Witness in Philadelphia
In 1977, she published Witness in Philadelphia: a Mississippi WASP's Account of Civil Rights Murders which told of her activities in the civil rights movement and the murder of the three activists. This book helped to keep interest alive in the murders with the success of Mississippi Burning making many more people aware of the incident. As a result of this incident, Killen was sentenced to sixty years in jail on June 1, 2005.
Mars died in Philadelphia, Mississippi, aged 83, of Bell's palsy and diabetes from which she had been suffering.
Read more about this topic: Florence Mars