After my research this is my conclusion.
After researching the so-called death of Hitler, it has led these three major conspiracy theories
1. Hitler committed suicide by poising himself
2. Hitler escaped to Antarctica to live out the rest of his life
3. Hitler went underground and escaped to Berlin
In 2018 in a new study, French scientists analyzed fragments of Adolf Hitler’s teeth to prove that he died in 1945, after taking cyanide and shooting himself in the head putting all the conspiracies to an end (ABC News)