Dark Stories: On This Day In True Crime History - Dark Stories True Crime Tours

1971: The Stanford Prison Experiment: When a Simulation Turned Brutal

In August 1971, Stanford University psychology professor Philip Zimbardo launched a two-week simulation of prison life using 24 male college students, randomly assigned as either guards or prisoners. Recruited through a newspaper advertisement, participants were paid $15 a day. Within days, the guards, given uniforms designed to strip individual identity, began psychologically abusing the prisoners with escalating cruelty.

The experiment collapsed on the sixth day after psychologist Christina Maslach visited the site and confronted Zimbardo over the conditions she witnessed. He shut it down, later admitting he had become too absorbed in his own role as superintendent. The study became a landmark case in research ethics, prompting American universities to strengthen institutional review processes for human experimentation. Later critics, including researcher Thibault Le Texier, argued the guards had been coached to behave aggressively, and that Zimbardo’s conclusions were largely written before the experiment began.

Prisoner hands gripping steel lattice close up

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Corruption Prison Scandal USA

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1907: Baby Farmer Rhoda Willis Hanged on Her Birthday at Cardiff Prison

Rhoda Willis, also known as Leslie James, was a baby farmer convicted of murdering the illegitimate infant of Maud Treasure. She had undertaken to adopt and raise the child for six pounds, but the infant was found suffocated, wrapped in a parcel, in her bed at a Cardiff lodging house. Willis was sentenced to death at Glamorgan Assizes and executed by hanging at Cardiff Prison on 14 August 1907, carried out by brothers Henry and Thomas Pierrepoint. She was the only woman hanged in Wales in the 20th century and the last baby farmer to be executed in Britain.

Born in Sunderland in 1867, Willis was 40 years old on the day of her death. She had received a first-class education, spoke several languages, and had lived in Cardiff for years following the death of her husband. The night before her execution, she confessed to her solicitor that she had wilfully killed the baby on the train. She met her fate, according to witnesses, calmly and without incident.

In a letter written shortly before her execution, Willis expressed deep remorse, wrote that she had never before appreciated the singing of the birds or the beauty of sunshine as much as in her final days, and expressed confidence that God would pardon her sins.

Mrs. Grundy, an icon of Victorian respectability-Victorian baby farming era

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Baby Farming Cardiff Execution Murder UK Wales

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1964: The Last Two Men Hanged in Britain, Executed Simultaneously 50 Kilometres Apart

At 8:00 a.m. on 13 August 1964, two gallows traps opened in unison across England. Peter Anthony Allen dropped at Walton Prison in Liverpool; Gwynne Owen Evans dropped at Strangeways Prison in Manchester. Both had been convicted of the capital murder of John Alan West, a 53-year-old laundry van driver from Workington, Cumbria, stabbed and beaten to death during a robbery at his home in the early hours of 7 April 1964.

Police traced the men within 48 hours through a medallion left at the scene, inscribed with Evans’ name. Tried together at Manchester Crown Court in June 1964, the jury found both equally guilty of capital murder committed in the course of theft. The judge, executioners Harry Allen and Robert Leslie Stewart, and the clock itself were all synchronised. When the traps fell, Britain’s era of capital punishment fell with them. No one has been executed in the United Kingdom since.

Silhouetted hangmans noose rope on orange backlit background

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Cumbria England Europe Execution Liverpool Manchester Murder Robbery Trial UK

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1915: Brides in the Bath Killer Hanged at Maidstone Prison

George Joseph Smith, operating under aliases including Henry Williams and John Lloyd, was convicted of drowning three women in their baths after marrying them bigamously and insuring their lives. His victims were Bessie Mundy, found dead at Herne Bay in 1912; Alice Burnham, drowned at Blackpool in December 1913; and Margaret Lofty, found dead in her bath at Highgate in December 1914. Each death was initially recorded as accidental, but Divisional Detective Inspector Neil and pathologist Dr Bernard Spilsbury determined that accidental drowning in any of those baths was effectively impossible.

Smith was tried in 1915, convicted of all three murders, and hanged at Maidstone Prison by executioner John Ellis on 13 August 1915.

Smith protested his innocence to the end.