In 1984, at the age of 78, world-renowned rose grower Hilda Murrell was found brutally murdered in the Shropshire countryside. She had just gained approval to testify on the unsolved problems of radioactive waste at the first British planning inquiry into a new nuclear power plant at Sizewell, Suffolk. The police theory that a lone, panicking burglar robbed and abducted Hilda in her own car for petty cash erupted into a sensational political conspiracy involving prime Minister Margaret Thatcher's plans for British nuclear energy and the controversial sinking of the Argentine cruiser General Belgrano in the 1982 Falklands War. The West Mercia police took until 2005 to secure the conviction of Andrew George as Hilda's unlikely murderer—in 1984 he was a 16-year-old truant from a local foster home who could not drive. The case spawned numerous books, plays and TV programmes as it became one of the most baffling British murders of the 20th century. Now, Hilda's nephew Robert...