1. The Russian troops with the rebels (trained on Russian military base near Ukrainian border) had intel about Ukrainian military transport Il-76 scheduled for that day (indeed scheduled, but canceled) to drop (from altitude to avoid MANPADS, with varying success) ammunition and food for Ukrainian troops surrounded then near Russian border. A spotter in a quiet rural area heard a plane invisible over clouds. This seems incredibly unprofessional, but nothing unheard of for Soviet/Russian army.
So 2 questions
Was Ukraine using civil airliners as a shield or was the Intel leaked by Ukraine to trick the russian or pro Russians to fire at a civil aircraft?
Either way the worldwide condemnation of Mr Putin is secured.
I personally think there is a lot more to this than just an accidental shot down.
Politics in these countries is a lot more tactile than western Europe, as the Nemsov case shows!
D and F