On April 20, 1945, Skierka led a group of about 2,400 prisoners in the first column of prisoners evacuated from Flossenbürg. Skierka ordered the SS guards to shoot any prisoner who tried to escape or could not keep up to prevent them from ending up in the hands of the Allies.
Witnesses testified that Skierka machine-gunned perhaps as many as 350 prisoners.
He was brought before the U.S. Military Tribunal in Dachau in the trial of the Nazis responsible for Flossenbürg and sentenced to death by hanging. The sentence was carried out in Landsberg prison on October 3, 1947.
Source: “Bruno Skierka,” Wikipedia.