[1] He revealed his identity in January 2024 in a hospital in Kanagawa, stating he wanted to spend the final days of his life using his real name.
[1][6] Kirishima was born in Kannabe-cho, Fukuyasu District (today part of Fukuyama city), Hiroshima Prefecture,[7] on January 9, 1954.
[6] In April 1974 he began studies at the Faculty of Law of Meiji Gakuin University in Tokyo, where he met Yoshimasa Kurokawa, and Hisauchi Ugajin, members of the Scorpion (さそり, sasori) cell of the East Asia Anti-Japan Armed Front (EAAJAF).
[8] In April 1975, Kirishima was put on a nationwide wanted list and went on the run after he allegedly helped set up a bomb that blew up part of Economic Research Institute of Korea building in Tokyo's Ginza district.
On May 31, Kirishima telephoned his family in Hiroshima, revealing to his father that, "I'm in Okayama with two women ... prepare some money ... thinking about escaping overseas ...".
[15] The man who claimed to be Kirishima had checked himself under his pseudonym into the hospital for terminal cancer and while undergoing treatment, told hospital staff that he was the fugitive Satoshi Kirishima and that he made this confession as he felt he would die soon and wanted to live what was left of his life under his real name.