Bruno Tesch

Bruno Emil Tesch was a German chemist, entrepreneur, and war criminal. Together with Gerhard Peters and Walter Heerdt, he invented the insecticide Zyklon B. He was the owner of Tesch & Stabenow, a pest control company he co-founded in 1924 with Paul Stabenow in Hamburg, Germany. During the Holocaust, Tesch sold vast quantities of Zyklon B, utilising his pesticide as a way to commit genocide. Over 1.1 million people were murdered by the Nazis using Zyklon B. A former employee of Tesch later said he was motivated not by ideology, but financial gain.