Diana's Death: Looking Back

Diana, Princess of Wales, and companion Dodi Fayed, walk on a pontoon in the French Riviera resort of St. Tropez in this Aug. 22, 1997, the photo taken days before the car crash that would kill them both.

Police services in Paris prepare to take away the car in which Princess Diana, Dodi Fayed and their chauffer were killed in this Aug. 31, 1997, file photo.

London's Daily Mirror claimed that months before Diana's death she wrote a letter to former royal butler Paul Burrell, shown here, in which she said she believed that Prince Charles was plotting to kill her by staging a fatal car accident. On Jan. 6, 2004, the British royal coroner launched a long-awaited probe into the car crash that killed her and Dodi Fayed on Aug. 31, 1997.

Mohamed al Fayed, father of Princess Diana's partner Dodi, was on hand in London on Jan. 6, 2004, for the first formal British inquest into the 1997 deaths of the princess and his son.

Coroner Michael Burgess poses for photographers in London prior to the start of the first formal British inquest into the 1997 deaths of Princess Diana and Dodi Fayed on Tuesday, Jan. 6, 2004.

Lady Sarah McCorquodale, Diana's sister, arrives at the Queen Elizabeth II Hall in central London on Jan. 6, 2004, to attend the first formal British inquest into the 1997 deaths of Princess Diana and Dodi Fayed.

Metropolitan Police Commissioner Sir John Stevens is seen in this file photo on Aug. 14, 2003. Royal coroner Michael Burgess said that he had asked the commissioner to investigate whether conspiracy theories should be part of the investigation into the deaths of Princess Diana and Dodi Fayed.

Princes William and Harry were only 15 and 12, respectively, when their mother, Princess Diana, was killed in a car crash in Paris on Aug. 31, 1997.

Floral tributes surround London's Kensington Palace, the official residence of Diana, Princess of Whales, and her partner Dodi on Tuesday, Sept. 2, 1997. The two died in a car crash in Paris just days earlier on Aug. 31.

This collection of file photos shows Dodi Fayed and Diana, Princess of Whales. The two, along with their chauffer, died in a car crash in Paris on Aug. 31, 1997. Recently, an Italian magazine came under fire for publishing the last photo taken of Diana before her death, showing a paramedic trying to put an oxygen mask on her.