A depraved killer who dismembered a woman's body has shared a sickening reason for his despicable crimes. Steve Sansom , 45, and his partner Gemma Watts , 49, were today sentenced for the brutal and sadistic murder of "beautiful" and "sweet" Sarah Mayhew , whose remains they dismembered and scattered around a London park. Builder Sansom , of Sutton, south-west London, was handed down life imprisonment for murder with a whole life order, which means he will never be released from prison. The