Was Princess Diana's Death a Mystery or an Accident?

Many questions are unanswered on Princess Diana's Death!

Princess Diana's Death was shocking, she died in a car crash on Aug 31, 1997

It's been 25 years, and no one is sure whether it was an accident, or whether it was planned?

In the Accdient, Diana's Boyfriend, and the driver also died

During Investigation, there were many facts which came out

The car speed limit was 30 mph, but when the car rammed on pillar the speed limit was 60 mph

The Driver's alcohol level was 3 times above the country's legal limit

There were also reports that Diana was pregnant with her Boyfriend's child

There were also talks that the Royal Family didn't approved Diana's and Boyfriend Dodi's relationship

Diana also stated that she was unhappy with her relationship with Prince Charles

The mystery is still not cleared, whether it was planned, or was it an accident