¿Por qué el caminante no mata a Sam? Detalle clave para el final de Juego de Tronos

One of the puzzles of Game of Thrones is why the white walker does not kill Samwell Tarly in the tenth episode of the second season of Game of Thrones, called Valar Morghulis. Director Alan Taylor unveiled it in a video commenting on the episode:    • Video  . But not to kill Sam may contain one of the main clues about the ending of Game of Thrones. T-shirts with spoilers: http://www.latostadora.com/frikidoctor