There is an old proverb which says: "As a dog returns to its vomit, so a fool repeats his folly." Tammy Kingdon's folly was to return to Troy Mercanti on more than a dozen occasions during their tumultuous 16-year relationship. The final result was that she became, at least as far as the underworld is concerned, a dog - the derogatory term reserved for anyone who gives information to police. It was the prolonged brutality of Mr Mercanti's...
