Who Killed Hitler? is a 1947 American book edited by Herbert Moore and James W. Barrett, with an introduction by U.S. intelligence officer William F. Heimlich. The book contends that rather than commit suicide or escape Germany (as held by Western and Soviet sources, respectively), Nazi leader Adolf Hitler was assassinated in an attempted coup d'état by Schutzstaffel (SS) leader Heinrich Himmler. The book criticizes claims of Hitler's survival and has also been criticized for bolstering them.