During her time in prison, Marks claimed to experience psychological problems, including a multiple personality disorder. She said her body was possessed by the consciousness of other people. After serving nearly 30 years in jail, Marks was granted a pardon in 1872.

Are Grace Marks innocent?

Grace Marks is said to be Canada's Lizzie Borden, a woman accused in a controversial case of which many thought she was innocent. Indeed, she is ultimately pardoned and released after spending almost 30 years in prison.

What is the true story of Grace Marks?

Grace Marks (c. July 1828 – after c. 1873) was an Irish-Canadian maid who was involved in the 1843 murder of her employer Thomas Kinnear and his housekeeper, Nancy Montgomery, in Richmond Hill, Ontario.