Author: Bill O'Reilly and Martin Dugard
As the true horrors of the Third Reich began to be exposed immediately after World War II, the Nazi war criminals who committed genocide went on the run. A few were swiftly caught, including the notorious SS leader, Heinrich Himmler. Others, however, evaded capture through a sophisticated Nazi organization designed to hide them. Among those war criminals were Josef Mengele, the “Angel of Death” who performed hideous medical experiments at Auschwitz; Martin Bormann, Hitler’s brutal personal secretary; Klaus Barbie, the cruel "Butcher of Lyon"; and perhaps the most awful Nazi of all: Adolf