Sawyer realises that he had met Jack’s father when he was in Australia after Jack says “that why the Red Sox will never win the World Series”, the same thing that Christian had said when drinking with Sawyer in Australia.
When Sawyer goes out looking for his ‘stolen’ tarp, he hears more whispering. The whisper sounds something like “now go back around” and shortly there after he is chased by a boar. Were the whispers giving instructions? If so, who were they giving them to Sawyer or the boar? Then at the end of the episode after Sawyer shoots who he thinks is the “real” Sawyer, the dieing man says “it’ll come back around”.