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Yasuko, the staircase that leads to the loft with Niina’s bed and the landing on the first floor where Mikio had fallen (bottom right)
In December 2000, Mikio Miyazawa in Setagaya-ku, Tokyo = then (44) = four family members were killed in their home, and his wife Yasuko = equal (41) = and his eldest daughter Ina = equal (8) . According to an interview with an investigating officer, the wall above the loft where he was attacked was found to have a scar when the criminal brandished the Yanagi knife from the weapon. The two are believed to have died in their sleep without resistance. “We can see the rarity of the criminal who relentlessly attacked girls and young women,” said a lead investigator for the Police Agency. (Keigo Okumura, Yuri Amada)
◆ Traces near the top of the bed
From the helicopter of the central office “Ozuru” at the site of the murder case of the Setagaya family, which has been 20 years since the outbreak.
According to investigators, the loft had a double-wide bed for Niina to sleep with Yasuko. The Yanagi blade knife (21 cm wide at the blade) was used with the tip broken and there were traces of perforations near the top of the bed. On the loft floor, the central part of the blade, which appears to have been further broken during the crime, had fallen off.
This used knife was found in the second floor kitchen.
The knives are “Sekison Roku Ginju”, which was made in Fukui prefecture in June 2000. It is known to have been sold in 46 stores, such as major supermarkets in the Kanto area, for around 3,500 yen.
At the time of the incident, the bodies of the two were found lying under the stairs leading to the loft. It appears he fell off the ladder when he was attacked by a rare stab wound in the loft.
◆ Abnormal behavior after killing
Bunk where Rei slept on the bottom bunk.
The time of the crime is from around 11:00 p.m. on December 30 until the early morning of December 31 of the same year. The criminal climbed up the pipe on the exterior wall of the first floor and invaded through the bathroom window on the mezzanine. After suffocating the eldest son Rei-chan (6) on the lower level of the bunk in the children’s room on the mezzanine, Mikio was stabbed to death on the first floor with a Yanagi knife. After that, it is quite possible that Yasuko and two other people were stabbed to death with the same knife.
The cause of death for the three people besides Rei-chan was blood loss due to a stab in the neck. It seems like only Rei-chan choked on pressing her face against the futon from behind.
The criminal remained on the scene after the murder, squeezed the ice cream into the refrigerator without using a spoon, ate it, and searched the home page of the theater company on Mikio’s computer. “Abnormal behavior” was also observed, such as sifting through the contents of drawers such as the study room from one end and putting cut documents with empty wallets and scissors into a bath filled with water.
◆ Lots of evidence, neglecting the initial investigation
A replica of the scarf and fanny pack left at the scene of the Setagaya family murder case (front)
Many leftover items, such as Type A blood stains and the criminal’s fingerprints, jumpers and scarves that had been removed, were left at the scene. The type of DNA that supports modern criminal investigations was also identified from bloodstains several years later, and the fact that much evidence remained is said to have put the investigation “off guard.”
An investigative executive said: “Fingerprints have been detected at the scene. If even one person takes as many fingerprints as possible and matches them, the case will be resolved immediately.” Talk about regrets.
Since approximately last year, the Head of Investigation has re-investigated the criminal’s clothing and fanny pack distributors who were left at the scene. As a place of purchase, we are expanding the research to the western part of Tokyo, such as around Chofu Station on the Keio Line and Seiseki Sakuragaoka Station.
Setagaya family killing four peopleOn the morning of December 31, 2000, Miyazawa, his wife Yasuko, their eldest daughter, Ina, and their eldest son, Rei, were found dead in the home of Mikio Miyazawa, an office worker in Kamiso Shitani, Setagaya-ku. , Tokyo. The Investigation Headquarters of the Narujo Police Station of the Police Agency has admitted a total of about 280,000 people and continues the investigation as a case of robbery for murder. The offender is believed to be a relatively young type A male with a height of about 170 cm. Escape by leaving around 10 items like the Yanagi knife weapon “Sekison Rokuginju” and the black sweater made by leading casual wear manufacturer “Unichrome” in the site’s second floor living room. We checked around 50 million fingerprints collected and around 1 million or more types of DNA, but they didn’t match. The information is provided to the Research Headquarters = Den 03 (3482) 3829 =.
