Tsutomu Miyazaki

The Little Girl Murderer

“I felt all alone… Whenever I saw a little girl playing on her own, it was almost like seeing myself.”

Tsutomu Miyazaki, a.k.a. ‘The Otaku Murderer’ or ‘The Little Girl Murderer’, was a Japanese necrophilic serial killer. He was also referred to as ‘The Rat Man’ and ‘Dracula’.


Tsutomu Miyazaki


The Otaku Murderer
The Little Girl Murderer
Rat Man



Birth Date

August 21st, 1962

Place of Birth

Itsukaichi, Tokyo, Japan

Date of Death

June 17th, 2008 (executed)




Serial Killer
Cannibal (once)


Making silent phone calls to victims’ families

Modus Operandi


No. of Victims



Miyazaki was a premature baby which resulted in him being born with a physical abnormality that impacted both his appearance and his functionality: his hands were fused to his forearms, making it impossible for him to bend or rotate his wrists.


Miyazaki was frequently bullied by other children about his hands, which made him extremely self-conscious and unhappy and even his own sisters found his appearance off-putting, causing him to have a particularly difficult childhood.


(What on earth is is being blurred out?)

Despite his problems with socialising, Miyazaki was initially one of the best students in his high school class, until his grades began dropping. Eventually this resulted in him not receiving an admission to Meiji University, a private and prestigious university in Tokyo. He later attended a ‘not so good’ college and began studying to become a photo technician, leaving his intentions of becoming a teacher behind.

Random fun fact: Miyazaki soon developed an inferiority complex due to the size of his penis and his inability to socialise with women; he then began a new hobby where he would take pictures of female tennis players, so he could use them to masturbate.

In the mid 80s, Miyazaki moved back into his parents’ house and shared a room with his older sister. His family was highly influential in their town, his father owned a newspaper, but Miyazaki had no desire to take over his job. He would later claim that it was during this period that he began to consider suicide.

Miyazaki reportedly disliked everyone in his family – except for his grandfather, who died in May 1988; his death worsened Miyazaki’s depression and as a way to “retain something from him”, Miyazaki ate part of his grandfather’s ashes.


Weeks later, Miyazaki’s sister caught him spying on her while she was showering and when she confronted him, he attacked her and his mother after having an argument with her about it. Miyazaki was a collector of pornographic anime, adult magazines, violent films and child porn, gathering a total of 5763 videotapes.

Murders, Arrest and Execution

On August 22nd, 1988, just one day after his birthday, Miyazaki abducted Mari Konno, a four-year-old girl, while she was playing at a friend’s house and drove her to a wooded area.

The two sat in the car under a bridge for several minutes before he strangled her to death and engaged in acts of necrophilia with her corpse. He then left her in the hills near his home, taking her clothes with him.

Miyazaki did eventually return to her however to remove body parts and some of her teeth. (As you do 🤷🏻‍♀️) Miyazaki turned Konno’s bones into powder and placed them in a box, alongside her teeth, pictures of her clothes and a postcard containing the words “Mari. Cremated. Bones. Investigate. Prove.”, which he then sent to her family.

Miyazaki kept her hands and feet in his apartment.

On October 3rd, Miyazaki spotted Masami Yoshizawa on a rural road, offering her a ride and taking her to the same place where he had killed Konno. He repeated the same process of strangling her, having sex with her dead body and taking her clothes.

Just one month later on December 12th, Miyazaki was returning from a friend’s house when he abducted his third victim, Erika Nanba. He drove her to a car park in Naguri, Saitama, forced her to undress in the back seat of his car and then took pictures of her naked body before finally killing her. He disposed of the girl’s clothes in a wooded area and left the body in the adjoining car park.

Miyazaki then sent a postcard to her family, using words cut out of magazines. It read: “Erika. Cold. Cough. Throat. Rest. Death.”

On June 6, 1989, Miyazaki led 5 year old Ayako Nomoto into his car and then took her to his apartment. After taking pictures of her, he killed her and spent the next two days engaging in sexual acts with the corpse, taking pictures of it in various positions, and filming it.

When her body began decomposing, Miyazaki dismembered it. He disposed of the head in a cemetery and the torso in the hills, but he would later retrieve the body parts, keeping them in his closet. Miyazaki also drank blood from the girl’s hands and ate part of them.

On July 23, Miyazaki attempted to insert a zoom lens into the vagina of a school girl in a park near her home but was stopped by her father. Miyazaki fled from the area, naked and on foot, but was arrested when he later returned to retrieve his car.

A search of Miyazaki’s two-room bungalow produced the body parts he had hid as well as 5,763 videotapes, some containing anime and slasher films (later used as reasoning for his crimes). Interspersed among them was video footage and pictures of his victims. He was also reported to be a fan of horror films of which he had a collection. Miyazaki, who retained a perpetually calm and collected demeanour during his trial, appeared indifferent to his capture.

The trial began on March 30th, 1990. Often talking nonsensically, Miyazaki blamed his actions on “Rat Man”, his alter ago and even spent time during the trial drawing “Rat Man” in cartoon form. The Tokyo District Court judged him still aware of the magnitude and consequences of his crimes and therefore accountable – so he was fit to stand trial.

The entire ordeal was far too much for Miyazaki’s father and he refused to pay for his legal defence and even committed suicide in 1994.

He was sentenced to death on April 14th, 1997. His death sentence was upheld by both the Tokyo High Court, on June 28th, 2001, and the Supreme Court of Justice on January 17, 2006.

 While awaiting to be executed, child killer Kaobu Kobayashi admitted during his trial that he wanted to be “the next Tsutomu Miyazaki or Mamoru Takuma“, which enraged him.

Miyazaki stated, “I won’t allow him to call himself ‘the second Tsutomu Miyazaki’ when he hasn’t even undergone a psychiatric examination.”

Gosh, love yourself much Miyazaki?

Minister of Justice Kunio Hatoyama signed his death warrant and Miyazaki was hanged on June 17th, 2008.


Mari Konno (今野真理 Konno Mari): Four years old
Masami Yoshizawa (吉沢正美 Yoshizawa Masami): Seven years old

Erika Nanba (難波絵梨香 Nanba Erika): Four years old
Ayako Nomoto (野本綾子 Nomoto Ayako): Five years old

Miyazaki’s Apartment
The video tapes found in his posession

Modus Operandi

Miyazaki targeted girls aged between four and seven-years old. He would drive around Saitama and Tokyo and abduct the first suitable girl on sight, either by manipulating her or forcing her into his car. He would then take the victim to a secluded location and kill her by strangulation.

As a signature, Miyazaki would make silent phone calls to his victims’ families; the phones would ring for at least 20 minutes if they did not answer it. Some of the families received postcards with letters cut from magazines to form cryptic words related to the child’s murder. After killing his victims, he engaged in acts of necrophilia with their corpses and on one occasion, cannibalised a body part. Miyazaki would keep his victims’ clothing and body parts as trophies, which he hid in his closet.


Psychologists concluded that he was sane, but suffered from both dissociative identity disorder and a severe case of schizophrenia, though other psychologists suggested that he had no apparent disorder.

Dr. Susuma Oda, a psychologist at Tsukuba University, described his serial murders as “thrill killings of a rare kind”, Oda believed that he thought of himself as important due to his ‘deformities’ and ‘small penis’, and saw his victims as nothing more than characters from his comic book-life. Professor and psychotherapist Akira Ishii stated that he was a pedophile first and murderer second, as “Killing was an extension of his interest in little girls, a way of possessing them.”


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