I'm not saying this is what happened there.
But I just want to pass this on. There's a video on youtube taken right after the accident [I'm not including that as i have not watched it, it would be too sad].
Gunfire can be heard, and some experts discerned THREE individual gun shots.
European observers construe that there were three passengers still surviving. However, someone, attributed to "the army" - whose army? - shot the 3 pax because they would have revealed what happened aboard the aircraft in its final minutes.
Rumor has it that the eyewitness who filmed the video was then attacked with a knife, taken to hospital, and died.
[I say rumor because sometimes these claims can get carried away: there is not yet a name of the person to substantiate that he was killed as of yet].
Some aware Europeans believe that owing to Poland's pronounced success in steering clear of the IMF and incurring more debt to international financiers, that the Bilderberger-type global elite arranged this to get rid of the entire rulership of Poland at one fell swoop.
This Polish government was anti-abortion, etc. Hence the dark forces working through these power elites would have hated that opposition to their plans for population control and the forcing of all the usual liberal - leftist - anti-religious agenda on every country.
Just a speculation to consider. True or not I don't claim to know.