I think that is a still made from a film I've seen on U-Tube. German civilians returning to Germany at the end of the war, shot by Czech militia , then run over by a truck. If you look close you can see where most of the bodies have a common bend that lines up, that's where the wheel of the truck rolled over them.
Some people did not fight during the war but began to abuse the losers when the war was over.
As far as I learned, Chiang Kai-shek and Douglas MacArthur did not allow his people to do so.
They understood the chivalry well.