The guy was an SS sergeant,the SS members had to meet the political standards of the Nazi party.Plus,each and every one of them read Mein Kamph from cover to cover-they knew why they were there and what was expected of them.
Yes, yes, in a totalitarian system, everyone is guilty by association because of the actions of a few in charge.
What nonsense.
Unless they can tie this guy to actually killing, or being in a position to order it, this is about revenge not justice.