In 2019, a 26-year-old suspect in Saitama Prefecture, who was arrested on suspicion of murdering a couple in a case where four family members were killed in a house in Sakai Town, Ibaraki Prefecture, purchased a tear spray on the Internet before the incident. I found out from an interview with the investigators that I was doing it.

The injured second daughter was also sprayed with something like a tear spray, and police are investigating the details.

In September 2019, a company employee Mitsunori Kobayashi (48 at the time) and his wife Miwa (50 at the time), a part-time employee, were stabbed and killed in a house in Sakai Town, Ibaraki Prefecture. The only 13-year-old second daughter was also seriously injured.



In this case, police arrested a 26-year-old unemployed person in Misato City, Saitama Prefecture, on suspicion of murdering a couple on the 7th of this month.



Subsequent investigations revealed that Okaba had purchased tear spray on the Internet before the incident, according to an interview with an investigative official.



The injured second daughter was also covered with something like a tear spray, and police are investigating whether the tear spray purchased by Okaba was used in the case.



Police have not disclosed their approval or disapproval as it interferes with the investigation.