The guy he was supposed to have killed was called Thorvald or Konig (both names exist in the Russian records) but from what I've read there's no evidence in German records of this person. That isn't to say Zaysev didn't have a 3 day battle with a top sniper but there is no evidence to say this person existed either, if they had the dog tags then surely they would be able to confirm this. German military records were generally very thorough. I find the story hard to believe because of the Russians propoganda, they are masters of fiction when it comes down to stories of the war.
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