After the war, Wiesenthal dedicated his life to tracking down and gathering information on fugitive Nazi war criminals so that they could be brought to trial. In 1947, he co-founded the Jewish Historical Documentation Centre in Linz, Austria, where he and others gathered information for future war crime trials and aided refugees in their search for lost relatives. He opened the Documentation Centre of the Association of Jewish Victims of the Nazi Regime in Vienna in 1961 and continued to try to locate missing Nazi war criminals. He played a small role in locating Adolf Eichmann, who was captured in Buenos Aires in 1960, and worked closely with the Austrian justice ministry to prepare a dossier on Franz Stangl, who was sentenced to life imprisonment in 1971.