Embedded Player In 2004, All Things Considered aired a documentary called "Mandela: An Audio History" by producers Joe Richman and Sue Johnson of Radio Diaries. It tells the story of the struggle against apartheid through the voices of Mandela and the people who fought with and against him.This selection from that documentary recalls Mandela's treason trial, in which he was convicted and sentenced to serve life in prison on Robben Island.