Georg may not have been a registered Party member, but probably served in an SS unit. Those guys tended to be “unreconstructed” throughout their lives.
I shudder to think that may have been true, but that icy stare would be what one would expect of such a person!
My wife’s other elderly cousin was such a dear man who was deeply ashamed about German war atrocities. He was a career violinist in the Hildesheim city orchestra and by his account spent most of the war assigned to assist a French family run their farm, practically as a farmhand in occupied France. His branch of the family was deeply indebted to their American cousins for saving his daughter by helping smuggle penicillin into Germany after the war to fight off an infection of some kind that she had. She went on to become a German federal judge.