Question: Hanns Alexander, was a German Jewish refugee who tracked down and arrested the Kommandant of Auschwitz Rudolf Höss, was a Nazi German "SS"-"Obersturmbannführer" (lieutenant colonel) and the longest-serving commandant of Auschwitz concentration and extermination camp, in which event?
Sentence (from "Rudolf Höss"): On the initiative of one of his subordinates, SS-"Hauptsturmführer" (captain) Karl Fritzsch, Höss introduced pesticide Zyklon B containing hydrogen cyanide to the killing process, thereby allowing SS soldiers at Auschwitz to murder 2,000 people every hour.
Relevant evidence: No