Tokyo police have arrested the president of an IT-related company on suspicion of abandoning a corpse after bloodstains were found in the company’s office and a male executive has been missing since last autumn.
The suspect, identified as 49-year-old Mizuguchi Katsuya, president of Linux Japan, was taken into custody on April 17, 2026, by investigators from the Tokyo Metropolitan Police Department’s First Investigative Division. He is accused of disposing of a male body believed to be that of a 50s-aged company officer from the firm’s office in Akasaka, Minato Ward, sometime around October 5–6, 2025.
According to investigative sources cited in multiple Japanese media reports, the missing officer has not been seen since September 28, 2025, when he was last confirmed leaving his residence in Roppongi by bicycle in casual attire. No signs of disturbance were found at his home and a substantial amount of cash remained inside, which investigators noted made spontaneous disappearance or suicide unlikely.
Bloodstains matching the missing officer were reportedly discovered during a forensic inspection of the company’s office space. Despite extensive searches, the body has not been recovered. Police have established a murder investigation task force at the Azabu Police Station, citing the possibility of homicide given the circumstances and reported financial disputes between the two men over executive compensation.
Mizuguchi has denied the allegations, stating through his legal representatives that he did not commit the act. Investigators noted that he had rented a car in Koto Ward around the time the body is alleged to have been moved, raising the possibility that he used a vehicle to transport it to another location.
The case came to light after a female acquaintance reported the officer’s prolonged absence to police in October 2025, prompting a preliminary inquiry. A follow-up report in February 2026 led authorities to launch a full-scale investigation. Linux Japan, described in reports as an IT-related firm based in Tokyo, has not issued a public statement regarding the arrest of its president.
Investigation Focuses on Financial Dispute and Missing Timeline
Authorities are examining whether a conflict over unpaid director’s fees or other financial matters may have motivated the alleged crime. The missing officer was reportedly scheduled to attend several professional engagements in the months following his disappearance, none of which he attended, further undermining theories of voluntary absence.
Surveillance footage from near the officer’s apartment building showed no unusual activity on the day he vanished, and his personal belongings, including identification and electronic devices, were left behind. These details have led investigators to treat the case as suspicious from the outset.
Whereas the exact nature of the alleged disagreement between Mizuguchi and the officer remains under investigation, police have confirmed that interviews with associates and financial auditors are ongoing to establish a timeline of interactions and potential motives.
Legal Proceedings and Next Steps
As of the date of arrest, Mizuguchi remains in police custody at the Azabu Station detention facility. He has not been formally indicted, and prosecutors are expected to review the evidence gathered by investigators before deciding on formal charges, which could include corpse abandonment or, if sufficient evidence emerges, murder.
Under Japanese law, the offense of abandoning a corpse (死体遺棄, shitai iji) carries a penalty of up to three years in prison or a fine of up to 500,000 yen. If charged with murder, the potential sentence ranges from five years to life imprisonment, or in rare cases, the death penalty.
The Tokyo Metropolitan Police have not announced a date for Mizuguchi’s first court appearance or the submission of investigative findings to the public prosecutors’ office. Updates on the case are expected to be released through official police channels or via press briefings as the investigation progresses.
For the latest official information, members of the public are encouraged to monitor announcements from the Tokyo Metropolitan Police Department or consult updates from Japan’s national public broadcaster, NHK, which has been covering developments in the case.
This story is based on verified reports from Japanese news agencies and law enforcement sources. World Today Journal will continue to follow the case and report on any significant developments as they become available through credible, authoritative channels.
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