"Police Department, this is the scene of the accident!"

Aizawa said as he raised a cordon in front of him for Lin Xiu.

Although the case has been treated as an accident, the scene is still the same as it was after the accident. This is a very imposing one-family building from the outside. Unfortunately, the fire after the explosion changed some of its faces.

"Police, please watch your step!"

Aizawa took the initiative to go to the front, and did not forget to remind Lin Xiuyi to pay attention to safety. To be honest, the scene was really damaged because of the fire. The blast wave of the explosion left the room in shambles. All kinds of items were scattered everywhere, and in the face of the situation in front of him, Lin Xiuyi felt that even if there was really any murder here, it would be difficult to extract useful evidence.

"Is the cause of the explosion determined?"

"It was the aging of the wiring that ignited the high concentration of combustible gas in the room, which caused the explosion, which has been confirmed by my colleagues in the forensic section. Luckily...... It's a low-density, upscale neighborhood, so it doesn't cause any serious harm to others. Moreover, Mr. Kobayashi, who was unfortunately killed, actually died of gas poisoning before the explosion. ”

Hearing Aizawa's answer, Lin Shuichi did not doubt the conclusion reached by the other party on the investigation at the scene. Both Aizawa and Hanagata used to be their subordinates, especially Aizawa, who was already an experienced veteran policeman. If he thinks it was an accident, it must be a conclusion drawn from the evidence.

"What a pity! Have you investigated the relationship between the deceased and the neighbors?"

"I have already researched that Mr. Kobayashi has always had a good reputation among the neighbors, and he also likes to participate in social activities on weekdays. Sounds like a very popular person!"

"The retired principal of an elementary school has a rich life and loves life, which sounds really enviable! But then again, is it possible that he is seriously ill, or is he at odds with someone?"

"The police mean, he was killed?"

Aizawa asked Lin Shuichi with some surprise.

"Ah...... No, I'm just asking, don't care about my opinion!"

Lin Xiuyi saw Aizawa's somewhat surprised reaction, and knew that he had asked too much. Lin Xiuyi originally felt that this case had some similarities with the case in Hokkaido, but if he really paid attention to those similarities, they were all ordinary details. For example, the deceased are all elderly people who live alone in affluence, and they all die in their own houses, and now there is one more, that is, the social relations of the deceased are quite good during their lifetime. To be honest, the silver-haired class who meet the above situation is not a minority in today's aging society.

"With such a big house, living alone, and being an elderly person, is the cleaning work done on weekdays handed over to the housekeeping company to do!"

"Hey, we've already investigated this clue. According to the work records provided by the housekeeping company, the housekeeper who was responsible for cleaning Mr. Kobayashi was not in Tokyo at the time of the accident, and the relevant evidence in this regard has been attached to the case file......"

Aizawa patiently explained to Lin Xiuyi, and at the same time, he also noticed that Lin Xiuyi seemed to have a different interest in this case, and this concern was not at all like the attitude he said when he asked about the situation of this case, "It's just a little concerned!" should be.

"Police, can I take the liberty of asking you what is the reason why you are so concerned about this case?"

Aizawa, who felt that something was wrong, suddenly grabbed Lin Xiuyi, lowered his voice and whispered to Lin Xiuyi for advice.

"You don't have to be so nervous, I'm really just here to find out about the case. Actually, I just think that the victims of this accident have some similarities with the victims of a case that I was commissioned by a friend to investigate a few days ago!

Lin Xiuyi relieved Aizawa, and just as he was about to leave, Aizawa still asked Lin Xiuyi without giving up.

"Police Department, can you ask again what kind of case you were investigating when you were commissioned by a friend?"

"Well...... Have you ever heard of the case of Professor Eiji Noguchi who committed suicide by burning charcoal, a friend of mine who worked at the Ministry of Foreign Affairs seemed to be a student of Professor Noguchi, and he was a little concerned about Professor Noguchi's motive for committing suicide, so he asked me to go to Hokkaido to investigate. I've already read the investigation transcripts left by the Hokkaido police, and there doesn't seem to be anything wrong with it. But last night, I overheard Miki talk about the case you are investigating now, so I subconsciously compared the two cases, but I didn't expect that there were really some similarities?"

"I think I've read about this case in the newspapers, and when you say that, I really want to go back and read the relevant information about that case. By the way, what else do you want to know about the police department, and I'll show you around the neighborhood and ask you about some details of this bombing by the way?"

"That...... I'm sorry, Aizawa-kun, but you've already introduced yourself in detail today, and I don't have much more to know. And...... I just have some business to go to Akasaka...... So"

"Ah, you're going to Akasaka, then let me send you, I just want to go back to our store to deal with some work matters, I can take you there!"

"This ...... Wouldn't it be too much trouble?"

"It's okay, I'm not in such a hurry, and on the way back, I want to learn more about Professor Noguchi's suicide case?"

As soon as Lin Xiu saw Aizawa's enthusiastic appearance after hearing the case, he knew that he couldn't shirk it, plus Akasaka and the store were in the same direction, and the distance was not too far, so Lin Xiuyi simply got into the car with Aizawa and left the accident scene in Meguro Ward together.

Aizawa drove out of the narrow streets, first onto Yamanote Avenue to northern Tokyo, and then drove forward for a while before heading straight for the bustling Akasaka along the Shibuya Line.

Lin Shuichi roughly told Aizawa about the suicide case of Professor Noguchi in the car, but after all, the time was in a hurry, and there was no information at hand, so he could only briefly introduce it. Just as the car had just passed near Roppongi, Lin Shuichi suddenly received a call from Reina's mobile phone.

"Brother, where are you now, are you almost in Akasaka?"

"Reina-chan, I've already arrived in Roppongi, and in a few minutes I should be near Akasaka Station!"

"Oh...... Brother, I'm just asking, Akemi-chan is with me, and she said she wants to invite you to her new home!"