@cowanon @Sulla_Felix @s2208 @oneBasedBrother Okay, I wondered this very thing, too; and a coworker answered, without any reason to doubt his sincerity.
I shit you not; he says (straight-faced) it’s because they were “occult sacrifices” whom the SS were required to keep exacting details, in order to appease whatever “deity” they were worshiping.