It doesn't go too in depth but here is an interesting article about it
Quote:
SNA (Tokyo) — Unemployed loner Tetsuya Yamagami hoped to use his homemade shotgun on Shinzo Abe not mainly to kill Japan’s longest-serving prime minister, but to take his revenge on the Unification Church, which he blamed for destroying his life and that of his family. Improbably, the assassination has become a wild political success. Yamagami’s “bank shot” strategy achieved more than he could possibly have hoped.
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Source and rest of story:
https://shingetsunewsagency.com/2022...-wild-success/