I believe also the Soviets forged some of the evidence against him. He was basically a captured Ukrainian Red Army soldier, who was given the choice to be a guard, or to be shot. I call that 'extenuating circumstances'. Plus, the trial was basically the Germans trying to say, "See, it wasn't just us!"
There’s more. Didn’t know the news was 2 weeks old. Read a tribute in Lew Rockwell.com. Thought provoking.