Board Thread:Arrow discussions/@comment-25029540-20151202190752/@comment-24852144-20160326170935

I highly doubt it's William (he's far away, no killing kids, etc.), or Samantha (as no one would care). I think the whole Felicity conspiracy theory with hallucinations seems a bit far-fetched. I haven't watched the scene recently, so I might have missed some clues, but my bet's on Diggle too. I doubt Oliver would be quite so devastated by Quentin or mama smoak.