Another speculation is that the word may have been inspired by the 1960 hit song "Gonzo" by New Orleans rhythm and blues pianist James Booker. This possibility is supported by a 2007 oral biography of Thompson, which states that the term is taken from a song by Booker but does not explain why Thompson or Cardoso would have chosen the term to describe Thompson's journalism. The 2013 documentary "" quotes Thompson's literary executor as saying that the song was the origin of the term. According to a Greg Johnson biographical note on Booker, the song title "Gonzo" comes from a character in a movie called "The Pusher", which in turn may have been inspired by a 1956 Evan Hunter novel of the same title.