Ex squadie killed his mum

A former soldier accused of stabbing his mother to death at her home may have been suffering from post-traumatic stress disorder, a court heard. Criston Preddie, 28, is charged with murdering Arlene Williams, 46, at her home in Tennyson Close, Enfield, on 28 September. Ms Williams has been repeatedly stabbed and she was pronounced dead despite the efforts of paramedics. Preddie spoke only to confirm his name when he appeared at the Old Bailey. Bernard Richmond, QC, defending, said: ‘Mr…