There's a piece of the Individual Immunity Necklace here! Almost as if it dropped off, from being moved to somewhere else? It seems Logan framed Fred, and Fred tried to get rid of the evidence even further, he didn't do a great job leaving a shard behind. It must be all of that Kolby's Survivor winners prize money getting to his head.
Maybe we should search through some people that've already been here? It seems Dono & Erik have been here in the past, but they're in the game! So I doubt it's them...