This has been covered here before, more than once >> https://voat.co/v/politics/1939407

Here is the story of how Heinrich Mueller's death was faked by the OSS

Interview in 1948 of Heinrich Mueller

' Gregory Douglas, author of the controversial book Gestapo Chief: The 1948 Interrogation of Heinrich Müller, was interviewed at Spotlight headquarters in Washington. Müller, chief of the Gestapo, was officially listed as killed during the final days of World War II, but Douglas says Müller made a deal with the United States, was brought to this country and lived here until his death several years ago. Through conversations with Müller and records supplied by the former Gestapo chief, Gregory has assembled a remarkable history that flies in the face of much surviving wartime propaganda. '