Earp's reputation has been confused by inaccurate, conflicting, and false stories told about him by others, and by his own claims that cannot be corroborated. For example, in an interview with a reporter in Denver in 1896, he denied that he had killed Johnny Ringo. He then flipped his story, claiming he had killed Ringo. In 1888, he was interviewed by an agent of California historian Hubert H. Bancroft, and Earp claimed that he had killed "over a dozen stage robbers, murderers, and cattle thieves". In about 1918 he told Forrestine Hooker, who wrote an unpublished manuscript, and then Frank Lockwood, who wrote "Pioneer Days in Arizona" in 1932, that he was the one who killed Johnny Ringo as he left Arizona in 1882. However, Earp included details that do not match what is known about Ringo's death. Earp repeated that claim to at least three other people.