I imagine that, faced with the fact that he didn't have long to live, he looked back at his life and decided, for whatever reason, that he wanted no part of it whatsoever. Maybe he just felt alienated from everyone, maybe he felt his life was wasted. So, he went out on his own terms. Clearly a smart man to cover his tracks so well. It's possible that he told anyone who might identify him to respect his dying wish to remain totally unidentified.
Wow, I would have never thought something this mysterious and interesting happened here in Sligo! Thanks for the upload, it was really interesting! We might use some of these editing styles for our vids!
He doesn't look Austrian at all rather Northern German, he moved around very upright almost stiff. Nodding as a greeting is also a very German thing. So he had only one kidney - the police should go through hospital records in Germany, someone will recognize him. Start in northern Germany!