Ever since the death of Princess Diana and Dodi Al Fayed, Mohamed Al Fayed (Dodi’s father) openly accused the British establishment of ordering their assassination and covering it up afterwards. 
In September 2011, the UK Police received a letter from the former mother in law of an undisclosed SAS sniper, known only as Soldier N, who boasted to his wife that his unit “arranged Princess Diana’s death”.
According to the UK “Express” publication,
“Shortly before she died, Diana wrote a chilling letter to her former butler Paul Burrell saying she had entered ‘the most dangerous phase’ of her life. She spoke of a plot to tamper with the brakes of her car to cause a crash and ‘serious head injury’.”
The mother of Diana’s driver, Gisele, 83, said:
“We believe there was a plot to kill the Princess. We know in our hearts that our son was murdered and we still live in hope that one day the truth will be known.”
Tormented by fears of assassination, Diana also appeared to predict her own death during a confidential meeting with the late Lord Mishcon in 1995. He later wrote an aide-memoire of the conversation.
“Efforts would be made if not to get rid of her (be it by some accident in her car, such as a pre-prepared brake failure or whatever) at least to see she was so injured as to be declared unbalanced.”
The lawyer added: “She was convinced there was a conspiracy.” 
According to investigative writer Alan Power, the Princess was keeping a journal in which she wrote about the sexual affairs of the British Monarchy.
“The dossier she was compiling was powerful stuff. But it also directly endangered the monarchy. It contained what Charles liked in bed, women he had affairs with and what he got up to with Camilla. There are bits about a senior royal and a male servant.”
“The royal was allegedly accused of being discovered in bed with one of his servants.”
Mr. Power believes that this was the main reason why Diana was murdered. 
A biographer making a film about Diana’s life received death threats
Author Brian Watson claims that he received threats on his and his family’s life, after claiming Princess Diana’s fatal crash was caused by assassins.
Before making his theory public, he received a phone call threat:
“Drop the idea if you value your family’s life.”
After thorough research, he reached the conclusion that Diana’s Mercedes was steered into the 13th pillar (!) of a Paris tunnel, with the use of a remote control device.
He believes that the assassins followed Diana’s vehicle in a white Fiat Uno, which was seen by multiple witnesses, but never been found by authorities.
Mr. Watson now fears for his life and revealed, “I said to my co-writer: ‘Have I got too close to the truth?'”
His documentary will be entitled “Who Killed The Queen Of Hearts?”, and Mr. Watson already sent the script to film studios. 
By Alexander Light, HumansAreFree.com;