During the summer of 1943, Kaltenbrunner conducted his second inspection of the Mauthausen-Gusen concentration camp. While he was there, 15 prisoners were selected to demonstrate for Kaltenbrunner three methods of killing; by a gunshot to the neck, hanging, and gassing. After the killings were performed, Kaltenbrunner inspected the crematorium and later the quarry. In October 1943, he told Herbert Kappler, the head of German police and security services in Rome, that the "eradication of the Jews in Italy" was of "special interest" for "general security." Four days later, Kappler's SS and police units began rounding up and deporting Jews by train to Auschwitz concentration camp.