> It is very difficult to find the truth
Well, not for me. I was monitoring the war at that time and I saw a report by Lifenews (pro-Kremlin media) that the rebels shot down Ukrainian AN-26. It wasn't actually that shocking since it wasn't the first time it happened. But then the word about the Boeing came down and, oh my, I've never seen people erase their tweets and videos so fast. But it's the internet, not goverment controlled media, can't really erase everything.
https://www.youtube.com/watch?v=NsmVZmSBaEg
https://ankiweb.net