LONDON - Flashing lights, swarming paparazzi, a mysterious second car at the crash site, and a multi-tentacled conspiracy allegedly directed by the husband of Queen Elizabeth II jurors have much to sort through in reaching a judgment on the deaths of Princess Diana and her lover Dodi Fayed.Nearly 11 years after the tragedy that shook the world, testimony has ranged far and wide in an extraordinary coroner's inquest, without shedding much light on claims that they were victims of a plot. The coroner, Lord Justice Scott Baker, is expected to begin his summation Monday, which may take days before going to the jury.The key question for the jurors is whether the car crash in a Paris road tunnel on Aug. 31, 1997 was an accident.Mohamed Al Fayed has not budged from claiming that his son and the princess died at the hands of British security agents, acting at Prince Philip's behest.French police concluded it was an accident, caused in part by speeding and by the high alcohol level in driver Henri Paul's blood. A British police investigation concurred.More than 240 witnesses have testified since the inquest began on Oct. 2, including Diana's close friends and former butler, Philip's private secretary and a former head of the Secret Intelligence Service, MI6. Al Fayed's late bid to force the coroner to summon Philip to testify, and for written questions to be put to the queen, was summarily rejected by a higher court.There has been evidence that Diana feared dying in a car crash, but that she also had speculated about death in a helicopter or airplane crash; there was testimony that she feared Philip.The basic scene is familiar: the couple's car slammed into a concrete pillar in the Alma tunnel, after apparently having a glancing collision with a white Fiat Uno, as they were pursued from the Ritz Hotel by photographers. Some witnesses said they saw flashes of light in the instant before the crash; other witnesses didn't notice any. Al Fayed's claim is that flashing light...