One week after family murder case Investigated to identify a man with a mask in a hat September 30th, 17:31

30 days from the incident in which 4 families were killed in a house in Sakaimachi, Ibaraki Prefecture, 1 week. The police are investigating the identification of a man in a “mask and hat” that has been witnessed by children, assuming that there is a suspicion that a person with a strong murderous intention has been involved.

On the 23rd of this month, a company employee Mitsunori Kobayashi (48) and a wife employee Miwa (50) were killed in a house in Sakaimachi, Ibaraki, and the eldest son (13) and the second daughter (11) of a junior high school student were seriously injured. The incident that suffered was one week in 30 days from the outbreak.

The investigation headquarters held a meeting on the evening of 30th, so far mobilized 570 investigators and gathered about 120 information on suspicious individuals, etc. I explained that it was not.

There were no signs that the house had been affected by the investigation so far and there were multiple stabs in the couple, so the police suspected that a person with strong murderous intent was involved in the family, troubled around We are investigating whether there was.

In addition, the eldest son said, “I was attacked by a person wearing a hat and wearing a mask. It seemed like an unknown man.” We are proceeding with the identification of men through analysis.

Is it a planned crime of a person with a strong murderous intention?

Here is a summary of what we know so far.

<The crime situation>
The person who attacked the family is believed to have entered the first floor window, which was not locked, and immediately headed to the second floor.

On the second floor, Mitsunori and Miwa are sleeping in the bedroom of the couple, and the eldest son and second daughter are sleeping on the bunk beds in the children's room, and the police believe that the couple was attacked first because of the situation on the scene.

Also, when my wife, Miwa, reported 110, she screamed, “It hurts sorely,” and there was a suspicion of being cut off while reporting.

After killing Kobayashi's couple, he moved to the child's room, cut the legs of the eldest son who was under the bunk bed, and applied a tear spray to the second daughter on the upper tier. It is.

The police officer arrived at the scene more than 10 minutes after Miwa reported, and the police believe that he escaped from the house at the scene just before arrival.

<The criminal image and motive>
The injured eldest son is talking about the criminal, "I was attacked by a person wearing a hat and wearing a mask. It looked like an unknown man."

In the investigation so far, it has not been confirmed in the room after it has been colored.

Although the criminal image has not been narrowed down yet, the cause of death of Mr. Kobayashi's couple was blood loss due to piercing the chest and neck, and there were multiple stab wounds around the upper body, so the police strongly murdered the family I believe that there is a suspicion that a person with

<Investigation>
Whether it is a crime by a person who has some kind of contact with the family or a so-called “sink” incident for the purpose of money, etc., the police are investigating widely considering all possibilities.

Specifically, we listened to stories from related parties about whether there was any trouble with the family, and collected and analyzed the images of security cameras and drive recorders in a wide range of surroundings. We are confirming whether there is any.

It also means that the house in the field is examined in detail to check the footprints, and whether or not DNA is detected.