There are a lot of legends surrounding bad man Dave Rudabaugh. First, there’s no evidence that he was called “Dirty Dave” during his lifetime—or that he had an aversion to bathing. It’s never been proven that he taught Doc Holliday how to shoot a gun in exchange for lessons in playing poker.
And there’s no proof that he was killed in Mexico in February 1886 after terrorizing the village of Parral. And that photo of a severed head that is purported to be Rudabaugh? There’s no evidence that it’s really him.