29 SEP 2026 · Between 1975 and 1980, Peter Sutcliffe — a Bradford truck driver from Bingley — murdered thirteen women across Northern England. West Yorkshire Police interviewed him nine times and let him walk out the door every single time. This is the story of how that happened.
The failures were not a matter of bad luck. They were structural, moral, and institutional. Senior officers drew a line between victims they considered respectable and those they did not, building an investigation around a partial picture of the killer's pattern. Survivors like Marcella Claxton gave accurate descriptions that were set aside because they didn't fit the official victim profile. A five-pound note was traced to Sutcliffe's workplace and filed. His vehicle registration appeared in records linked to multiple murder scenes. None of it connected, because the card-based index at the heart of the investigation couldn't surface what a modern database would find in seconds.
Then came the hoax. In June 1979, a cassette tape arrived carrying a Wearside voice taunting the lead detective by name. George Oldfield staked his investigation on it. Officers were redirected toward men with Sunderland connections. Sutcliffe, who spoke with a West Yorkshire accent, was quietly deprioritised. The tape was a prank. Its sender, John Humble, wasn't identified until 2005.
This first chapter of the series lays out the architecture of failure — the decisions made early that compounded across five years, two and a half million police hours, and thirteen lives lost. The Byford Report would later document what went wrong. This episode begins at the beginning: Wilma McCann, a playing field in Leeds, and the thirtieth of October, 1975. This episode includes AI-generated content.