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Nurse Charles Cullen secretly killed patients for years while avoiding scrutiny.

Nurse Charles Cullen secretly killed patients for years while avoiding scrutiny.

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World's Most Evil Killers

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.

World's Most Evil Killers

S5, EP12 "Victor Ferrant"

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

World's Most Evil Killers

S7, EP3 "Lewis Daynes"

Exploring a case highlighting the many dangers of online grooming; on 17 February 2014, fourteen-year-old Breck Bednar was lured to a London flat before being killed by a fellow teenager.

World's Most Evil Killers

S7, EP1 "Stephen Unwin & William McFall"

After striking up a friendship in prison for previous murders, Stephen Unwin and William McFall's release had awful consequences.

World's Most Evil Killers

S9, EP20 "Charles Cullen"

Nurse Charles Cullen secretly killed patients for years while avoiding scrutiny.

World's Most Evil Killers

S9, EP19 "Joel Rifkin"

A traffic stop revealed a body, exposing Joel Rifkin's deadly spree against vulnerable women.

World's Most Evil Killers

S9, EP18 "Westley Allan Dodd"

Westley Allan Dodd's escalating predation ended after he murdered three young boys.

World's Most Evil Killers

S9, EP17 "Emanuel Webb"

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

An in-depth look at some of the world's most dangerous murderers.
Starring: Andy Dixon, Andy Gatenby, Christopher Kouros, Elizabeth Yardley, Gareth Lawrence, Geoffrey Osborne, Geoffrey Wansell, Harold Schechter, Helen Morrison, Jeff Longland, 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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