"They trusted him," the aunt of victim Mary Jo Kopechne tells PEOPLE. "They loved the Kennedys. Everyone did. But later on, they started to question what happened" Liz McNeil is an Editor at Large ...

"I'm not convinced the mystery has been solved," Mary Jo Kopechne's cousin tells PEOPLE. "I know there are things that we do not know about what happened that night" Liz McNeil is an Editor at ...

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Edmund Dinis, the Massachusetts prosecutor who investigated the death of Mary Jo Kopechne in Sen. Edward Kennedy's car, has died. He was 85. Mary Jo Kopechne (July 26, 1940 – July 18 ...

On the eve of the moon landing, Senator Kennedy becomes entangled in a tragic car accident that results in the death of former Robert Kennedy campaign worker Mary Jo Kopechne. The Senator ...