Hers is a tragic tale with FBI conspiracy theories, a dodgy husband, drugs, suicide attempts, guilt. I can't go into it all but I recommend you take a look: http://en.wikipedia.org/wiki/Jean_Seberg
1938-1979 Known for roles in Saint Joan (a fireball hit her full in the face during the final scene and is shown in the film), A bout de souffle, Paint your wagon and for her haircut "The Seberg" which had women in the 60s trying to look like elves.