r/UnresolvedMysteries; 3rd Richest Man in the World Disappeared in 1928
b'At the start of the 20th century, Alfred Loewenstein was firmly established as one the most powerful financiers in the world. On July 4th, 1928, Alfred boarded his private plane. He went to use the restroom mid flight, but never came back out. That was the last time anyone had ever seen him alive. We discuss theories of what may have happened.'