C486 Cases of Disappearance
If the murderer didn't peel off the victims' skin when they were frozen, then we really wouldn't have such a clue today!
At the same time, if the murderer wants to skin the deceased, he must pin the deceased to a chopping board. Or rather, when peeling the corpse, the other hand that didn't have a knife would also press down on the skin to prevent the corpse from rolling