A major criminal investigation is unfolding in Tokyo after an IT company executive was arrested on body disposal charges. Water Mizuguchi, 49, the representative director of an IT-related firm, faces allegations that he disposed of a missing executive’s body near Ōtarumi Pass in Kanagawa Prefecture. The case has captured public attention as police conduct extensive searches in mountainous terrain. Investigators discovered that Mizuguchi purchased blue sheets and air freshener around the time the body was allegedly moved, raising questions about premeditation. The missing executive, a man in his 50s, vanished in late September 2025, and his disappearance was reported to police in October. This developing case highlights serious concerns about corporate accountability and criminal conduct within Japan’s business sector.
The Arrest and Initial Investigation
Water Mizuguchi, 49, was arrested on April 17 for allegedly disposing of a body connected to a missing company executive. The Tokyo IT company where Mizuguchi served as representative director became the center of a criminal investigation after a 50-year-old male executive disappeared in late September 2025. Police began their inquiry after a female acquaintance reported the executive missing on October 10, 2025.
Mizuguchi’s Initial Statement to Police
When police first questioned Mizuguchi in early October 2025, he claimed he could not reach the missing executive and was having difficulty with administrative procedures. This statement now appears suspicious given the subsequent discovery of evidence linking him to the alleged body disposal. Investigators believe Mizuguchi may have been attempting to establish a false narrative about the executive’s disappearance.
Evidence of Premeditation
Police discovered that Mizuguchi purchased blue sheets and air freshener during early October 2025, precisely when the body was allegedly moved from the company office. The purchase of air freshener is particularly significant, as it suggests an attempt to mask odors and conceal evidence. These purchases occurred shortly after the executive’s disappearance, strengthening the prosecution’s case.
The Search Operation at Ōtarumi Pass
Police launched an extensive search operation in the mountainous region near Ōtarumi Pass in Kanagawa Prefecture after discovering that Mizuguchi had rented a vehicle and visited the area in early October 2025. Investigators believe the body may have been disposed of in this remote location, prompting coordinated search efforts across multiple days. The terrain is challenging, with steep cliffs and dense vegetation complicating the recovery operation.
Rental Car Movements and Route Analysis
According to investigative sources, Mizuguchi traveled through the Takao area and western Kanagawa regions using a rental vehicle in early October 2025. This movement pattern suggests deliberate planning to reach a secluded disposal location. Police are analyzing toll records, GPS data, and surveillance footage to reconstruct his exact route and confirm the disposal site.
Search Team Operations
Police search teams have been systematically combing through the mountainous terrain near Ōtarumi Pass since April 18. Officers work in coordinated groups, using metal rods to probe through dried grass and undergrowth. The challenging topography and dense vegetation have made the search difficult, but authorities remain committed to locating the body and gathering physical evidence.
Timeline of the Missing Executive
The missing executive was last seen on September 28, 2025, marking the beginning of a timeline that would lead to Mizuguchi’s arrest nearly six months later. The executive’s disappearance went unnoticed for approximately two weeks before a female acquaintance reported him missing to police on October 10, 2025. This delay in reporting may have given Mizuguchi time to dispose of the body and attempt to cover his tracks.
Body Storage and Movement Theory
Investigators believe the body was stored inside the company office for a period before being moved in early October 2025. This theory explains the gap between the executive’s disappearance in late September and the purchase of blue sheets and air freshener in early October. The storage period would have created odor issues, prompting Mizuguchi’s purchase of air freshener to mask evidence.
Denial and Investigation Expansion
Mizuguchi has denied all charges, claiming he did not dispose of the body. However, the circumstantial evidence—including the rental vehicle movements, material purchases, and his suspicious initial statement to police—paints a compelling picture. Police continue to expand their investigation, examining phone records, financial transactions, and witness statements to build a stronger case.
Legal and Corporate Implications
This case raises serious questions about corporate governance and accountability within Japan’s IT sector. The alleged crime occurred within a company office, suggesting potential workplace violence or a conflict that escalated to murder. The involvement of a company representative director in such a serious crime undermines trust in corporate leadership and raises concerns about workplace safety.
Corporate Responsibility and Oversight
The IT company where Mizuguchi served as representative director now faces scrutiny regarding its internal controls and oversight mechanisms. How did a missing executive go unnoticed for two weeks? What systems were in place to monitor executive whereabouts? These questions will likely lead to broader discussions about corporate governance standards in Japan.
Impact on the IT Industry
This high-profile case may prompt IT companies and other businesses to review their internal security protocols and employee welfare programs. The incident demonstrates that criminal activity can occur at the highest levels of corporate management, necessitating stronger oversight and transparency measures across the industry.
Final Thoughts
The Tokyo body disposal case represents a significant criminal investigation that has captured public attention and raised important questions about corporate accountability and workplace safety. Water Mizuguchi’s arrest on April 17 for allegedly disposing of a missing executive’s body near Ōtarumi Pass marks a critical development in a case that began with a disappearance in late September 2025. The evidence—including rental vehicle movements, purchases of blue sheets and air freshener, and Mizuguchi’s suspicious initial statements to police—suggests premeditation and deliberate concealment. Police continue their search operations in Kanagawa’s mountainous terrain while expanding their i…
FAQs
Water Mizuguchi, 49, is a Tokyo IT company representative director arrested April 17 for allegedly disposing of a missing executive’s body near Ōtarumi Pass in Kanagawa Prefecture. He denies the charges.
The executive, a man in his 50s, was last seen September 28, 2025. His disappearance went unnoticed for two weeks until a female acquaintance reported him missing on October 10, 2025.
Police found Mizuguchi rented a vehicle and traveled to Takao and western Kanagawa in early October 2025. He purchased blue sheets and air freshener, suggesting evidence concealment. His suspicious initial police statement also raised concerns.
Police conduct extensive searches in mountainous terrain near Ōtarumi Pass in Kanagawa Prefecture. Search teams systematically comb the area since April 18, using metal rods to probe dried grass and undergrowth.
This case raises questions about corporate governance, workplace safety, and accountability in Japan’s IT sector. It may prompt businesses to strengthen internal security protocols and employee welfare programs with enhanced oversight mechanisms.
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.
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