They Die But Once: The Story Of A Tejano""They Die But Once: The Story of a Tejano"" is a historical novel written by James B. O'Neil. The book tells the story of a Tejano family living in Texas during the turbulent times of the 19th century. The main character, Juan de Dios, is a young boy who witnesses the struggles of his family and his community as they try to survive in a changing world. The novel explores themes of identity, family, culture, and the struggle for survival in a world