[Jim O]

Both of those photos are in "The Eastern Front in Photographs", by John Erickson (same author as "The Road to Stalingrad" and "The Road to Berlin").

The caption on the first one refers to execution of Soviet POW's. Although the one nearest the photographer looks to be a "civilian" there are clearly many Soviet soldiers in the background, probably awaiting their turn. The second photo is of partisans being hanged in the Moscow region.