French police investigate the death of Princess Diana, gathering evidence around the car crash. The world's press and internet users scrutinize their every move and speculate whether it was an accident or something more sinister.

Evidence from a British spy plus one elusive witness and the suspicious death of another witness demand the attention of more French police officers. Whatever the French verdict, polls show most of the British public believes Diana's death was a murder.

The British Police investigate allegations that Princess Diana's death was murder. New witnesses include Prince Charles and Princess Diana's butler, who talks of her fears for her life. The world watches to see if justice will be done.

Allegations that Princess Diana's death was a murder lead the British police to execute an unprecedented investigation into the British Secret Services. The jury gives their verdict on how Princess Diana died, and those involved reflect on its impact.