I was told by a Polish worker that WWII the Poles fought the Germans for revenge and the Russians for pleasure. There is no love loss between the Poles and Russians. The Germans occupied the Katyn area in the summer, the Russians were there in the winter. The bodies had winter clothing, but it was the Russians who said the Germans did it, and it was a cold summer when they did, thus explaining why they had on winter uniforms. ???? Riiiight.
When the Russians occupied the area.
The Germans overran the area in 1941.
Vasily Blokhin and his NKVD butchers didn't clean up that part of their mess.
Good news is that he drank himself to an early grave.