Agneta Westlund lived in Loftahammar, a small harbour town on the south east coast of Sweden, with only a few hundred inhabitants. Agneta, 63, and her husband, Ingemar, 68, who had two grown-up children together, enjoyed taking their little black dog for walks in the forest just behind their house.
One afternoon in September 2008, Agneta did just that while Ingemar stayed at home. When she hadn't returned for hours, he went to look for her and came across a terrible sight. Lying on the forest floor, near the lake, was Agneta's battered and bloodied body. She had clearly suffered a brutal attack. Ingemar alerted the police, but instead of swooping into action and searching for a suspect, they arrested Ingemar for the murder of his wife. Despite his protestations,…