Karl-Otto Koch

Karl Otto Koch, a colonel of German Schutzstaffeln (SS), was the first commandant of the Nazi concentration camp at Buchenwald (from 1937 to 1941), then he covered the same duty at Lublin (Majdanek camp),

According to The Buchenwald Report, one week before the American liberators arrived, Col. Koch was arrested and executed in August 1943 by the Nazis for inciting the murder of two prisoners, for embezzlement and black market activities in the camps.

His second wife was Ilse Koch, whom he married in 1936, better known as "the Witch of Buchenwald" ("Die Hexe von Buchenwald"), one of the cruellest figures of the whole Holocaust and the the most infamous person associated with Buchenwald. Sentenced to life imprisonment by a German tribunal after the war, she committed suicide in prison in 1967