'Only Murders in the Building' Season 4 finale: Wait, what about those loose ends from Season 1?

Only Murders in the Building's Season 4 finale may have answered a lot of our burning questions — like who killed Sazz Pataki (Jane Lynch) and why — but it left us with several others. Chiefest among them: What was with all the links to the loose ends from Season 1?

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At the end of Season 4, episode 7, "Valley of the Dolls," actors Eugene Levy...