Eric Edgar Cooke, the 'Night Caller', terrorised Perth with random attacks and was the last man hanged in Western Australia.

Jurgen Bartsch, a German youth, killed four boys in the 1960s in a case that became central to debates about abuse, psychology and treatment.

Kristen Gilbert, a Massachusetts nurse, murdered patients by inducing cardiac emergencies, in a chilling case of medical betrayal.

John Duffy and David Mulcahy, the 'Railway Killers', terrorised London in the 1980s and helped pioneer offender profiling in Britain.

Futoshi Matsunaga orchestrated the Kitakyushu murders, one of Japan's most disturbing cases of psychological control, killing seven people.

Carlton Gary, the 'Stocking Strangler', was convicted of murdering elderly women in Columbus, Georgia, in the late 1970s, in a long-contested case.

Harvey Glatman, the 'Glamour Girl Slayer', lured women with fake modeling jobs in 1950s Los Angeles and became an early study for criminal profiling.

George Joseph Smith, the 'Brides in the Bath' murderer, drowned three wives for profit in a landmark case of early forensic science.

Marcelo Costa de Andrade, the 'Vampire of Niteroi', murdered 14 boys in Brazil in 1991, driven by disturbed religious delusions.

Cedric Maake, the 'Wemmer Pan Killer', was convicted of 27 murders committed around Johannesburg in the mid-1990s.

Adolfo Constanzo led a drug-trafficking cult in Mexico whose ritual killings, exposed in 1989, horrified two nations.

Ronald Dominique, the 'Bayou Strangler', murdered 23 men across southern Louisiana over nearly a decade before his arrest in 2006.

Joe Ball, a Texas saloon owner remembered as the 'Alligator Man', killed at least two women in the 1930s amid lurid legends that still surround his case.

Kate Webster, an Irish domestic servant, murdered her employer in Richmond in 1879 in one of Victorian London's most sensational cases.

Gesche Gottfried poisoned fifteen people in early 1800s Bremen, including her own family, and became the last person publicly executed in the city.

Dagmar Overbye, a Danish child-minder, killed a large number of infants in her care, and her 1920 case reshaped Denmark's childcare laws.

Trevor Hardy, the 'Beast of Manchester', murdered three teenage girls in the mid-1970s and became one of Britain's longest-serving prisoners.

Andras Pandy, a Belgian-Hungarian pastor, was convicted in 2002 of murdering members of his own family in a case that shocked Belgium.

Daisy de Melker, a South African nurse, poisoned two husbands and her own son for money in a case that gripped the nation in 1932.

Ahmad Suradji, an Indonesian cattle breeder and self-styled sorcerer, was convicted of killing dozens of women near Medan over more than a decade.