nationalists) are asserting, since they are all biased to their own position. I am a child of a propagandist. I know just how carefully it can be crafted.

Now the infamous propaganda catapulter was no craftsman. Anyone who gave what the bush misadministration said even moderate thought would have seen it for what it was. But people believe what the want to believe; I prefer the truth.

That sort of thing was going on there at the time. But it is all speculation and confirmation bias up to now. This story is refreshing just because it seems to be empirical, not just speculation.

The Russians on this...and after reading "Bellincat"s" stuff I went with John Pilger on the Debunking of "Bellingcat's latest Report

So ...we can agree to disagree and that is fine. I can see the other side but the stuff with Nuland and what has gone on ...threw me to the Russian Side because, at this point, I believe little about our Foreign Policy given our Track Record wrecking MENA for so long now.

But, then I tend to be very skeptical of War Mongers and War in General..which I've always admitted.

If it was done deliberately, it would be with the idea of assigning blame to someone else.
If it was done accidentally, a targeting error, they are still going to want to blame someone else.
Even if they have no idea who did it, they are still going to want to blame their enemies.
We've seen lots of that, lots of games and secrecy and blathering along on the flimsiest pretexts.

Places like Bellingcat have a clear axe to grind, I discount them.

At the time Kiev was using aircraft to attack Donbass and Donbass was shooting at the planes, some planes were shot down. It's the vanilla explanation.

I don't see the Russian government having a motive, and they were not ready with a story. In fact nobody was ready with a story, which is one reason I think it was "accidental", if intended, they would have their story ready.

You can argue that Kiev did have a motive, but I'm not willing to infer that just because I have a low opinion of them, and they didn't have their story ready either.

And if it's accidental, it's probably the Donbass rebels, since they would have been the guys shooting at planes.

gave the "defense forces" a new toy to play with and they made a mess with it.

I can't bring myself to trust anything the Russian MIC has to say about this, any more than I would trust what the American MIC would be saying about Vietnam.

Though, it also takes care of the Russian claims that it was a Ukrainian fighter jet, which was pimped here with some fervor.