The Chief of the Institute of Hygiene was, SS-Colonel Joachim Mrugowsky was in charge of among other things distributing Zyklon-B gas used at Auschwitz. Auschwitz also hosted "experiments" like injecting healthy people with lethal tubercular cultures, and executing Russian prisoners using poisoned bullets (1 ).
According to Hoess all purchases of 'Zyklon B' where made through Dr. Mugrowski of the SS Health Institute. Dr. Joachim Mrugowsky hired Kurt Gerstein to produced the bills for 'Zyklon B' that were evidence at Nuremberg. The Nazi always bought from two companies Frankfort chemical combine, and I.G. Farben (2).
Kurt Gerstein took notes and made detailed maps of the camps. He tried to expose this to the Bishop of Berlin he was thrown out of the Bishops palace (3 ).
A 34 year old Kurt Gerstein was found living at the Hotel Rothweil in the Black Forest. Gerstein handed his American captors (American intelligence team ) a seven page statement and bills for gas that were to appear at Nuremberg(4 ).
A former Sturmbannfuhrer in the Security Service, Wilhelm Hottl, had a conversation Adolf Eichmann in Budapest at the end of August 1944. He said, Eichmann said six million Jews had died 4 million in camps and two million in other ways (5 ).
The prosecution at Nuremberg got the estimate of 6 million Jewish deaths from a affidavit from Dr. Wilhelm Hottl who worked at Reich Central Security Office (6 ).
SS Doctor Hans Munch who serve at Auschwitz in 1944. He said in a 1995 statement, "I further attest that I saw thousands of people gassed here at Auschwitz. Children, old people, the sick and those unable to work were sent to the gas chambers. These were innocent human beings: Jews, Gypsies, homosexuals, Hitler's political opponents - anyone who did not fit Hitler's idea of a pure Aryan race." (7 ).
Looking back on his Auschwitz experience after fifty-three years, SS Dr. Hans Munch said " You have to realize that murdering people became as natural as carrying out the routine jobs you have to do every day. You got used to everyday life in Auschwitz." (8 ).