Board Thread:Arrow discussions/@comment-9346948-20160121014804/@comment-5930677-20160123205328

Considering both Olvier and Felicity were too touched by that death. It's most likely Diggle. It could be Laurel or Thea, but that final scene makes us think that Diggle is the most probable option, because they're not hurt, they're devastated by that death. If it was my story, that's the character I'd probably kill right now, because it is an important character, but the story hasn't really been going around him lately.