The grave is located on private land and is accessible through a gate with instructions on how to get to the grave site. Although the coroner ruled that Ringo 's death was a suicide , Wyatt Earp once claimed responsibility , and modern researchers have advanced several theories about who might have killed him , including Doc Holliday , Michael O'Rourke , and Buckskin Frank Leslie .
Johnny Ringo 's death was ruled as a suicide by the coroner .