A 26-year-old man arrested for murdering a couple with a knife in a case where four family members were killed in a house in Sakai-cho, Ibaraki Prefecture, was seriously injured by attacking two children with a knife. According to an interview with an investigative official, it was decided on the 29th that he would be re-arrested on suspicion of attempted murder.
In September, an office worker Mitsunori Kobayashi (48 at the time) and his wife Miwa (50 at the time), a part-time employee, were stabbed and killed by a knife at a house in Sakai Town, Ibaraki Prefecture. The second daughter was also seriously injured, and police arrested a 26-year-old unemployed person living in Misato City, Saitama Prefecture, on suspicion of murdering the couple this month.
Subsequent investigations revealed that Okaba was suspected of having severely injured the eldest son of a junior high school student with a knife, and also sprayed tears on his second daughter, who was an elementary school student, causing minor injuries. On the 29th, an interview with an investigative official revealed that he had decided to re-arrest on suspicion of attempted murder and injury.
The police are investigating the details of the incident.
According to investigators, Okanaiwa has denied allegations of murdering the couple in previous investigations.