SEASON FINALE: Last week’s episode, with its extended conversations between Linden (Mireille Enos) and death row inmate Seward (Peter Sarsgaard) and its almost unbearably intense climax, got us fully involved in The Killing again. Now comes the two-hour season finale – with at least one more killing for Linden and Holder (Joel Kinnamon, pictured with Enos) to confront, and solve, before this season’s story line concludes. Presuming, that is, it does conclude…