Henry McCarty (November 23, 1859 – July 14, 1881) was better known as Billy the Kid, but also known by the aliases Henry Antrim and William Harrison Bonney. He was a 19th century American frontier outlaw and gunman who was a participant in the Lincoln County War. He was reputed to have killed 21 men, one for each year of his life. For more info: http://en.wikipedia.org/wiki/Billy_the_Kid