Penny Bell

Penny Bell, a successful mother of two, left home at 9:40 am, telling the builders, who were renovating her home, that she was late for a 9:50 am appointment. She drove into the Gurnell Leisure Centre parking lot less than an hour later. The hazard lights were still flashing when Penny Bell's body was discovered around noon. She had been stabbed and slashed 50 times in the chest and arms with a long knife. Nine years, a £20,000 reward, 8,000 interviews, and 2,500 written statements later, nobody has been convicted of the 42-year-old businesswoman's murder.