Hans Kammler

Hans Kammler (26 August 1901 – after October 1945 However, as late as 2 November 1945 it was claimed he was being held in US custody. }}) was an SS-''Obergruppenführer'' responsible for Nazi civil engineering projects and its top secret V-weapons program. He oversaw the construction of various Nazi concentration camps, including Auschwitz, before being put in charge of the V-2 rocket and Emergency Fighter Programs towards the end of World War II. Kammler disappeared in May 1945 during the final days of the war, although conjecture about his capture or death remains. Provided by Wikipedia