they fire peaceful cities for creation of picture on TV....Then to accuse the Ukrainian army of death of peaceful population, and to justify the aggression, input of troops and help to the terrorists.

Russia is being provoked to join the war in the Ukraine. They know they are being provoked so they have to sit tight.

^^ Buk system?  

Well then... assuming that it didn't come from across the border, this is pretty humiliating show for Kiev. They have very poor record of their own weapons being captured by rebels.