Where were you when Diana died? For Trevor Rees-Jones the answer is simple: he was in the same hospital as Diana, fighting for his own life a few rooms away. As bodyguard to her companion Dodi Fayed, he was with the couple when, hounded by paparazzi and with a driver who turned out to be drunk, their Mercedes crashed into the thirteenth pillar of the tunnel under the Place de l'Alma in Paris. Dodi and the driver, Henri Paul, died instantaneously,...