Key Facts
• August 20, 2025: A 24-year-old woman, Megumi Katayama, was fatally stabbed in Kobe.
• August 22, 2025: Suspect Masashi Tanimoto, 35, arrested 400 km away in Okutama, Tokyo.
• Tanimoto admitted to stabbing Katayama once or twice but denied clear intent to kill.
• Surveillance footage showed Tanimoto following Katayama for over 10 minutes before the attack.
• Incident occurred in Katayama’s apartment elevator after Tanimoto bypassed the auto-lock.
• Tanimoto fled to Tokyo via Shinkansen after discarding a 15 cm knife near the crime scene.
• Tanimoto was on summer vacation from his driver job, which he started in May 2023.
• He had a history of job changes and financial struggles, supporting his ailing father.
• Former colleagues described him as diligent and leader-like, with no known romantic ties.
• Katayama, a trusted insurance company employee, had no prior police-reported disputes.
• Katayama’s family expressed relief at the arrest but remains in deep grief.
• Police are investigating the relationship between Tanimoto and Katayama.
Summary
Masashi Tanimoto, 35, was arrested on August 22, 2025, in Okutama, Tokyo, for the fatal stabbing of 24-year-old Megumi Katayama in Kobe two days earlier. Surveillance footage revealed Tanimoto followed Katayama for over 10 minutes before attacking her in her apartment elevator. He fled to Tokyo via Shinkansen, discarding the weapon nearby. Tanimoto, described as a diligent and leader-like employee, was on summer vacation from his driver job at the time. Katayama, a trusted insurance company employee, had no known disputes. Her family expressed gratitude for the investigation but remains in mourning. Police are probing the connection between the suspect and victim.
