John Ringo, the Gunfighter Who Never Was, as reported by his biographer, Jack Burrows, was written off as a suicide when he was found dead in the crotch formed by two oak trees along Turkey Creek in Cochise County, Arizona. Did the coroner's jury come up with a convenient finding that saved the County a lot of trouble. Did Wells Fargo pay someone to "off" Ringo. Very likely. Here is the evidence to sift and draw your own conclusions, much of it from the story of Wyatt's widow, who claimed Wyatt and a posse killed Ringo.
Used availability for G G Boyer's Who Killed John Ringo?
September 1997 : USA Paperback