Born in Breslau in 1906, the son of a famous German psychiatrist, Dietrich Bonhoeffer studied in Berlin and New York City. He left the safety of America to return to Germany and continue his public repudiation of the Nazis, which led to his arrest in 1943. Linked to the group of conspirators whose attempted assassination of Hitler failed, he was hanged in April 1945. A recent biography of him by Eric Metaxas, Bonhoeffer, was a U.S. bestseller.