The 'Jigsaw Murders' Looked Unsolvable — Then Maggots and a Sunday Paper Pointed to a Trusted Doctor By Christina Coulter

When bundles of human remains surfaced in the misty Scottish hills in September 1935, detectives were handed a nightmare — a puzzle of flesh and bone. Each piece pointed to a killer who knew anatomy, but it would take the cutting edge of forensic science to reveal the truth — and expose a trusted doctor as a murderer.

According to records from the Moffat Museum and Glasgow Police Museum, two women walking along Gardenholm Linn Bridge near Moffat, Scotland, spotted what looked like a human arm in the water on the morning of Sept. 29, 1935.

Police soon recovered about 70 parcels from the ravine, many wrapped in cotton sheeting, clothing, and pages from a slip edition of the Sunday Graphic and Sunday News dated Sept. 15, 1935. That newspaper was distributed only in the Morecambe area, a clue that quickly focused the investigation on Lancashire.

Pathologists soon discovered that some remains were infested with bluebottle fly larvae. Forensic entomologists from Glasgow analyzed the development of the maggots to estimate how long the body parts had been exposed at the site.

Their analysis suggested the remains had been deposited between Sept. 16 and 18, providing a crucial window for when the murders and disposal occurred. Nearly three weeks would pass before the victims were identified.

Forensic experts, led by Professor John Glaister and anatomist James Couper Brash, used skull photo superimposition — matching photographs of the missing women to X-rays of the recovered skulls — a pioneering technique at the time.

The remains were confirmed to belong to Isabella “Belle” Ruxton and Mary Jane Rogerson, the housemaid in Dr. Buck Ruxton’s Lancaster home.

Inside Ruxton’s house, police found extensive bloodstains and evidence of a cleanup. The surgical precision of the dismemberment pointed to someone with medical training. Investigators also lifted a palm print from the bathroom door that matched Mary Rogerson.

Prosecutors later alleged that Ruxton killed Belle in a jealous rage, then murdered Mary when she encountered the aftermath. Both women had disappeared from Ruxton’s home just weeks before their remains were found.

Ruxton was arrested in October 1935. The trial at Manchester Assizes in March 1936 lasted 11 days and featured extensive scientific testimony, including entomology findings, skull superimpositions, and fingerprint analysis. The jury took just over an hour to return a guilty verdict.

Ruxton was sentenced to death and hanged at Strangeways Prison on May 12, 1936. While he maintained his innocence in court, a confession letter was published after his execution, according to the National Library of Medicine and the Lancaster Guardian.

Nearly a century later, the Ruxton investigation is still referenced in forensic science and criminal justice education materials, according to historical records and case summaries.