Investigate true crimes from every angle with fan-favorite series like UNSOLVED MYSTERIES and FORENSIC FILES as well as FilmRise Originals like BLOODLINE DETECTIVES, MURDERED AT FIRST SIGHT and MEET, MARRY, MURDER.

World's Most Evil Killers

S5, EP5 "Lonnie David Franklin"

Lonnie David Franklin Jr. is better known by the nickname Grim Sleeper.

Britain's Most Evil Killers

S5, EP10 "Billy Dunlop"

A profile of the killer who, after killing 22-year-old Julie Hogg, became the first person to be convicted under revised UK double-jeopardy laws.

World's Most Evil Killers

S8, EP15 "Nicholas Burton"

In April 1997, 27-year-old Rachel McGrath is stabbed to death by an unknown attacker in a car park.

World's Most Evil Killers

S6, EP3 "Sean Vincent Gillis"

A serial killer brutally snatches away the lives of eight innocent women during a decade-long killing spree in Louisiana.

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.

Britain's Most Evil Killers

S5, EP3 "Kenneth Regan & William Horncy"

The shocking story of the two men who murder a millionaire and three generations of his family in a vicious, greed-fueled attack.

Britain's Most Evil Killers

S5, EP4 "Russell Bishop"

A look at the man convicted of sexually assaulting and murdering two nine-year-old girls in 1986.

Death Walker With Nick Groff

S2, EP6 "Nazareth Hospital"

Nick investigates Nazareth Hospital and tries to make physical contact with the many spirits said to haunt it.

World's Most Evil Killers

S8, EP6 "Richard Kuklinski"

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

Britain's Most Evil Killers

S5, EP9 "Ali Qazimaj"

A double murderer is found guilty of the brutal assassination of an elderly couple.

Killers: Caught on Camera

S2, EP10 "Jones and Keller"

In Texas, a husband fails to stop his wife from taking her own life with a gunshot to the back of her head; home surveillance reveals the truth; in Washington state, a man builds a bunker in secret with a diabolical plan for his wife and daughter.

Killers: Caught on Camera

S1, EP6 "Logan and Hannah"

Police investigate the disappearance of a 5-year-old boy; a young girl's body is discovered in a field.

Killers: Caught on Camera

S1, EP10 "Grace and Lucy"

A British woman is found dead after a date; a girl is killed to cover up an inappropriate relationship.

Britain's Most Evil Killers

S6, EP8 "Geoffrey Evans & John Shaw"

Geoffrey Evans and his accomplice John Shaw hit headlines in 1976 after the murders of two women in Ireland.

World's Most Evil Killers

S5, EP17 "Dayton Leyroy Rogers"

Dayton Leroy Rogers, known as 'The Molalla Forest Killer,' is a serial killer who mutilated and killed at least eight women in the US.

World's Most Evil Killers

S8, EP7 "Richard Biegenwald"

Over a 25-year career of murder, Richard Biegenwald kills at least six people.

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