Mental assessment for mum killer

A former soldier who knifed his mother to death when his mind was ‘black with anger’ has been sent to a psychiatric hospital for assessment. Criston Preddie, 28, called police to say he had killed his mum, Arlene Williams, 46, at her home in Tennyson Close, Enfield, on 28 September last year. Preddie attacked his mother with a kitchen knife as she sat on the sofa after downing three quarters of a bottle of vodka and losing his temper. Ms…