REMEMBER PRINCESS DIANA'S CRASH https://www.cbc.ca/news/world/flash-of-light-then-diana-s-fatal-crash-witness-testifies-1.635135
'Flash of light,' then Diana's fatal crash, witness testifies | CBC News
A motorist who was driving in the Paris tunnel seconds before the crash that killed Diana testified on Monday that he saw a blinding flash of light just before the collision, then noticed two men on a motorcycle gesture to each other as if to indicate the job was done after surveying the wreckage.
https://www.cbc.ca/news/world/flash-of-light-then-diana-s-fatal-crash-witness-testifies-1.635135