Japan calls for action on GPS stalking after woman allegedly murdered by ex using hidden device in toy
Pregnant 31-year-old manicurist beaten and stabbed to death in own home; police arrest suspect after viewing surveillance footage

Concerns about Global Positioning System (GPS) tracking have emerged in Japan after a pregnant woman was allegedly tracked down and murdered by her ex-boyfriend using a GPS device hidden in a toy.
The death of Haruka Komatsumoto, a 31-year-old manicurist who was allegedly beaten on the head and stabbed in the neck by her ex-boyfriend in her own flat on December 31, 2025, has shocked many people.
The alleged killing has become a widely discussed topic in the country.
Komatsumoto reportedly suffered from bruises on her arms in an attempt to protect her baby. No property was stolen.
On January 21, the police in Ibaraki prefecture arrested the suspect, Komatsumoto’s 28-year-old ex-boyfriend, Takumi Ouchi.

They dated for less than a year and split in 2024.