The Japanese Rail Union, Doro-Chiba, along with the defense committee for Japanese political prisoner Hoshino Fumiaki, have issued a letter calling for Mumia’s release and the disclosure of all files by the Pennsylvania DA.
Hoshino Fumiaki is Japan’s most famous political prisoner. He was framed for murdering a policeman by the Japanese government in retaliation for protesting against the Okinawa Reversion Agreement, which ratified the continuing US bases in Okinawa, in 1971.
A link to the letter and the text are below.