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Smiley Face Killers Bonus: Possible Smiley Face Killer Graffiti recovered in Charles River Skatepark (Season 1, Episode 3)
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Smiley Face Killers Bonus: Possible Smiley Face Killer Graffiti recovered in Charles River Skatepark (Season 1, Episode 3)

Former Boston Policeman Joe Fisher, explains findings of three smiley faces and three victims located in the Charles River, to retired NYPD Sgt. Kevin Gannon and Criminologist, Dr. Lee Gilbertson.