That's not proof. I'm not convinced that's not just a picture of James Spader. The fact that I don't subscribe to fabricated nonsense floated by conspiracy theorists in YouTube videos doesn't make me close-minded. It does, however, make me not a bonehead. That's because the historical evidence that Hitler killed himself is overwhelming.
At the Hague, at the Nuremburg trials, they didn't just take a bunch of Nazis' word for it. They grilled all the witnesses and had the best minds of the best intelligence agencies on Earth grilling them and trying to poke holes in their stories, people whose expertise is determining when people are lying. When people give an account of something they didn't actually see, a made up story, it becomes apparent under interrogation because when it's a story they've been told, they end up repeating the same sets of words that were used when the story was told to them, end up telling the story from a singular perspective instead of from varying perspectives looking at a scene from different directions, end up getting tripped up in their lie because they're grilled on what happened before and after the events they say they witnessed, parts of the story that are outside the narrative of the concocted lie and that they have to makeup themselves to account to how they got to and from the point the lie starts, end up doing a lot of things that inevitably make their stories fall apart when they are grilled for weeks and weeks and made to recount the events over and over and over and then grilled about every single inconsistency.
Moreover, Israel, which was convinced Hitler was dead, nevertheless continued to investigate as if Hitler wasn't dead because they would be remiss not to and so grilled Nazi war criminals it relentlessly hunted for the next 40 years and, before summarily executing them, questioned them extensively, even under torture, regarding the possibility. Never once did Israel uncover any credible evidence of Hitler having survived the war.
The investigations immediately after the war and then the continuing investigations that went on for decades after the war just to be sure, and not just by Israel but all of the intelligence agencies in the West, proves with overwhelming evidence that Hitler died by his own hand at the end of World War II. Some crackpot theories made by crackpot theorists who have no real evidence do not stand up to the mountains of evidence to the contrary.
I can know he didn't die in 1945 the same way I can know you're an idiot--the preponderance of the evidence before me.