List of Japanese serial killers
A serial killer is typically a person who kills three or more people, with the murders taking place over more than a month and including a significant period of time between them. The Federal Bureau of Investigation (FBI) defines serial murder as "a series of two or more murders, committed as separate events, usually, but not always, by one offender acting alone".
Serial killers have existed in Japan since ancient times, and Japan has the fourth highest number of serial killers in the world after the United States, the United Kingdom, and Russia.[1]
Pre-Empire of Japan serial killers
[edit]Below is a list of serial killers active before the formation of the Empire of Japan in 1889.
| Name | Nickname | Years active |
Proven victims |
Possible victims |
Fate | Notes | Ref. |
|---|---|---|---|---|---|---|---|
| Tokugawa Tadanaga | "Suruga Dainagon" | 1626–1632 | ? | ? | Executed 1634 | Daimyo who killed dozens of vassals. He may have suffered from schizophrenia. Legend has it that he cut up pregnant women and dismembered girls. He was ordered to commit seppuku and was executed in 1634. | [2] |
| Saito Hiroemon | "Yaritsuki" | 1806 | 7 | 7 | Executed 1806 | Thrill killer who killed 7 Homeless and Disabled people with a spear in Edo. | [3] |
| Sadakichi Shimizu | "Pistol robber" | 1882–1886 | 5 | 6 | Executed 1887 | First recorded Japanese serial killer. He robbed and murdered five people in Tokyo between 1882 and 1886 and was executed in 1887. The police officer who arrested him died in 1888 from wounds sustained in a struggle with him; executed in 1887. | [4] |
Empire of Japan serial killers
[edit]Below is a list of serial killers active before the formation of the State of Japan in 1947.
| Name | Nickname | Years active |
Proven victims |
Possible victims |
Fate | Notes | Ref. |
|---|---|---|---|---|---|---|---|
| Shige Sakakura | 1898–1913 | 10 | 200+ | Executed 1915 | Baby farmer from Hioki Wakasa (present-day Nagoya) who suspicions arose that murdered hundreds of infants with two accomplices. She was sentenced to death for ten murders.[5] Sentenced to death and hanged in September 1915. | [6] | |
| Katsutaro Baba | "Katsutaro The Liver Harvester"[7] | 1905–1907 | 6 | 6 | Executed 1908 | Strangled and mutilated five women and one infant in present-day Tatsuno from 1905 to 1907, stealing their gallbladders post-mortem; executed in 1908. | [7] |
| Ryuun Daimai | "The Nun Slayer" | 1905–1915 | 5 | 5+ | Executed 1916 | Former monk who raped and killed at least five people in 1905 and 1915; executed in 1916. | [8][9][10][11][12] |
| Satarō Fukiage | 1906–1915 | 7 | 13–17+[13] | Executed 1926 | When he was 17 years old, he was arrested for raping and murdering a girl. He was later released and raped and murdered at least six additional girls. He was executed in 1926. | [14] | |
| Tokichi Ishii | 1915 | 4 | 4 | Executed 1918 | He committed 40 robberies and rapes and killed four people, including a police officer. He was executed in 1918. | [15] | |
| Ihachiro Nakashima | "Ihachiro The Devil" | 1930 | 7 | 7+ | Year of death unknown | Former police officer who strangled least seven infants through baby farming. Sentenced to life imprisonment. | [16] |
| Yoshio Kodaira | 1932–1946 | 8 | 11+ | Executed 1949 | He was arrested for beating his wife's father-in-law to death with an iron rod in 1932. After his release, he raped more than 40 women and murdered at least seven people in Tochigi and Tokyo; executed in 1949. | [17] | |
| Seisaku Nakamura | "Hamamatsu Deaf Killer" | 1938–1942 | 9 | 11 | Executed 1943 | Deaf boy who killed at least nine people; executed in 1943. | [18][19] |
| Miyuki Ishikawa | "Demon Midwife" | 1946–1948 | 5 | 84–169 | Released in 1956; died in 1987 | Midwife who murdered five infants, but could have been up to 84, between 1946 and 1948. | [20] |
| Takeshi Ishikawa | 1946–1948 | 5 | 84–169 | Released in 1954; Year of death unknown | Committed murders with accomplice Miyuki Ishikawa; sentenced to two years in prison for killing at least five infants. | [20] |
Japan serial killers
[edit]| Name | Nickname | Years active |
Proven victims |
Possible victims |
Fate | Notes | Ref. |
|---|---|---|---|---|---|---|---|
| Genzo Kurita | 1948–1952 | 7 | 8 | Executed 1959 | Necrophile who murdered eight people, including two of his girlfriends. He was found guilty of seven of the eight murders and executed in 1959. | [21] | |
| Sokichi Furutani | 1951–1965 | 8 | 12 | Executed 1985 | Robbed and murdered at least eight people; executed in 1985. | [22] | |
| Kau Kobayashi | 1952–1960 | 3 | 3 | Executed 1970 | Poisoned her husband in 1952, and later killed an inn proprietor and his wife in 1960 with the help of her accomplice; executed in 1970. | [23][24] | |
| Sadame Sugimura | 1960 | 3 | 3 | Executed 1970 | Fatally poisoned three women to steal their money in Kumamoto Prefecture from November to December 1960; executed in 1970. | [25] | |
| Tetsuyuki Morikawa | 1962–1985 | 3 | 3 | Executed 1999 | Sentenced to life in prison for murdering his stepmother in 1962, he was released on parole. He killed two of his ex-wife's relatives after being released on parole; executed in 1999. | [26] | |
| Akira Nishiguchi | 1963 | 5 | 5 | Executed 1970 | Fraudster who killed five people; executed in 1970. | [27] | |
| Akiyoshi Umekawa | 1963–1979 | 5 | 5 | Killed by police | When he was 15 years old, he was arrested for stabbing a woman to death. After his release, he robbed a bank in 1979 and shot and killed four people. He was killed by police. | [28] | |
| Ryuichi Tsukamoto | 1966–1967 | 3 | 3 | Released on parole in the 1980s | Boy who strangled three women to death in Aichi, Chiba, and Yamanashi. | [29] | |
| Susumu Nakayama | 1969–1998 | 3 | 3 | Died in prison awaiting execution | Sentenced to life imprisonment for robbery and murder in 1969, but was later released and stabbed two people to death in 1998. | [30] | |
| Kiyoshi Ōkubo | "The Gunma Kodaira" | 1971 | 8 | 8 | Executed 1976 | Self-proclaimed painter who strangled eight women aged 16 to 21 to death; executed in 1976. | [31] |
| Kiyotaka Katsuta | 1972–1983 | 8 | 22 | Executed 2000 | Firefighter who killed at least eight people; executed in 2000. | [32] | |
| Masakatsu Nishikawa | 1974–1992 | 5 | 5 | Executed 2017 | When he was 18 years old, he stabbed a woman to death and was sentenced to prison. He killed four hostesses after being released and was executed in 2017. | [33] | |
| Takeshige Hamada | 1978–1979 | 3 | 3 | Died in prison awaiting execution | He killed three people for insurance money. | [34] | |
| Toshihiko Hasegawa | 1979–1983 | 3 | 3 | Executed 2001 | Committed murders with accomplice Masamichi Ida, drowning or bludgeoning three people to death for insurance money. He was executed in 2001. | [35] | |
| Masamichi Ida | 1979–1983 | 3 | 3 | Executed 1998 | Committed murders with accomplice Toshihiko Hasegawa, drowning or bludgeoning three people to death for insurance money. He was executed in 1998. | [35] | |
| Miyoko Sumida | "Piranha Grandma" | 1984–2012 | 8 | 11+ | Committed suicide in custody | Leader of the organized crime group known as "Piranha Family". | [36] |
| Yasutoshi Kamata | "The Osaka Ripper" | 1985–1994 | 5 | 5 | Executed 2016 | Strangled and dismembered five women; executed in 2016. | [37] |
| Tsutomu Miyazaki | "Otaku Murderer" | 1988–1989 | 4 | 4 | Executed 2008 | Pedophile who strangled four girls to death and ate their bodies; executed in 2008. | [38] |
| Yoshinori Ueda | "Osaka Dog Lover Murders" | 1992 | 5 | 5 | Sentenced to death | Poisoned five people with suxamethonium from July to October 1992 as part of a fraudulent scheme; sentenced to death. | [39] |
| Gen Sekine | "Saitama Dog Lover Murders" | 1993 | 4 | 7–30+ | Died in prison awaiting execution | Committed murders with accomplice Hiroko Kazama by poisoning four customers. He burned their bones and bodies in drums, and dumped the ashes in forests and rivers. He boasted of 30 murders. | [40] |
| Hiroko Kazama | "Saitama Dog Lover Murders" | 1993 | 4 | 7+ | Sentenced to death | Committed murders with accomplice Gen Sekine by poisoning four customers. He burned their bones and bodies in drums, and dumped the ashes in forests and rivers. | [40] |
| Sachiko Eto | "The Drumstick Killer" | 1994–1995 | 6 | 6 | Executed 2012 | Committed murders with accomplice Hiroshi Nemoto, Yuko Eto and Mitsuo Sekine, Cult leader who lynching and bludgeoned six people to death with a taiko stick. | [41][42] |
| Hiroshi Nemoto | 1994–1995 | 5[a] | 6 | Sentenced to life imprisonment | Committed murders with accomplice Sachiko Eto, Yuko Eto and Mitsuo Sekine, Cultist who lynching and bludgeoned six people to death with a taiko stick. He was sentenced to life imprisonment. | [41][42] | |
| Yuko Eto | 1994–1995 | 6 | 6 | Sentenced to life imprisonment | Committed murders with accomplice Hiroshi Nemoto, Sachiko Eto and Mitsuo Sekine, Cultist who lynching and bludgeoned six people to death with a taiko stick. She was sentenced to life imprisonment. | [41][42] | |
| Mitsuo Sekine | 1994–1995 | 6 | 6 | Released in 2020 | Committed murders with accomplice Hiroshi Nemoto, Yuko Eto and Sachiko Eto, Cultist who lynching and bludgeoned six people to death with a taiko stick. Sentenced to 18 years imprisonment. | [41][42] | |
| Hiroaki Hidaka | "The Suicide Website Murderer" | 1996 | 4 | 4 | Executed 2006 | Killed four prostitutes in Hiroshima in 1996; executed in 2006. | [43] |
| Futoshi Matsunaga | 1996–1998 | 7 | 9 | Sentenced to death | Committed murders with accomplice Junko Ogata. He tortured and killed at least seven of his relatives. | [44] | |
| Junko Ogata | 1996–1998 | 7 | 9 | Sentenced to life imprisonment | Committed murders with accomplice Futoshi Matsunaga. He tortured and killed at least seven of his relatives. | [44] | |
| Yoshitomo Hori | 1998–2007 | 3 | 3 | Sentenced to death | He killed a couple in Hekinan in 1998, then aided in the murder of Rie Isogai in 2007; sentenced to death. | [45] | |
| Takashi Kitamura | 2000–2004 | 5 | 5 | Sentenced to death | Sentenced to prison for killing an 18-year-old boy by hitting him with a wooden sword and pushing him into an irrigation canal in 2000. After his release, he killed four family members along with his three family members. | [46][47] | |
| Yukio Yamaji | 2000–2005 | 3 | 3 | Executed 2009 | Murdered his own mother in 2000, and then murdered a 27-year-old woman and her 19-year-old sister in 2005; executed in 2009. | [48] | |
| Shojiro Nishimoto | 2004 | 4 | 4 | Executed 2009 | Killed a taxi driver and three elderly people during robberies to pay off his debts from January to September 2004; executed in 2009. | [49] | |
| Yasunori Suzuki | 2004–2005 | 3 | 3 | Executed 2019 | Robbed and killed three women in Fukuoka Prefecture from 2004 to 2005; executed in 2019. | [50] | |
| Kanae Kijima | "The Konkatsu Killer" | 2004–2009 | 3 | 7 | Sentenced to death | Fraudster who poisoned at least three husbands. | [51] |
| Hiroshi Maeue | "The Suicide Website Murderer" | 2005 | 3 | 3 | Executed 2009 | Sadist who murdered three suicidal people; executed in 2009. | [52] |
| Lee Masanori | "Violent device" | 2005–2011 | 4 | 4+ | Sentenced to life imprisonment | Member of the organized crime group known as "Piranha Family". | [53][54] |
| Kentaro Sumida | 2005–2011 | 3 | 4+ | Incarcerated | Member of the organized crime group known as "Piranha Family". | [55][56][57] | |
| Mieko Sumida | 2005–2011 | 3 | 3+ | Incarcerated | Member of the organized crime group known as "Piranha Family". | [57] | |
| Jeong Raitaro | 2005–2011 | 3 | 6+ | Incarcerated | Member of the organized crime group known as "Piranha Family". | [57][58][59][60][61] | |
| Rui Sumida | 2005–2011 | 3 | 3+ | Incarcerated | Member of the organized crime group known as "Piranha Family". | [62] | |
| Chisako Kakehi | "Black Widow" | 2007–2013 | 3 | 10 | Died in prison awaiting execution | She poisoned at least three of her husbands. | [63] |
| Hayato Imai | 2014 | 3 | 3+ | Sentenced to death | Caregiver who caused at least three people to fall to their deaths at the nursing home where she worked. | [64] | |
| Takahiro Shiraishi | "The Twitter Killer" | 2017 | 9 | 9 | Executed 2025 | Former scout man who lured eight suicidal people on Twitter (currently X) and strangled a total of nine people to death, including the victim's older brother; executed in 2025. | [65] |
| Hiroki Kishinami | "The Grim Reaper" | 2024-2025 | 4 | 4 | Incarcerated | For the purpose of sex and theft, he assisted five young suicidal men in their suicides, resulting in the deaths of four of them. Sentenced to 5 years imprisonment. | [66] |
Unidentified serial killers
[edit]| Name | Nickname | Years active |
Proven victims |
Possible victims |
Region where active | Notes | Ref. |
|---|---|---|---|---|---|---|---|
| Tokyo Metropolitan Murders | 1968–1974 | 10 | 10 | Chiba, Saitama, Tokyo | An incident in which 10 people were burned to death by someone over a period of six years. The suspect, Etsuo Ono, was acquitted. | [67] | |
| Wednesday Strangler | 1975–1989 | 7 | 7 | Saga | Seven women were strangled to death in 1975 and 1989. The suspect was acquitted. | [68] | |
| North Kanto serial kidnappings and murders | 1979–1996 | 4 | 5+ | Tochigi, Gunma | At least four girls were kidnapped and murdered. The suspect was acquitted. | [69] | |
| Shinjuku–Kabukicho Love Hotel murders | 1981 | 3 | 3 | Tokyo | Four women were attacked, three of them strangled to death with pantyhose. | [70] | |
| Paraquat murders | "Paraquat Killer" | 1985 | 13 | 13+ | Hiroshima, Tokyo | At least 13 people have died after drinking poison-laced soft drinks. | [71] |
Suspected serial killers
[edit]| Name | Nickname | Years active |
Proven victims |
Possible victims |
Fate | Notes | Ref. |
|---|---|---|---|---|---|---|---|
| Osaburo Noguchi | 1902–1905 | 1 | 3 | Executed 1908 | Sentenced to death for the murder of a drug store owner. He was accused of strangling a boy to death, eating his body, and poisoning his brother, but the charges were never brought against him. | [72] | |
| Chizuko Okamoto | 1984-2005 | 1 | 5 | Released in 2019 | She was sentenced to 12 years in prison for killing his daughter. four other bodies were found in her house, including two newborn babies, but no murder case could be established. | [73] | |
| Mamoru Takuma | 1989-2001 | 8 | 10 | Executed 2004 | Mass Murderer who murdered eight children at school in 2001. He also caused two other car accidents between 1989 and 1993, but was never prosecuted because he lied about the cause of the accidents. | [74]。 | |
| Shigeru Yagi | 1989–1999 | 2 | 3 | Died in prison awaiting execution | Poisoned two people with three accomplices between 1995 and 1999, and was suspected of having committed a poisoning in 1989. | [75] | |
| Joji Obara | 1992–2000 | 2 | 2+ | Sentenced to life imprisonment | Korean in Japan who raped 10 people and murdered two of them. | [76][77] | |
| Miyuki Ueta | 2004–2009 | 2 | 6 | Died in prison awaiting execution | She killed a truck driver and two electronics store owners, and four other people around her died under suspicious circumstances. | [78] | |
| Yutaro Sumida | 2005–2008 | 2 | 3+ | Incarcerated | Member of the organized crime group known as "Piranha Family". | [79][55][80] | |
| Koji Nakashima | 2008–2011 | 2 | 3+ | Incarcerated | Member of the organized crime group known as "Piranha Family". | [81][82] | |
| Ayumi Kuboki | 2016 | 3 | 20–48 | Sentenced to life imprisonment | Nurse who poisoned at least three people over the course of several days. | [83] |
Disputed cases
[edit]| Name | Nickname | Years active |
Proven victims |
Possible victims |
Fate | Notes | Ref. |
|---|---|---|---|---|---|---|---|
| Matsudaira Nobuyasu | 1579 and earlier | ? | ? | Executed 1579 | According to legend, he killed a monk because he had failed in a hunt, and killed the people of his territory for the trivial reason of not being good at the Bon festival dance. These legends are not confirmed in the materials of the time, but are recorded in later materials. It is believed that these legends were created to justify his execution. | [84] | |
| Toyotomi Hidetsugu | "Life-Killing Kanpaku"[85] | 1593-1595 | ? | ? | Executed 1595 | According to legend, he shot people to death with his bow during archery practice, shot a farmer to death during gun training, and slit the stomach of a pregnant woman. He also cut down people to test the sharpness of his sword, which he called the "Kanpaku Thousand People Slash". These legends are not confirmed in the materials of the time, but are recorded in later materials. It is believed that these legends were created to justify his execution. | [85][86][87][84] |
| Harada Kinu | "Yoarashi Okinu" | 1872 and earlier | 1 | ? | Executed 1872 | According to folklore, she poisoned multiple people one after another, including her husband. In historical fact, She poisoned her husband to death in order to marry a Kabuki actor. She was sentenced to death and beheaded on March 28, 1872. | [88][89][90] |
| Takahashi Oden | "The Poisonous Woman" | 1872–1876 | 1 | 2+ | Executed 1879 | According to folklore, she poisoned multiple people one after another, including her husband. In historical fact, she was accused of murdering his lover by slitting her throat with a razor. She was sentenced to death and beheaded on January 31, 1879. | [91][92] |
| Masao Minamidate | 1915–1920 | 0 | 7+ | Released; Year of death unknown | Teenager who confessed to being the perpetrator of a familicide in 1915 and to having raped and murdered three girls by 1920. No confessions were obtained in any of the cases, and they were released shortly after their arrests. | [93] | |
| Etsuo Ono | 1968–1996 | 1 | 11 | Sentenced to life imprisonment | Suspect in the Tokyo Metropolitan Murders; he was suspected of the killing by burning of 10 people between 1968 and 1974, but was acquitted in 1991. He committed a murder in 1996. | [94][67] | |
| Daisuke Mori | 1999–2000 | 1 | 10+ | Sentenced to life imprisonment | Nurse who accused of killing at least 10 people at the hospital where she worked. He was sentenced to life imprisonment for one count of murder and four counts of attempted murder and claims to be innocent. | [95] |
See also
[edit]Notes
[edit]- ↑ One murder case resulted in no indictment.
References
[edit]- ↑ "Countries with the Most Serial Killers 2026" (in Japanese). worldpopulationreview.com. Retrieved April 16, 2026.
- ↑ "徳川忠長～兄・家光との確執。そのさま狂気に類せり？" (in Japanese). rekishikaido.php.co.jp. Retrieved April 16, 2026.
- ↑ Nagai, Yoshio (July 18, 2006). "第19話 通り魔殺人". 江戸の愚行. Retrieved May 7, 2026.
- ↑ "The Life and Death of Sadakichi Shimizu: Japan's First Firearm Serial Killer". www.tokyoweekender.com. Retrieved April 16, 2026.
- ↑ 新聞集成大正編年史 大正3年度版 上, 739 page
- ↑ Hiroshi Fukuda (July 31, 2001). 20世紀にっぽん殺人事典 単行本 [20th-century Japanese murder encyclopedia] (in Japanese). Social Shisosha. ISBN 4390502123.
- 1 2 "閉ざされた村で5人の女性を殺害…内臓をえぐり取った男の「本当の狙い」" (in Japanese). gendai.media. Retrieved April 16, 2026.
- ↑ "大米龍雲" (in Japanese). www.madisons.jp. Retrieved April 16, 2026.
- ↑ "戸棚から72歳女性の遺体、性的暴行の痕跡も…検事に「あれほど大胆な悪漢は見たことがない」と言わしめた"連続尼僧殺し"のはじまり" (in Japanese). bunshun.jp. Retrieved June 30, 2026.
- ↑ "「刑事の2～3人殺すぐらいはなんともない」72歳と25歳の女性らを暴行し殺害、日本を戦慄させた"連続殺人犯"が逮捕されるまで" (in Japanese). bunshun.jp. Retrieved June 30, 2026.
- ↑ "「彼が殺人鬼とは知らないまま」全国で殺人、強盗を繰り返した"凶悪犯罪者"…暴行→妻にさせられた女が語った"絶望の言葉"" (in Japanese). bunshun.jp. Retrieved June 30, 2026.
- ↑ "「クタばっちまえばどうせ見えねえ」死刑執行時の"大胆な言動"は本当だったのか…女性への暴行・殺人を繰り返し「食人鬼」と呼ばれた男の"もう一つの顔"" (in Japanese). bunshun.jp. Retrieved June 30, 2026.
- ↑ "幼女廿餘人を絞殺した 身の毛もよだつ殺人鬼 手ぬるい捜査だと 警視廳で係官を嘲笑" (in Japanese). bunshun.jp. Retrieved July 2, 2026.
- ↑ "「殺すか殺さないかの分かれ目は、相手が自分の言うままになって楽しませてくれるかどうか」空前の連続少女暴行殺人"吹上佐太郎事件"とは" (in Japanese). bunshun.jp. Retrieved April 16, 2026.
- ↑ "東京の海辺で目とノドをえぐられた若い女性の惨殺死体…浮上した"前科4犯の男"と"疑惑の自供"――大正事件史". bunshun.jp. Retrieved April 16, 2026.
- ↑ "新宿駅で見つかった「7体の腐った赤ちゃん」…笑顔で子どもを引き取る元警察官が次々殺していた" (in Japanese). gendai.media. Retrieved July 2, 2026.
- ↑ "The Serial Killer in Occupied Japan (1945-52)". eap.princeton.edu. Retrieved April 16, 2026.
- ↑ "芸妓や家族までメッタ刺し……約80年前に起こった「浜松連続殺人事件」犯人は、意外すぎる人物だった" (in Japanese). bunshun.jp. Retrieved April 16, 2026.
- ↑ "「私はろう者ですから、許してくれるかも」なぜ、19歳の青年は"狂気の連続殺人犯"になってしまったのか" (in Japanese). bunshun.jp. Retrieved April 16, 2026.
- 1 2 "自転車のミカン箱で発見された乳児の遺体がすべてのはじまりだった…「鬼夫婦」の産院で何が起きたのか" (in Japanese). bunshun.jp. Retrieved April 16, 2026.
- ↑ "女性や子どもばかり7人を殺害…日本で初めて二度「死刑判決」を受けた男の歪んだ快楽" (in Japanese). gendai.media. Retrieved April 16, 2026.
- ↑ Asahi Shimbun (1 June 1985) Tokyo morning newspaper, p. 23 "Robbery murderer, execution of Furutani at Osaka Detention Center"
- ↑ "「死刑にしないでね」カネと"自分"を報酬に殺人依頼…3人の命を奪った毒婦は女性の死刑執行「戦後第1号」" (in Japanese). news.yahoo.co.jp. Retrieved March 21, 2026.[dead link]
- ↑ "「写真？ どうぞ」疑惑の女は取材に笑顔で…ホテル経営者夫妻はなぜ相次いで"消えた"？ 女性初の死刑執行「日本閣事件」の全貌" (in Japanese). bunshun.jp. Retrieved April 16, 2026.
- ↑ "夫の愛人2人と同居、女4人を毒殺未遂――"語られない"女性死刑囚・杉村サダメ" (in Japanese). cyzowoman.jp. Retrieved April 16, 2026.
- ↑ "東京・福岡・仙台の死刑囚3人に死刑執行 法務省発表" [Announcement for the executions of three death row inmates in Tokyo, Fukuoka, and Sendai by the Ministry of Justice]. The Asahi Shimbun (in Japanese). September 10, 1999.
- ↑ "戦慄…恐怖の客人!? 家族の決断" (in Japanese). www.fujitv.co.jp. Retrieved April 16, 2026.
- ↑ "プレイバック「昭和100年」は「昭和54年」一億総中流時代が定着、大阪で梅川事件" (in Japanese). www.sankei.com. Retrieved April 16, 2026.
- ↑ "混血少年連続殺人事件" (in Japanese). www.maroon.dti.ne.jp. Retrieved April 16, 2026.
- ↑ "中山死刑囚が病死 仮出所中に2人殺害" (in Japanese). www.nikkei.com. Retrieved April 16, 2026.
- ↑ Fukushima, Akira (June 15, 2023). 從科學剖析犯罪行為，深入犯罪者的內心世界 [Analyzing Criminal Behavior Through Science, Delving into the Inner World of Offenders]. Morning Star Publishing. p. 56. ISBN 9786263205130.
- ↑ "最凶のシリアルキラーが銃を持ってやってくる…勝田清孝事件（1983年）【TBSアーカイブ秘録】" (in Japanese). newsdig.tbs.co.jp. Retrieved April 16, 2026.
- ↑ "2人の死刑執行 4人殺害の西川死刑囚は再審請求中" (in Japanese). www.nikkei.com. Retrieved April 16, 2026.
- ↑ "日本最老死刑犯老死狱中 已90高龄坐牢近40年(图)" (in Chinese). www.sohu.com. Retrieved April 16, 2026.
- 1 2 "言えなかった「バカヤロー」 弟殺した死刑囚と向き合った「80分」" (in Japanese). www.asahi.com. Retrieved April 16, 2026.
- ↑ "監禁や虐待でいくつもの家族を隷属させた「尼崎事件」の悪夢…元高校球児はなぜ「角田美代子」の"暴力装置"となったのか" (in Japanese). www.dailyshincho.jp. Retrieved April 16, 2026.
- ↑ "2人の死刑執行 女性5人殺害の鎌田死刑囚ら、15年12月以来" (in Japanese). www.nikkei.com. Retrieved April 16, 2026.
- ↑ "Japan confirms execution of cannibal killer". www.abc.net.au. Retrieved April 16, 2026.
- ↑ "Death sentence finalized for murderer of five". www.japantimes.co.jp. Retrieved April 16, 2026.
- 1 2 Fukabue, Yoshinari (2014) 罠 : 埼玉愛犬家殺人事件は日本犯罪史上最大級の大量殺人だった!.
- 1 2 3 4 "2人の死刑執行 法相「しっかり調査した」" (in Japanese). www.nikkei.com. Retrieved April 16, 2026.
- 1 2 3 4 『Fukushima Minpo』11 May 2002
- ↑ "Four prisoners executed in Japan". BBC. December 25, 2006. Retrieved April 14, 2008.
- 1 2 "〈死体の解体も〉顔面に平手打ちや身体に通電…7人が殺害された「北九州監禁連続殺人事件」の犯行現場となったマンションのその後" (in Japanese). bunshun.jp. Retrieved April 16, 2026.
- ↑ "碧南夫婦強殺で死刑確定 最高裁 闇サイト事件の堀被告" [Death sentence for defendant in the murder of a Hekinan couple upheld by Supreme Court]. Chunichi Shimbun (in Japanese). August 10, 2019.
- ↑ 『Mainichi Shimbun』9 October 2004
- ↑ "ヤクザ一家の杜撰な殺人計画 大牟田4人殺害事件" (in Japanese). Retrieved December 8, 2025.
- ↑ "Man to hang for sisters' murders". The Japan Times. December 14, 2006. Retrieved November 24, 2019.
- ↑ "Execution of four people, announced by the Ministry of Justice". AFP BB News (in Japanese). January 29, 2003.
- ↑ "死刑囚２人の刑執行を発表 神奈川連続主婦殺害、福岡３女性殺害 令和初（写真・画像 1/1）" (in Japanese). www.sankei.com. Retrieved April 16, 2026.
- ↑ "Japan 'black widow' loses final appeal against death sentence". www.bbc.com. Retrieved April 16, 2026.
- ↑ "Man gets death for murdering suicidal trio". The Japan Times. March 29, 2007. Retrieved February 23, 2008.
- ↑ "尼崎連続変死 李被告３件の殺人罪など争う方針" (in Japanese). www.kobe-np.co.jp. Retrieved April 16, 2026.
- ↑ "李被告の無期確定へ" (in Japanese). mainichi.jp. Retrieved April 16, 2026.
- 1 2 "尼崎変死、角田美元被告の親族ら4人を再逮捕 傷害致死容疑" (in Japanese). www.nikkei.com. Retrieved April 16, 2026.
- ↑ "角田元被告の義妹らに懲役21年 尼崎変死で神戸地裁判決" (in Japanese). www.nikkei.com. Retrieved April 16, 2026.
- 1 2 3 "尼崎連続変死 三枝子被告ら３人に懲役２１年 神戸地裁判決" (in Japanese). www.kobe-np.co.jp. Retrieved April 16, 2026.
- ↑ "角田美代子容疑者ら8人起訴 ドラム缶遺体遺棄" (in Japanese). November 27, 2012. Retrieved November 9, 2025.
- ↑ "尼崎連続変死 内縁夫２審も懲役２１年判決" (in Japanese). May 25, 2016. Retrieved November 9, 2025.
- ↑ "尼崎連続変死公判 鄭頼太郎被告一問一答「おちょくってるんちゃうか」" (in Japanese). Retrieved November 9, 2025.
- ↑ "検察側「閉じ込め殺した」弁護側「殺意はなかった」…仲島さん、安藤さん事件の審理終了" (in Japanese). July 10, 2015. Retrieved November 9, 2025.
- ↑ "尼崎連続変死公判 瑠衣被告に懲役２３年判決" (in Japanese). www.kobe-np.co.jp. Retrieved April 16, 2026.
- ↑ "Japan's 'Black Widow' serial killer loses death sentence appeal". www.cnn.com. Retrieved April 16, 2026.
- ↑ "「私がやった」 否認の死刑囚が手紙で告白 川崎老人ホーム転落死". www.asahi.com. Retrieved April 16, 2026.
- ↑ "座間9人遺体事件の「モンスター」を生んだ歌舞伎町の闇". www.nippon.com. Retrieved April 16, 2026.
- ↑ "【詳報】「笑顔が忘れられない」男女5人自殺ほう助事件 被告の男が語った動機 福島". May 12, 2025. Retrieved May 21, 2026.
- 1 2 "本当に無罪だったのか １１月７日" (in Japanese). www.sankei.com. Retrieved April 16, 2026.
- ↑ "Onsdagskvæleren" (in Danish). japanoholic.dk. Retrieved April 16, 2026.
- ↑ "Parents of five murdered girls still pushing for resolution" (in Japanese). japantoday.com. Retrieved April 16, 2026.
- ↑ "絞殺、覚醒剤、ラブホテル…新宿歌舞伎町の"未解決"連続殺人 犯行に「多数の共通点」も、犯人は夜の闇に消えたまま40年以上" (in Japanese). news.yahoo.co.jp. Retrieved April 16, 2026.[dead link]
- ↑ "電話ボックスに置かれた1本のコーラから全ては始まった…「青酸コーラ連続殺人事件(1977年)」【TBSアーカイブ秘録】" (in Japanese). newsdig.tbs.co.jp. Retrieved April 16, 2026.
- ↑ "猟奇「少年殺害臀肉切り取り事件」（中）町内で有名漢詩人、薬店主が相次ぎ死去 金遣いが荒くなった男に嫌疑" (in Japanese). www.sankei.com. Retrieved April 16, 2026.
- ↑ "Woman, 54, held after five found dead in Japanese flat". www.theguardian.com. Retrieved May 5, 2026.
- ↑ 宅間守 精神鑑定書 精神医療と刑事司法のはざまで 150 page
- ↑ Shimizu, Masaru (1989). "アルコール常用者にみられたアセトアミノフェンによる急性肝不全の1例" [A case of acetaminophen-inducted acute liver failure in an alcoholic]. Liver (in Japanese). 30 (6): 690–694 – via J-Stage.
- ↑ "「ルーシー・ブラックマン事件」の織原城二受刑者が獄中から裁判を起こしていた…！提訴した「驚きの相手」" (in Japanese). gendai.media. Retrieved April 16, 2026.
- ↑ "ルーシーさん事件、織原被告の無期確定へ 最高裁が上告棄却" (in Japanese). www.nikkei.com. Retrieved April 16, 2026.
- ↑ "「私、怖いですか？」ゴミ屋敷に住む女性の周辺で6人が"不審死"…『鳥取連続不審死事件』犯人・上田美由紀が刑務所で見せた素顔" (in Japanese). bunshun.jp. Retrieved April 16, 2026.
- ↑ "懲役１７年 角田元被告次男、優太郎被告の判決確定" (in Japanese). www.sankei.com. Retrieved April 16, 2026.
- ↑ "尼崎連続変死事件 優太郎被告に懲役１７年判決 地裁" (in Japanese). www.kobe-np.co.jp. Retrieved April 16, 2026.
- ↑ "尼崎連続変死 仲島被告、２９日から裁判員裁判" (in Japanese). www.kobe-np.co.jp. Retrieved April 16, 2026.
- ↑ "尼崎連続変死事件 康司被告に懲役１５年判決 地裁" (in Japanese). www.kobe-np.co.jp. Retrieved April 16, 2026.
- ↑ "《不審死48人「大口病院点滴殺人事件」》「20人くらい殺った」"白衣の堕天使"久保木被告が女性取調官に"完落ち"して語った凶行" (in Japanese). bunshun.jp. Retrieved April 16, 2026.
- 1 2 ""残酷な武将"は本当だったのか？松平信康と豊臣秀次に流された恐ろしい噂の真相とは？" (in Japanese). news.yahoo.co.jp. Retrieved May 5, 2026.
- 1 2 "豊臣秀吉の養子・秀次は、本当に凡庸・無能で残忍な人物だったのだろうか" (in Japanese). news.yahoo.co.jp. Retrieved May 5, 2026.
- ↑ "豊臣秀次は黒田孝高の諌言を聞き入れなかったので、悲惨な最期を迎えたのか？" (in Japanese). news.yahoo.co.jp. Retrieved May 5, 2026.
- ↑ "豊臣秀次は、なぜ豊臣秀吉から切腹を命じられたのか。その諸説を検討する" (in Japanese). news.yahoo.co.jp. Retrieved May 5, 2026.
- ↑ "小野秀雄コレクション再考" (in Japanese). Archived from the original on December 23, 2003. Retrieved June 30, 2026.
- ↑ "「この男を殺せば好きな役者と一緒になれる…」"絶世の美女"をさらし首に追い込んだ悪念" (in Japanese). January 15, 2023. Retrieved June 30, 2026.
- ↑ "「あの人はどうしましたか？」恋人との障害になる「主」を毒殺…"絶世の美女"が漏らした「さらし首」になる直前の言葉" (in Japanese). January 15, 2023. Retrieved June 30, 2026.
- ↑ "高橋お伝" (in Japanese). November 13, 2025. Retrieved June 30, 2026.
- ↑ "１０４－０９８" (in Japanese). July 7, 2006. Retrieved June 30, 2026.
- ↑ The Asahi Shinbun August 20, 1920
- ↑ "Man who eluded conviction gets life in prison". www.japantimes.co.jp. Retrieved March 21, 2026.
- ↑ "宮城・仙台北陵クリニック・筋弛緩剤冤罪事件" (in Japanese). www.saishin-enzai.net. Retrieved April 16, 2026.