It is so difficult to ascertain the facts when there are probably no reliable sources …
Is it true that the Russians killed their own POWs?
Quoted from http://pasttense.nl/category/war/world-war-2/eastern-front/
"Considering only the sheer magnitude of the Second World War, it is surprising how little we know today of the horrible series of events that shaped the world as we know it now. As in fairy tales and corny Japanese RPG’s, we always refer to it as the war. We are told it was horrible. Period. I have always felt that there was more to war then just that. Anthony Beevor illustrates with a quote from a letter sent by a Russian prisoner of war:
[…] “rumors go that “our people” are coming closer. We can hardly wait. Perhaps we will soon meet our brothers and an end will come to our suffering. Shall we live through these horrible times? Shall we ever see our family again? We cannot hold out much longer. It is terrible here in Germany.”
That sounds nasty. The morbid thing is that as soon as prison or labour camps in German territories were “liberated”, most of the prisoners were shot. To Stalin and the communist party there were only those fighting for the motherland, and those collaborating with the fascists invaders. In the whole of the Second World War, the Soviet Union has never acknowledged “prisoners of war”. The world “horrible” does not suffice for describing being killed by your fellow countrymen out of hate and indifference in a war of total annihilation."