In Cold Blood by Truman Capote
You could assume that because it is based on a real-life case that has already been solved, it lacks the mystery of Truman Capote's In Cold Blood. Fortunately, that couldn't be further from the truth, since this nonfiction novel is one of the best-selling crime novels of all time.
Capote had been following the investigation of a triple murder in Kansas and had done some interviewing himself before the perpetrators were apprehended. As a result, his tale is full of unexpected twists and turns - surely such heinous behavior must be fiction?
Link to buy: www.amazon.com/dp/0679745580?tag=reedwebs-20
