I pretty much dread whenever the 20th season of Gunsmoke starts because Amanda Blake is no longer with the series. But, out of 635 episodes, "The Fourth Victim" is a top 10 favorite. We see Matt Dillon doing what detectives or law enforcement would have been doing--slogging through clues and information to try to stop a killer. The acknowledgment of Chester Goode and Quint Asper while going through old court documents is wonderful since those two characters--as well as Kitty and Thad Greenwood--just disappeared without a reason or a trace. The only character we heard get an instant nod was Sam the bartender and that was after Glenn Strange died during the 19th season. Anyway, "The Fourth Victim" has suspense, creepy music, a palpable sense of alarm throughout the episode and keeps you wondering until the end. Even when you've seen it over a dozen times, like I have, you find it's still enjoyable to watch and how to get any clues to the killings. I really do wish they had done more episodes with this style of forensic clue hunting and less of the fast draws that the show was famous for.