No. Well, I don't know, depends on circumstance.
If this is an execution, they wouldn't be line up so neatly. When you are shot standing up, especially you are not tied down (as they were not ties) you cannot control your fall when you died, because, well, you are dead already... So, your body would be positioned differently than other because the pose would have been random. As none of these soldiers can choose how they fall when they died.
Like this
See how the position of each body is different than the others?
And in this clip, 5 Russian body die head to toe in the same way, unless you really that lucky and they all felt the same way, or they were posed, but then you know it is not posted because the blood on the floor matches the wound. Which mean these body lies as it is. That's how it was deposited when they died.
So what kill these men? First of all, they all "Forced" into the same position would mean they were killed by a force traumatic enough to move the body of a few men which I guess weight about hundred kilogram each, that suggested explosion because bullet can't do that. Then you can see they are all lay in a circular direction with the same pattern of debris radiated along the floor, you would know it most likely an Artillery/mortar strike that kill these men.
Now if they were unarmed and hit by an artillery/mortar strike, and they are just shooting mortar round at them for fun, that could be a war crime, but it can also just be the soldiers had already cleaned up the scene and collected their weapon. So I don't know.