Bob Olinger - All's Well That Ends Well

Bob Olinger was and still is one of the most hated figures in all of old west history, the despicable villain in Billy The Kid's story. Olinger was a strange character, a crooked cop who rustled cattle in his free time, who dressed like he was doing Wild Bill cosplay and performed knife and gun tricks for anyone who would watch. Was Olinger really a "damned rascal", a "murderer from the cradle" like some said? Or was he unfairly slandered by later dime novel authors, like others said?