What steps does montresor take to kill fortunato?

Montresor kills Fortunato by chaining him to a wall in a small room in the cellar of Montresor's home. Montresor then builds a brick wall across the entrance to the room sealing Fortunato in it for the rest of his now very short life. Although Fortunato was alive when we last heard from him, he is most certainly dead, because Montresor says that the wall has remained undisturbed for half a century.