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Prime Video Unveils 'The Crossbow Cannibal' Documentary on Notorious Triple Murderer

Featuring testimony from the killer’s sister alongside survivor recollections, law enforcement reflections, forensic analysis, the film revisits one of Britain’s most macabre cases.

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Overview

  • Prime Video released the 90-minute documentary 'The Crossbow Cannibal' on July 12, revisiting Stephen Griffiths’s 2010 murders of three Bradford sex workers.
  • Caroline Griffiths appears on camera for the first time to describe youthful acts of theft, cruelty and a points-based system she says foreshadowed her brother’s violent path.
  • Survivor Kathy Hancock recounts an attempted poisoning and prolonged physical and mental abuse before escaping Griffiths’s captivity.
  • Former firearms officers detail the unsettling discovery of human remains in Griffiths’s flat and his brazen confession upon arrest.
  • Griffiths remains at HMP Full Sutton under a whole-life order and sustained an assault by a fellow inmate in November 2024, highlighting tensions behind bars.