Castle Spoiler: Will 3XK Return Before Season 4 Is Over? Andrew Marlowe Dishes!

The Triple Killer (3XK) is one of our fave recurring story lines on Castle (well, aside from Johanna Beckett’s cray cray murder).We were stoked when it was previously teased that the big bad guy might show up again this season, but now we’ve got some bad news. When TV Guide questioned Castle creator Andrew W. Marlowe if the killer will come around again this season, he couldn’t give a definitive answer!Although Marlowe says the producers are "in talks about whether we're...


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