Regardless of the black man in the corner who was about to shrink into a ball, Mizumatsu began to investigate the case in a regular order.

The first step is to understand the situation. According to the confession of the first discoverer, Kogoro Mouri, the deceased was called Ichimura Tung, who was a diplomat, 54 years old.

On the same day, the deceased's wife, Koe Ikemura, came to Kogoro Mouri's detective office and commissioned an investigation work - the specific investigation content of Kogoro Mouri was unwilling to disclose it. It happened that the high school student Detective Watson, who came from Osaka, came to Shinichi Kudo from Kudo, visited the Maori detective office, and so they came to the deceased's house together.

At the deceased's house, when they were about to visit the deceased, they found that the study where the deceased was locked. After knocking on the door, Mrs. Gongjiang from Chicun opened the door with the key.

At the beginning, they did not notice the inappropriate situation and thought the deceased was just asleep. However, when Mrs. Gongjiang of Chimura tried to wake up the deceased, she found that the deceased was dead. So she called the police and called Mizumatsu and others. In addition to the above mentioned people, the deceased's father, the deceased's son and daughter-in-law were also included in the entire house.

The Forensic Department and the Autopsy Department quickly came up with the examination results: the deceased died of toxins, and a pinhole was found on the deceased's neck. A high concentration of toxin was found in the muscle tissue around the pinhole, which was obviously the pinhole for injecting toxins.

And a fine needle was found on the ground, which contained the same toxins and identified the blood of the deceased. It was obviously a weapon.

Finally, the deceased's stomach was found in the stomach of the deceased. According to Mrs. Gongjiang of Chicun, the deceased did have the habit of using sleeping pills.

There is only this information collection for the time being, because I still have no clue, so I had to further expand the search scope to the entire house.

Mizumatsu recorded two suspicious points in the police manual:

First, the scene belongs to the secret room. Behind this post, Shuijianyue draws three arrows, pointing to the three words "suicide", "forge" and "method". "forge" means that the scene is actually not a secret room, and it is mistaken for a secret room when it is misled by the murderer; "method" means that the murderer uses some method to create a secret room from outside.

Second, the poison needle is on the scene. Why did the murderer not take the poison needle away after killing the person but stay on the scene? Shui Jianyue drew three more arrows, pointing to the three words "suicide", "can't" and "scene". "can't" means that for some reason, the murderer cannot take away the weapon after killing someone, so he had to hope that the police would not discover it. For example, the deceased's father was dizzy. If he fell the needle on the ground by mistake after killing the person, he would probably not be able to see it or find it. "scene" means that the murderer actually killed someone in full view of the crowd, so he did not have the chance to bring the weapon to the scene.

Next, Mizumatsu connected the suicides among the two suspicious points, and wrote the name of the deceased Chimura in the middle, then connected the "method" and "cannot", wrote the name of the deceased's father in the middle, and finally connected the "forge" and "once" and "on the scene", and wrote the name of the Ichimura Gongjiang in the middle.

Considering that the deceased had sleeping pills in his stomach, Mizumatsu cut off the "suicide" and Chicun movement.

However, between the father of the deceased and the wife of the deceased, Mizumatsu had no decisive inference.

"Police Department, please check your personal belongings?" Fujiwara Sakagi saw Mizumama's embarrassment and suggested.
Chapter completed!