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Watch S8, EP17: Colin Whelan with Fubo for $0 Today

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When Mary Gough is found dead in her family home, her husband Colin Whelan appears shocked.

When Mary Gough is found dead in her family home, her husband Colin Whelan appears shocked.

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World's Most Evil Killers

S7, EP10 "Zahid Zaman"

On the surface, Zahid Zaman portrayed himself as a pillar of the community, but the true story of this cult killer was deeply sinister.

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S8, EP6 "Richard Kuklinski"

Richard Kuklinski claims to have murdered over 100 people for New York and New Jersey's crime families.

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S5, EP12 "Victor Ferrant"

Victor Farrant is a convicted rapist who murdered his former girlfriend in 1996.

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S5, EP16 "Keith Jesperson"

Keith Jesperson, known as the Smiley Face Killer, brutally killed at least eight women across five American states in the early 1990s.

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S9, EP17 "Emanuel Webb"

A decade-old link revealed a serial killer who kept the same M.O. after moving far away.

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S9, EP12 "William Devin Howell"

Gardener William Howell used his van as a "murder mobile," killing women and dumping bodies.

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S9, EP3 "Robert Howard"

Robert Howard manipulated and preyed on vulnerable women across countries.

An in-depth look at some of the world's most dangerous murderers.
Starring: Andy Gatenby, Christopher Kouros, Elizabeth Yardley, Gareth Lawrence, Geoffrey Osborne, Geoffrey Wansell, Harold Schechter, Helen Morrison, Matthew James Morrison, Nicholas Benjamin, Roberto Vivancos, Ross Huguet, Stuart Hamilton, Tom Bonington, Yanick Ghanty
Original Air Date: Aug 10, 2017
Genres: DocuseriesTV Series
Rating: MA 15+
Playback: HD
9 seasons available on demand
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