Board Thread:Arrow discussions/@comment-1783334-20170516181147/@comment-27700324-20170517151713

Stryzzar wrote: Yeah that scene with Oliver taking to Pike was pretty cheesy. However Pike didn't outright make any sign that he made the connection. The writers tend to assume the viewers need the characters to spell it out, so if they don't do that it's not official yet.

But even assuming Pike knew, that could be why Vigilante was gunning for Oliver Queen. Green Arrow was always a thorn in Vigilante's side, so now he knew his civilian identity and a means to target him.

But I'm mainly picking Pike because the list of candidates of "someone we've seen before", but also has combat training, are getting limited. Pike seems good.