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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, EP11 "Anthony Allen Shore"

A Texas serial killer, Anthony Allen Shore was matched to four murders after his arrest for a different crime.

World's Most Evil Killers

S8, EP13 "Jordan Monaghan"

Jordan Monaghan kills his 24-day-old daughter Ruby on New Year's Day in January 2013.

World's Most Evil Killers

S7, EP16 "Heriberto Seda"

A killer who goaded police and media during his spree, Heriberto Seda claimed to kill based on his victims' star signs.

World's Most Evil Killers

S7, EP2 "John Cannan"

Experts look back on the crimes of John Cannan as he moved in and out of prison.

World's Most Evil Killers

S9, EP13 "Michael Ross"

Michael Bruce Ross, driven by sadistic urges, killed multiple young women in Connecticut.

World's Most Evil Killers

S9, EP6 "Hassan Al Shatanawi"

Laura Al Shatanawi disappeared, and detectives uncovered the tragic truth behind her husband Hassan.

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, Jane Monckton-Smith, Roberto Vivancos, Ross Huguet, Shabnam Chaudhri, 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
Available on

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