Josef Klehr

Josef Klehr (17 October 1904, Langenau, Upper Silesia – 23 August 1988, Leiferde) was an SS-"Oberscharführer" (master sergeant), supervisor in several Nazi concentration camps and head of the SS disinfection commando at Auschwitz concentration camp.
Life.
Klehr was born as the son of a teacher. After attending the Volksschule in Wohlau until 1918 he got an apprenticeship with a cabinet maker, passing the exam in 1921 that allowed him to do it by trade. As of 1934 he worked as a night porter in a community home, then subsequently as a nurse in a sanatorium. From 1938 he was assistant sergeant at Wohlau prison.
Klehr was a member of the Nazi Party and Allgemeine SS as of 1932. He participated in military exercises with the Wehrmacht and received training to become a medic. Shortly before the beginning of the war he was drafted into the Waffen-SS. In August 1939 he was transferred to Buchenwald concentration camp as a guard, then to Dachau concentration camp as a medical orderly a year later. In January 1941 he was promoted to SS-Unterscharführer and transferred to Auschwitz, working as a medical orderly in the prisoners' infirmary.
Klehr was renowned for killing by phenol injections into the heart, something he essentially took over as of some time in 1942. He devised ways to optimise the speed of the killing process, such as experimenting with the positioning of prisoners before their injection.
Klehr occasionally conducted selections himself, and when he was informed that the camp doctor was unavailable, stated immediately, "Today I am the camp doctor." Due to various descriptions of him standing against a background of corpses "wearing either a white coat or "a pink-rubber apron and rubber gloves" and "holding a 20-cc hypodermic with a long needle" in his hands, Klehr has been described as the "ultimate caricature of the omnipotent Auschwitz doctor." He was famed for his sadistic cruelty.
As told by Witold Pilecki, who had first hand knowledge of Klehr's operations in Auschwitz "They were not exclusively those seriously ill or exhausted. Some were here only because Klehr did not like them and put them down in the "needle list", there was no way out. The butchers were also different than in the beginning of the camp; nevertheless I do not know if they may be called degenerates. Klehr used to murder with his needle with great zeal, mad eyes and sadistic smile, he put a stroke on the wall after the killing of each victim. In my times, he brought the list of those killed by him up to the number fourteen thousand and he boasted every day with great delight, like a hunter who told of the trophies of the chase." 
In 1943 Klehr became head of the disinfection squad ("Desinfektionskommando"). As a handler of Zyklon B his tasks included not only delousing living quarters and clothes, but direct involvement in the mass gassing of prisoners. He was one of those responsible for inserting the gas. He was present during selections where those incapable of working were sent to the gas chambers, and drew up a schedule as to who under him was to insert the Zyklon B.
On 20 April 1943 Klehr was awarded the War Merit Cross second class with swords. He was transferred to the Gleiwitz subcamp in 1944 where he was head of the prisoners' hospital and was medically responsible for Glewitz camps I to IV.
After the war.
Upon the evacuation of Auschwitz, Klehr guarded prisoners being transported to Gross-Rosen concentration camp, after which he was taken under command by an SS combat unit. In the beginning of May 1945 he was taken prisoner in Austria by Americans and was held until 1948. He returned to his family in Braunschweig and resumed work as a cabinet maker. In April 1960 the Frankfurt prosecutor's office issued an arrest warrant which was executed in September after Klehr's whereabouts was determined.
On 19 August 1965, the court convicted him of murder in at least 475 cases, assistance in the joint murder of at least 2730 cases, and sentenced him to life imprisonment with an additional 15 years. The witness Glowacki testified in court that Klehr killed the women who survived the massacre after the alleged uprising at the Budy female subcamp by phenol injection.
While in prison, Klehr was interviewed by journalist and film-maker Ebbo Demant. When Demant brings up Holocaust denial, Klehr said:
On 25 January 1988, Klehr's sentence was suspended due to unfitness for custody ("Vollzugsuntauglichkeit"). On 10 June, he was ordered to serve the remainder on probation. After seven months of freedom, he died at age 83.