Body Disposal Case Without a Body: The Investigation That Led to an Arrest

A suspect, Kazuya Mizuguchi (49), representative director of an IT-related company in Akasaka, Tokyo, has been arrested on suspicion of abandoning a body. The suspect denies the allegations, stating “I did not do it,” and the body has not been found.

According to the First Investigation Division, a male director in his 50s from the company headed by the suspect has gone missing, and the body he is suspected of abandoning may be that of this man. With the body still undiscovered, how did investigators solidify the case and proceed with the arrest?

According to investigative sources, the initial report that triggered the inquiry came in October 2025.

“(We) cannot get in contact with (the male director of the IT-related company).”

This was reported to the Azabu Police Station…

Akasaka

Akasaka is a vibrant commercial and entertainment district in central Tokyo, historically known as a prestigious residential area for feudal lords during the Edo period. Today, it is famous for its modern skyscrapers, the Akasaka Palace (State Guest House), upscale hotels, and a bustling nightlife scene with numerous restaurants and bars.

Tokyo

Tokyo, originally a small fishing village called Edo, became Japan’s political center in 1603 when Tokugawa Ieyasu established his shogunate there. It was renamed Tokyo (“Eastern Capital”) in 1868 when the emperor moved from Kyoto, beginning its transformation into a global metropolis. Today, it is a vast, modern capital renowned for its cutting-edge technology, dense urban landscape, and deep cultural heritage, seamlessly blending historic temples and shrines with futuristic skyscrapers.

First Investigation Division

The “First Investigation Division” was a major division within Japan’s National Police Agency. It was established in the post-World War II era and was primarily responsible for investigating political crimes, terrorism, and subversive activities. The division was officially dissolved in 2017 as part of a major reorganization of the agency.

Azabu Police Station

Azabu Police Station is a historic police station located in the Azabu district of Tokyo, Japan. It was originally established in 1874 during the early Meiji period, making it one of the oldest police stations in the city, and it has played a significant role in the area’s security and community affairs for nearly 150 years. Today, it continues to serve the upscale residential and diplomatic neighborhood of Minato City.

Akasaka

Akasaka is a vibrant commercial and entertainment district in central Tokyo, historically known as a prestigious residential area for feudal lords during the Edo period. Today, it is famous for its modern skyscrapers, upscale hotels, the Akasaka Palace state guest house, and its lively nightlife and dining scene.

Tokyo

Tokyo, originally a small fishing village called Edo, rose to prominence after becoming the seat of the Tokugawa shogunate in 1603. It<div class="my-4 p-4 rounded

Akasaka

Akasaka is a district in central Tokyo known for its blend of upscale hotels, dining, and nightlife, alongside historic shrines and the modern Akasaka Sacas complex. Historically, it was a low-lying area developed in the Edo period (1603-1868) as a residential quarter for mid-ranking samurai and later became a prominent entertainment and geisha district. Today, it is also notable as the location of important political institutions, including the State Guest House (Akasaka Palace) and the National Diet.

Tokyo

Tokyo is the bustling capital of Japan, originally established as the small fishing village of Edo. It rose to prominence after becoming the seat of the Tokugawa shogunate in 1603 and was renamed Tokyo when the emperor moved there in 1868, beginning the Meiji Restoration. Today, it is a global metropolis known for its towering skyscrapers, historic temples, and cutting-edge technology and pop culture.

Akasaka Palace (State Guest House)

Akasaka Palace, officially known as the State Guest House, is a historic Neo-Baroque palace in Tokyo originally constructed in 1909 as the Crown Prince’s residence. It now serves as Japan’s primary facility for hosting foreign dignitaries and state events, having been designated a National Treasure of Japan for its architectural and cultural significance.

Edo period

The Edo period (1603-1868) was a transformative era in Japanese history, marked by over 250 years of peace, stability, and isolation under the rule of the Tokugawa shogunate. It saw the rise of a vibrant urban culture in cities like Edo (modern Tokyo), the formalization of the samurai class system, and the flourishing of arts such as ukiyo-e woodblock prints and kabuki theater. This prolonged isolation ended with the arrival of Commodore Perry in 1853, leading to the Meiji Restoration and Japan’s rapid modernization.

Kyoto

Kyoto served as the imperial capital of Japan for over a thousand years, from 794 until 1868, and is renowned as the nation’s historical and cultural heart. It is famed for its exceptionally well-preserved temples, shrines, and traditional wooden machiya houses, with iconic sites like Kinkaku-ji (the Golden Pavilion) and Fushimi Inari Shrine attracting millions of visitors annually. The city’s rich heritage, including traditional arts like tea ceremony and geisha culture, survived World War II largely intact, making it a living museum of classical Japan.

Meiji period

The Meiji period (1868–1912) was a transformative era in Japanese history, marking the end of the feudal shogunate and the restoration of imperial rule under Emperor Meiji. It was characterized by rapid modernization, industrialization, and the adoption of Western political, military, and cultural models, which propelled Japan from an isolated island nation into a major world power.

Tokugawa Ieyasu

Tokugawa Ieyasu was the founder and first shogun of the Tokugawa shogunate, which ruled Japan from 1603 until 1868. After unifying the nation following the Battle of Sekigahara in 1600, he established his government in Edo (modern Tokyo), ushering in over 250 years of peace, stability, and isolation known as the Edo period.

Azabu Police Station

Azabu Police Station is a historic police station located in the Azabu district of Tokyo, Japan. It was originally established in 1874 during the early Meiji period, making it one of the oldest police stations in the city, and has played a significant role in the area’s public safety and community affairs for nearly 150 years. Today, it continues to serve the upscale residential and diplomatic neighborhood of Minato City.