User blog comment:Fliu/Chapter 957: More Info on Rocks/@comment-24684875-20190927062706/@comment-108.83.222.210-20190927160213

Hearing about both of them was quite the treat. It has been questionable to people regarding whether or not Shiki should be considered canon or not from what I have seen. Now we know that he certainly exists in the mainstream One Piece world. As for John, isn't he that zombie we saw on thriller bark? The one whose treasure Buggy seems to be seeking? I want to know more about these two individuals as well, but I also want to know about their captain. I think that will help to clear up whether or not there are any connections between Xebec and Blackbeard.