TV 90s

In "Twin Peaks", what was the killer spelling by leaving letters under his victims' fingernails?

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Who guest starred on TV's "ER" as Madame X, the Alzheimer's stricken singer?
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On "NYPD Blue", who was the actress that played Detective John Kelly's former wife?
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Who was Billy's roommate on "Melrose Place"?
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Yakko, Wakko, and Dot escape lockdown in which Warner Bros. cartoon?
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On "Red Dwarf", what was Kochanski's middle initial?
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Which "ER" actor produced the TV movie "Border Line?
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Who succeeded Kai Opaka as the religious leader of Bajor in "Star Trek: Deep Space Nine"?
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Where would one find the filming locations of "Dawson's Creek"?
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