This is the show’s penultimate installment of the season. And sure enough, we’re at the point where both cops realize they’ve made terrible mistakes in judgment, and where we’re still supposed to be confused about the identity of the actual killer. That’s true, at least, regarding Ray Seward (Peter Sarsgaard), who’s in his last day of life on death row, still proclaiming his innocence, while Linden (Mireille Enos) just became less certain of it.