Key Points
Kudokai yakuza member Matsuzaki convicted of seven violent crimes.
Supreme Court rejected appeal on June 15, confirming life sentence.
Crimes included 2011 construction company chairman shooting and 2012 police superintendent attack.
Gang members continue facing arrests for trafficking minors into prostitution.
Japan’s Supreme Court rejected an appeal on June 15, confirming a life sentence for a Kudokai yakuza gang member. The 60-year-old was convicted of involvement in seven violent crimes between 2011 and 2012, including the shooting death of a construction company chairman and an attack on a former police superintendent. The ruling closes a legal battle that spanned multiple court levels in Fukuoka.
Supreme Court Ends Legal Battle
The Fukuoka District Court originally sentenced the defendant, known as Matsuzaki (formerly Taguchi Yoshitaka), to life imprisonment. The Fukuoka High Court upheld this decision on appeal. When Matsuzaki’s legal team filed a final appeal with Japan’s Supreme Court, the court rejected the appeal on June 15, making the life sentence final.
Seven Crimes Across Two Years
Matsuzaki was convicted of involvement in seven violent incidents. These included the 2011 shooting death of a construction company chairman in Kitakyushu and the 2012 shooting of a former Fukuoka police superintendent. The charges encompassed murder and attempted murder. The crimes occurred during a two-year period that marked significant organized crime violence in the Fukuoka region.
Yakuza Gang Activity Continues
Beyond this conviction, Kudokai gang members face ongoing criminal investigations. In June 2026, police arrested two gang members for trafficking minors into prostitution, allegedly generating 2 million yen monthly from multiple victims. The gang remains classified as a designated dangerous organized crime group in Japan.
Final Thoughts
The Supreme Court’s rejection of Matsuzaki’s appeal ends a years-long legal process and confirms Japan’s commitment to prosecuting organized crime violence. The life sentence removes a high-ranking gang member from circulation permanently.
FAQs
He was convicted of seven violent crimes including the 2011 shooting death of a construction company chairman and the 2012 shooting of a former police superintendent.
The case progressed through district court, high court, and Supreme Court. The Supreme Court rejected the final appeal on June 15, 2026.
The Kudokai is a designated organized crime group in Japan. Members have been convicted of murder, attempted murder, and human trafficking offenses.
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Danny Kontos
Co FounderDanny Kontos has been a stock investor since 2007 and co-founded Meyka in 2023. He keeps a small, focused portfolio and only moves when the numbers are hard to argue with. He has waited years on a single position before. Before Meyka, he ran a web hosting company and a mortgage lending platform, so he knows what a well-run business actually looks like under the hood. This article did not come from a news cycle. It came from someone who has been watching this space for a long time.
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