Watch National Geographic Documentaries online: Episode 22 The Conspirator: The Plot to Kill Lincoln

Mary Surratt was the only woman convicted in Lincoln's assassination, the first female to be executed by the U.S. government and now the basis for Robert Redford's The Conspirator. Just days before the feature film hits theaters, NGC presents a complementary documentary on her role in the 16th president's death. The Plot to Kill Lincoln: The Conspirator weaves together excerpts from the movie with historical records and expert interviews to tell the dramatic story.

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