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Mary Jo Kopechne

Mary Jo Kopechne, shown in this undated photo, was killed after Sen. Edward Kennedy drove a car off a bridge on Massachusetts’ Chappaquiddick Island on July 18, 1969. (Photo: AP)

Chappaquiddick: A tragedy that changed the course of American history

In the summer of 1969, Sen. Edward “Ted”. Kennedy left a party on Chappaquiddick island neat Martha's Vineyard, Mass., with Mary Jo Kopechne. Later that night Kennedy's car plunged off the narrow wooden Dike Bridge into a pond. Kennedy was able to escape, but Kopechne drowned. Here’s a look back at that tragic day and its aftermath.

Here’s a look back at that tragic day and its aftermath.

See FULL STORY by Christopher Wilson/Yahoo News

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