Müller was born in
Sereď in the
Czechoslovak Republic. In April 1942, he was sent on one of the earliest
Holocaust transports to
Auschwitz II, where he was given
prisoner number 29236. Müller was assigned to the
Sonderkommando that worked on the construction of
crematoria and the installation of the
gas chambers. Once the crematoria were completed, Müller was assigned to a
Sonderkommando unit tasked with operating the killing facilities; his performing this role, he believed, was the only reason the Germans kept him alive. Müller's unit would meet new arrivals of men, women, and children at the undressing area just outside the gas chambers, in the basement of the crematoria. He testified he would tell the terrified new arrivals that they were somewhere safe. Once the SS had given the command, the naked victims would be herded into the gas chambers, where they were gassed with
hydrogen cyanide (
Zyklon B). After the victims had been murdered, Müller's unit was tasked with the removal of the bodies and grouping them by size and fatty tissue to facilitate their disposal in the crematoria. The victims' clothes were collected and disinfected, and all valuables were to be surrendered to the
SSsome of which the
Sonderkommando would pocket for bartering purposes. He describes the gassing and cremating of a previous Sonderkommando in December 1942. He stated that, in the summer of 1942, he was transferred from the
Sonderkommando of Crematorium One, where he spent six weeks, to Monowitz. The Monowitz Subcamp, from the main Auschwitz site, was a labor camp run by the German firm
IG Farben, and there were no crematoria there. For the remainder of his imprisonment at Auschwitz, Müller worked mainly at
Birkenau, where the main crematoria were located. He remained at Auschwitz until January 1945, when the camp was evacuated before the arrival of the
Red Army. After a
death march into Germany, he was liberated from the
Mauthausen subcamp of
Gunskirchen in May 1945.
Suicide attempt testimony Sonderkommando units were periodically murdered to eradicate witnesses, but Müller managed to survive in Auschwitz for over two years. Müller reports that he decided to end his life by joining a group of the first liquidation of the
Theresienstadt family camp inside the gas chambers. While awaiting his fate, he testified that a girl who recognized him came up to him, stating, Müller says he came to believe that he had a duty to stay alive so that he could join other survivors and become a living witness to the horrors of the Holocaust. This was called 'perhaps the most poignant story of any Holocaust testimony' by Yehuda Bauer a distinguished Holocaust Scholar. However Inga Clendinnen notes the narrative is not very believable. Clendinnen does not say Müller lied exactly, but that it is one case where the story "flowered" and grew out of smaller real events.
Testimony taken at Auschwitz Müller first testified during his hospital recovery. His statement was originally published in an obscure Czech collection, but it was reprinted in the 1966 book
The Death Factory, written by two other Holocaust survivors,
Erich Kulka and Ota Kraus. Müller testified at the second
Frankfurt Auschwitz trials in 1964. Müller sought out a "literary collaborator" in order to write a second version of his testimony. That work was published in 1979 with the title
Auschwitz Inferno: The Testimony of a Sonderkommando, or in the US
Eyewitness Auschwitz: three years in the Gas Chambers. Inga Clendinnen notes that it is not an "unblemished account", as one preface suggests, instead with "skillfull placing of uplifting episodes" that are "less well-authenticated" than the first person eyewitness testimony of the gas-chamber killings. Müller also testified in the 1985 film
Shoah by
Claude Lanzmann. ==Death==