Except if you read up on this guy, his Waffen SS unit was implicated in multiple war crimes against Poles and Jews.
This is his Wikipedia page, the Simon Wiesenthal Center describes his unit’s actions are particularly interesting.
If you don’t believe Wikipedia, plenty of other sources are reporting the same thing.
Some of those victims have claimed that he oversaw the torture of slave laborers who did not live up this expectations.
But instead of worrying about what some guy did 80 years ago in an effort to get rid of invading Russians, why not spend time trying to identify the Russians who are killing and torturing civilians in Ukraine now?