This question has been asked a few times in this sub. The short answer is no, no evidence suggests that Hitler ever killed anyone (unless he did so during WW1, when he was a soldier). I'll link you to the other threads because they answer the question pretty well.
For any future questions you should try searching them first.
For added clarity: it was Heinrich Himmler who actually ran the camps (and the SS...and the Gestapo...)