Fifty-nine witnesses saw the limousine either come to a near stop or stopped. The odds of them all being "mistaken" are astronomical. For the full details see my "Statements That Sink The WC's Conclusions" series #s 215-218.
You can toss out those who say it stopped. They are WRONG.
Those who say it slowed are correct but those who say it came to a near stop show poor judgement.
To argue the car stopped is to claim that impossible film tampering went on. Anyone who continues to make that claim would have zero cred even at a convention for kooks.