Josef Mengele graduated with a medical degree from the University of Munich and, from 1931, served in units close to the Nazi party. He was a disciple of Dr. Ernst Rüdin, one of the main supporters of the idea that worthless lives should be eradicated. Rüdin was also one of the architects of the law of obligatory sterilization promulgated by Hitler in 1933 for people with deformities, mental disabilities, depression, or alcoholism. Mengele had managed to arrange to have himself assigned to Auschwitz, where he had a human warehouse at his disposal for his genetic experiments.