these Russians look to have been shoot after surrendering.  

summer on the Ostfront

This picture shows Hauptmann (Captain) Günther Viezenz (1921-1999), commander of 10th Company, Grenadier-Regiment 7 of the 252nd Infantry-Division. No German soldier was awarded more Tank Destruction Badges than him: he destroyed single handedly 21 enemy tanks with close combat weapons such as handgrenades, panzerfaust, t-mines or hollow charges. 21 destroyed tanks mean 4 bagdes in gold and one in silver. After the war Viezenz joined the Bundeswehr and retired in 1980 as a Colonel.

Hauptmann Günther Viezenz - Tank killer No. 1

The caption for this photo stated that he was the only surviving member of his unit. Hes standing at the cemetary of his fallen commrads. Powerful yet lonley photo