Originally Posted by alan11

Japanese police and/or media do not want to publish the name of the "religious organization" for probably a slew of reasons, hence why they are being vague. By doing so it could lead to the harm of other members, calls for revenge, investigations on the assassin's claims, and would put a spotlight on whether this organization is influencing the government and any corruption involved.

That said, it was inevitable for it to come out, and now Gendai Business News (via Yahoo News) has announced that it is the Unification Church (aka The Moonies), which many already suspected.
https://news.yahoo.co.jp/articles/6b...26786d22ed69d3

If you don't know them, look them up (they are often described as "Christian-fascist"). They are massively influential worldwide and own several media outlets, including UPI. Trump even has links with them and spoke at their events.