American 1880’s outlaw and historical serial killer, Billy the Kid (William Bonney) sat for a tintype with some of his cohorts. Billy (second from left) was soon after shot down by the man on the far right (Pat Garret) who later became a local lawman in New Mexico. Some forensic document skeptics respond in this article.

http://www.santafenewmexican.com/news/local_news/photo-found-of-billy-the-kid-lawman-garrett-who-killed/article_f48e1ac6-3218-5f17-85a5-30cbdafbe0f3.html