As ‘Believe Me’, the series telling the story of ‘black cab rapist’ John Worboys, reaches its climax and he is denied parole for a second time, Katie Rossiensky speaks to the writer of the show, exploring the shameful way his victims, including Carrie Johnson, have been treated O n a summer evening in 2007, 19-year-old student Carrie Symonds was waiting for a night bus after going out with friends on the King’s Road in Chelsea. A black cab pulled up, and its driver offered to take her home to