My dad was with Patton’s army at that point in the war. He was in the artillery, but I recall him mentioning members of the SS being killed if they were at the camps.
A story planted and enouraged by the Rookies.
It’s just as well that the Allies killed some of the guards because many of these scum returned to normal life after the war and lived without a care in the world. Simon Wiesenthal and the Mossad got some of those but not nearly all.