1969Sen. Ted Kennedy pleaded guilty to leaving the scene of an accident one week after accidentally driving his car off a Chappaquiddick, Mass., bridge, killing his colleague Mary Jo Kopechne. Kennedy swam free, left the scene and did not report the accident for nine hours. He received a two-month suspended jail sentence.1997Autumn Jackson was found guilty of trying to extort $40 million from Bill Cosby. Jackson had threatened to go to the tabloids with her claim to be Cosby’s illegitimate child. That year Cosby …