On this day, January 22, in 1973, former US President Lyndon Baines Johnson died of a heart attack at the age of 64. Johnson served as the 36th President of the United States from 1963 to 1969. He was photographed by Karsh as Senator Johnson in 1960, and again in 1963, soon after Johnson was sworn in as President in the wake of the assassination of John F. Kennedy.