John Humble and the Hoax Ripper Tapes

When I lived in Leeds for a couple of years in the 70s, the Yorkshire Ripper was at work, and my abiding memory is of how the serial killings terrified so many people, and interfered with the lives of so many women who were afraid to walk some of the city's streets. It was a grim time, and there was real cause for celebration when, at long last, the police finally caught Peter Sutcliffe.

Arguably, his arrest was delayed by the hoax letters and tapes sent to the police and which set them off...