Takashi Ishizuka

Takashi Ishizuka — Sumiyoshi-kai affiliate boss murdered while under police guard in 2002.

Role and period

Sumiyoshi-kai affiliate boss murdered while under police guard in 2002.

Primary organization/context: Sumiyoshi-kai. Period: 2000s.

Why this person matters

Connects to a dramatic hospital assassination and Sumiyoshi/Inagawa conflict.

This profile is designed as a canonical node rather than a stand-alone celebrity biography. The priority is to show where this person sits in the hierarchy, who they succeeded or challenged, which organization they belonged to at different points in time, and which events changed their position.

Network position

The strongest existing the archive connections are Sumiyoshi Kai. Those links should be treated as dated relationships where affiliation or leadership changed over time.

Expansion path

A later deep audit should add: – verified birth/death dates where available; – exact leadership titles and dates; – convictions, sentences or major court outcomes where applicable; – major rivals, allies and succession relationships; – documented events that justify the person’s place in the Japan graph.

This profile should enrich the existing canonical profile rather than create parallel pages for the same individual.

Sources / audit anchors

– [Japan National Police Agency — Police of Japan / Organized Crime](https://www.npa.go.jp/english/) — Primary official background source for designated boryokudan, enforcement and organized-crime policy. – [Japan National Police Agency — White Papers](https://www.npa.go.jp/publications/whitepaper/) — Primary archive for historical and modern boryokudan data.