The mum of a teen who was dismembered and dumped in a bin says "the monster won't reveal where my son's head is". Jean Hartley's son Christopher was just 17 when he was lured back to a flat on December 30, 1997, by Stuart Diamond, who strangled and then butchered him . She now wants to make sure he remains behind bars. Christopher's dismembered remains were recovered from a bin at the rear of a hotel, and Diamond was convicted of the murder and detained at Ashworth High Security Hospital in