Iwao Hakamada before he went to prison in 1966 and after his release on Thursday. Now 78, he was sentenced to death in 1968 for the murders of four people and may have been the world's longest-serving death row inmate. Newly analyzed DNA evidence indicates he may be innocent. A retrial has been ordered. Kyodo/Reuters/Landov hide caption

itoggle caption Kyodo/Reuters/Landov