On April 7, 2020, John Prine died aged 73. He was singer – songwriter and musician (guitar), known for his music that has elements of protest and social commentary. His song “Sam Stone” stands as a reference to the phenomenon of heroin  or morphine  addiction among Vietnam war veterans. During 2005 at the request of U.S. poet laureate Ted Kooser, John Prine became the first singer – songwriter to read and perform at the Library of Congress. Prine won two “Grammy Awards” and recorded eighteen albums.