Police investigating the brutal murder of a mum 30 years ago have released a suspect arrested for the crime.

Carol Clark, 32, of Bristol, was found dumped in reeds and undergrowth with a broken neck on the side of Gloucester and Sharpness Canal in March 1993. There was fresh hope the cold case could soon be finally solved when Gloucestershire Constabulary arrested a 64-year-old man as part of its investigation in March last year.