NOTE: This is a recap. If you are reading this, either you want to be spoiled or you have already seen the episode. Just a warning.
Over five seasons, “The Walking Dead” has inured us to inevitable death of major characters. Shane. Dale. Lori. T-Dog. Andrea. Merle. Herschel. The Governor. At Raleigh Studios in Senoia, there’s a room where photographs of the fallen are placed on the wall.