Princess Diana was killed for planning to expose Brits involved in the land mine trade http://www.dailymail.co.uk/news/article-1282907/Princess-Diana-killed-planning-expose-senior-Brits-involved-land-trade.html

A leading British lawyer claimed Sunday Diana, Princess of Wales was killed because she planned to expose senior members of the British arms trade involved with land mines. Michael Mansfield, QC, who represented Mohamed al-Fayed in the inquest into the death of his son Dodi and the former royal, said: “A witness who knew her well claimed..Diana had a.. diary in which she was going to expose the people most closely involved in the British arms trade.”

Mansfield said: “I feel very strongly there was more to this case than a mere accident.” He went on: “The verdict of the jury .. came back to unlawful killing contributed to by paparazzi and following vehicles,” adding: “The interesting thing is most immediate vehicles were driven not by paparazzi but people they have never managed to trace.”