By Ann Cusack The mother of a young mum whose ex-partner brutally murdered her before dumping her body in a layby is demanding more be done to protect victims of domestic abuse. Carpet-fitter Darren Hall, 36, murdered Sarah Henshaw, 31, at her home before dumping her body miles away in an isolated layby. He was also seen disposing of her belongings including her dressing gown and her slippers in a skip. Sarah’s devastated mother, Lorraine, 51, has spoken for the first time of her loss, revealing Sarah had tried several times to end the relationship, but could not escape Hall completely. Mum of…