To the casual observer, they must have seemed like all the other families dining in the elegant riverside restaurant in Zurich that night. Laughing and joking, a strikingly attractive woman was evidently revelling in the company of her sister, mother and father as they ate risotto and shared a bottle of wine. Throughout that cool, clear August evening in 2006, the family enjoyed animated conversation before sharing a late-night gin and tonic. So far so ordinary, except for one extraordinary detail: they all knew this would be their last meal together. Poignant farewell: John Huff, his wife Barbara...