Home → Japan
Japan
Country Intelligence Summary
49
Dec. 31, 2025
Top Motives and Outcomes in Japan
Top Motives
- Jealousy — 35 case(s)
- Revenge — 21 case(s)
- Control/domination — 17 case(s)
- Eliminate romantic partner — 14 case(s)
- Money / Financial Gain — 12 case(s)
Top Outcomes
- Arrest made — 42 case(s)
- Legal case ongoing — 32 case(s)
- Homicide during marriage — 30 case(s)
- Investigation still ongoing — 26 case(s)
- Deadbody recovery — 16 case(s)
State / Province Case Counts in Japan
9 case(s)
3 case(s)
3 case(s)
3 case(s)
3 case(s)
3 case(s)
2 case(s)
2 case(s)
2 case(s)
1 case(s)
1 case(s)
1 case(s)
1 case(s)
1 case(s)
1 case(s)
1 case(s)
1 case(s)
1 case(s)
Cases in Japan: Outcome — Homicide during marriage
Haruka Komatsumoto Murder Case, Shika, Ibaraki, Japan
On December 31, 2025, Haruka Komatsumoto, a 31-year-old pregnant manicurist, was found stabbed and beaten in her apartment in Shika, Ibaraki Prefecture. Her husband discovered her bleeding at the entrance. The police found no signs …
State/Province: Ibaraki, Japan | City/Region: Shika | Incident Type: Murder | Date: Dec. 31, 2025
View DetailsHaruka Komatsumoto Allegedly Murdered by Takumi Ouchi, Mito, Ibaraki, Japan
Haruka Komatsumoto, a pregnant nail technician in Mito, Ibaraki Prefecture, was allegedly murdered by her ex-boyfriend Takumi Ouchi. The case involves stalking, obsessive behavior, and a brutal attack using two weapons—a hammer and a kitchen …
State/Province: Ibaraki, Japan | City/Region: Mito | Incident Type: Murder | Date: Dec. 27, 2025
View DetailsKaren Suzuki Murdered by Shogo Nishimitsu, Osaka, Japan
On May 16, 2024, Karen Suzuki, a 19-year-old university student living in Osaka, was fatally stabbed by her boyfriend Shogo Nishimitsu, who confessed to the murder. Nishimitsu had lied about his employment status and concealed …
State/Province: Osaka, Japan | City/Region: Osaka | Incident Type: Domestic Violence Homicide | Date: May 16, 2024
View DetailsMs. M Disappearance Involving Shota Ozawa, Kofu City, Yamanashi, Japan
In spring 2024, Ms. M, a 40-year-old employee in Kofu City, Yamanashi Prefecture, disappeared after leaving work. Security footage showed colleague Shota Ozawa waiting for her and later interacting with her. Ozawa had stalked Ms. …
State/Province: Yamanashi, Japan | City/Region: Kofu City | Incident Type: Murder | Date: April 30, 2024
View DetailsMr. Takahashi and Ms. Kim Allegedly Murdered by Morales and Delacruz, Sumicho 3-chome, Tokyo, Japan
In January 2024, a married couple, Mr. Takahashi and Ms. Kim, went missing from their Tokyo home. Initially, police did not act urgently despite bloodstains reported by their son. Two days later, the couple's bodies …
State/Province: Tokyo, Japan | City/Region: Sumicho 3-chome | Incident Type: Domestic Violence Homicide | Date: Jan. 16, 2024
View DetailsShota Allegedly Murdered by Tatsuya and Misako, Wakayama City, Japan
In Wakayama City, a tragic family incident occurred involving a remarried couple, Tatsuya and Misako, and Misako's son Shota. Tatsuya, who was unemployed and addicted to pachinko, frequently demanded money from Misako and subjected her …
State/Province: None | City/Region: Wakayama City | Incident Type: Family Homicide | Date: Jan. 14, 2023
View DetailsKako Sasaki Allegedly Murdered by Kojiro Yamamoto, Sakai City, Osaka, Japan
On August 26, 2022, Kako Sasaki, a 20-year-old university student in Sakai City, Osaka, was fatally stabbed by her ex-boyfriend Kojiro Yamamoto after a recent breakup. The incident involved domestic violence, jealousy, and a violent …
State/Province: Osaka, Japan | City/Region: Sakai City | Incident Type: Murder | Date: Aug. 26, 2022
View DetailsToshio Ohashi and Yoshito Ohashi Allegedly Murdered by Toshiko Ohashi, Asahi, Chiba, Japan
In November 2021, a fire in a detached house in Asahi, Chiba Prefecture, resulted in the deaths of Toshio Ohashi, a paralyzed husband, and his severely disabled son Yoshito. The wife, Toshiko Ohashi, escaped and …
State/Province: Chiba, Japan | City/Region: Asahi | Incident Type: Domestic Violence Homicide | Date: Nov. 17, 2021
View DetailsHaruka Watanabe Murdered by Ms. A and Watanabe, Niigata City, Niigata, Japan
In 2021, nurse Haruka Watanabe and her one-year-old daughter were found dead at their home in Niigata City. Initially considered a suicide or accident, investigation revealed horizontal rope marks inconsistent with hanging. Haruka's husband, Watanabe, …
State/Province: Niigata, Japan | City/Region: Niigata City | Incident Type: Domestic Violence Homicide | Date: Nov. 7, 2021
View DetailsInoue, Inoue's father, and others Murdered by Endo Ki, Chuo City, Yamanashi, Japan
Endo Ki, a juvenile from Chuo City, Yamanashi Prefecture, developed an obsessive one-sided love for a female classmate, Inoue, which escalated into stalking and ultimately a violent arson-murder attack on her family. After being rejected …
State/Province: Yamanashi, Japan | City/Region: Chuo City | Incident Type: Domestic Violence Homicide | Date: Oct. 12, 2021
View DetailsWano-ka Allegedly Murdered by Shohei Komori and Izumi Komori, Sumida, Tokyo, Japan
In August 2021, 18-year-old high school student Wano-ka from Sumida Ward, Tokyo, went missing after saying she was meeting a friend. Her body was found days later in Yamanashi Prefecture. Shohei Komori, 27, and his …
State/Province: Tokyo, Japan | City/Region: Sumida | Incident Type: Murder | Date: Aug. 28, 2021
View DetailsTsuyoshi Furukawa Allegedly Murdered by Chiharu Sato and Mr. A, Kyoto City, Kyoto, Japan
In 2021, Tsuyoshi Furukawa, a renowned traditional craftsman in Kyoto, was found dead with multiple stab wounds and an arrow in his back at a love hotel. The suspect, Chiharu Sato, his disciple and involved …
State/Province: Kyoto, Japan | City/Region: Kyoto City | Incident Type: Murder | Date: July 9, 2021
View DetailsMayuko Inada Allegedly Murdered by Hiroshi Miyamoto, Osaka, Japan
In 2021, Mayuko Inada, a 25-year-old karaoke pub owner in Osaka, was stalked and murdered by Hiroshi Miyamoto, a married engineer who persistently harassed her despite clear rejection. Miyamoto sent her numerous daily messages, followed …
State/Province: None | City/Region: Osaka | Incident Type: Murder | Date: June 11, 2021
View DetailsNoriko Suwa Allegedly Murdered by Maiko Suwabe, Sotoizumi, Shizuoka, Japan
In March 2020, Noriko Suwa, a 69-year-old mother-in-law living in Sotoizumi, Shizuoka Prefecture, was found stabbed to death in her home. The initial report came from her daughter-in-law, Maiko Suwabe, who claimed an unknown masked …
State/Province: Shizuoka, Japan | City/Region: Sotoizumi | Incident Type: Domestic Violence Homicide | Date: March 10, 2020
View DetailsHusband, Mother-in-law, and others Allegedly Murdered by Masako Kishimoto, Tsuruga, Fukui, Japan
On November 17, 2019, in Tsuruga, Fukui Prefecture, Masako Kishimoto, aged 72, allegedly murdered her 95-year-old mother-in-law, 93-year-old father-in-law, and 70-year-old husband in their shared home. The killings were reportedly motivated by extreme caregiving fatigue, …
State/Province: Fukui, Japan | City/Region: Tsuruga | Incident Type: Family Homicide | Date: Nov. 17, 2019
View Details