Was Diana Murdered? The Most Outrageous Conspiracy Theories!

Dodi's dad, Mohamed al Fayed, reportedly believes the crash was orchestrated by the royal family, because they didn't want his son marrying a royal. One similar theory by a French investigative journalist claims that Diana was "almost certainly" nine to 10 weeks pregnant at the time of her death, which sparked a plot by the establishment to have her killed.

Adding to the drama, Diana's car been changed at the very last moment, and there was also no backup car present. A standard security precaution, the backup car had been in place during the day.

Driver Paul initially was blamed for the accident, and was even rumored to have been intoxicated at the time of the crash -- a crazy theory that was never proven. However, he was later discovered to have worked for both French and British intelligence. According to reports, large amounts of money were deposited into his account in the months leading up to Diana's death, leading many to believe there was a cover up.

Paint markings and shattered taillight glass that matched a White Fiat Uno were recovered at the entrance of the tunnel. The only problem? The car seemed to have vanished into thin air.

Theories began emerging regarding ex-MI6 agent James Andanson, who committed suicide several years following Diana’s death. Andanson owned a white Fiat Uno. But officials denied the car's involvement, claiming it was too old and run-down to have been involved in the high-speed crash.

Retired lawyer and one of the first witness of the crash, Stanlee Culbreath, says "other forces" were behind the crash.

“I always thought it was suspicious, that other forces played a hand, but now, 20 years on, I question more than ever whether it was a genuine accident. I just think it is dubious. If that’s the Princess, why did it take 20 minutes or so to get to her and, when she was finally released from the car, why did they pass one hospital and take her to another?”

In 2007, it was revealed that it took one hour and six minutes from the time Diana was taken from the crash to reach a hospital. Medical experts say if she had been removed faster, she might have survived.

The tunnel reopened within hours after crash, and some claim there was not a proper amount of time to complete an investigation. Investigators say that they had retrieved all that they needed from the scene.

Instead of taking the quickest route, her driver, Henri decided to take a longer route to avoid paparazzi. But some armchair detectives found it suspicious that all 17 CCTV cameras along the route were either not working or turned off. Therefore, no footage was captured that would have been crucial to determine the cause of the crash.