Regarding the death of Abubakar Awudu Suraj in the hands of the Japanese immigration officers, his Japanese wife along with her lawyer and a representative from APFS held a press conference yesterday at the Foreign Correspondents' Club of Japan. You can read a Japan Times article by Minoru Matsutani here.
Earlier, I wrote a letter to the Editor at Japan Times, which can be found here.
APFS on its blog encourages the readers to send a message of protest to the Ministry of Justice.