"He always performed well among teachers and university professors. Many intellectuals were drawn into the higher echelons of the Nazi Party and participated in the more gruesome excesses of the SS. Thus, the four Einsatzgruppen or mobile killing battalions which were the spearhead of Hitler's 'final solution' in Eastern Europe contained an unusually high proportion of university graduates among the officers. Otto Ohlendorf, who commanded 'D' Battalion, for instance, had degrees from three universities and a doctorate in jurisprudence." Paul Johnson