People do not want princesses to perish this way. So her demise must be the result of a British plot of MI6 (Military Intelligence, Section 6, their counterpart to our CIA), or so the conspiracy folks believe.

Researchers have discovered that people who cling to conspiracy theories try to find confirming evidence of their theories. So they seek out any incongruity or variance from the official line.

In the case of Princess Diana, it was lack of television images of the Mercedes from the hotel to the tunnel and paint specks from a white Fiat Uno car found on the wrecked vehicle or a bright flash of light seen in the tunnel.

In the Kennedy assassination, it was gunshot sounds echoing off the buildings in Dealey Plaza, or a second shooter on the grassy knoll, or smoke seen over a fence, or a botched autopsy or Jack Ruby shooting the shooter.

Conspiracy theorists cling to any little discrepancy, unknown anomaly, or pure happenstance. They tend to discount the overwhelming evidence that the murder, in the Kennedy case, was the act of a lone shooter.