A dying prisoner has been released in Louisiana after serving nearly 42 years in solitary confinement, longer than any other person in the United States. Herman Wallace and two others, known as the Angola Three, were placed in solitary in 1972 following the murder of a prison guard. The Angola Three and their supporters say they were framed for the murder over their political activism as members of one of the first prison chapters of the . In a surprise development on Tuesday, Wallace was released from prison after a federal judge overturned his conviction, saying he did not receive a fair trial. Wallace, who is near death from advanced liver cancer, was taken directly to a New Orleans hospital where supporters greeted his arrival.