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Smiley Face Killers: Brian Welzien's Mother Recounts the Day She Learned of Her Son's Death (Season 1, Episode 4)
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Smiley Face Killers: Brian Welzien's Mother Recounts the Day She Learned of Her Son's Death (Season 1, Episode 4)

Brian Welzien's mother talks to retired NYPD detectives investigating the Smiley Face murder theory.