YMMV / Monk S4E2 "Mr. Monk Goes Home Again"

• Complete Monster: Paul Gilstrap is a lab technician seeking to poison his wife. Knowing she enjoys Neptune Bars before bed, Gilstrap not only poisons one but, to make it look like she was randomly victimized by a serial killer, poisons multiple other candy bars and distributes them throughout a store to kill many other people. Caught at his workplace putting the poison back, Gilstrap tries to take the bars before seeing one man had eaten one and murdering him with a gun to deflect suspicion from the poison in the autopsy.
• Retroactive Recognition:
  • One of the trick-or-treaters in the group that Gilstrap targets is a young Mary Mouser before she became known for Samantha LaRusso in Cobra Kai.
  • Leo Howard of Kickin' It fame plays another of the trick-or-treaters in the group.

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