'The Blacklist' Creator on N-13 Mystery, Fall-Finale Murder That Will 'Redefine Everything'

(Warning: This post contains spoilers for Friday’s “The Blacklist.”) “The Blacklist” went to the darkest place its been thus far with tonight’s episode, aptly titled “Katarina Rostova: Conclusion,” as it featured the demise of Katarina Rostova (Laila Robins). The death of Elizabeth Keen’s (Megan Boone) mother came in the final moments of the episode at the hands of Raymond Reddington (James Spader). Red was worried Katarina knew too much about N-13 — whether or not that is ac...