Akira Nishiguchi
Akira Nishiguchi was a Japanese serial killer and fraudster. While engaging in confidence scams, he murdered two people, was put on the most wanted list, and killed three others while escaping. The police also regretted that they didn't find Nishiguchi, who was found by an 11-year-old girl. A prosecutor called him "the Black Gold Medalist in history". Ryuzo Saki published a book about Nishiguchi, which became the basis for the film Vengeance Is Mine. His crimes were the direct catalyst for the creation of the Japanese "Metropolitan Designated Case" system
