"Police, how did you know that there was an extramarital affair between Mrs. Asuda and Shuntaro Kobayashi?"

Miki raised her hand and moved her sore shoulders and neck, and raised her eyes to see Lin Shuichi sitting by the window, enjoying the scenery of the Imperial Palace across the road and enjoying the afternoon coffee time. Immediately asked Lin Xiuyi curiously for advice.

"Hey, I wasn't very sure at the time, but it was reasonable to think that Tetsuji Fujiki should be Shuntaro Kobayashi's own son, and it should be reasonable for Shuntaro Kobayashi to let him enter Kaisei School for this reason. ”

"But why would President Asuda's son be treated like this? If it was just a simple bribe, Shuntaro Kobayashi, who has a generous retirement pension, would not have given the other party the green light for a little money. Thinking about the reason why Shuntaro Kobayashi left the Ministry of Education, Culture, Sports, and Culture in the first place, I have reason to believe that perhaps it was the bribery of the relationship between men and women that would make it easier for the Asuda family. As it turns out, though, my speculation should be correct. ”

Lin Xiuyi patiently explained for Miki.

"So can we now conclude that it was Asuda who killed Kobayashi Shuntaro?"

According to Lin Xiuyi's train of thought, Miki easily overturned this conclusion.

According to the current evidence, Asuda does have a sufficient reason to kill Kobayashi Shuntaro, after all, his wife has an affair with another man, and as a husband, it is normal to have murderous intentions. ”

"However, there is one thing that I still care about! That is why the way he killed Shuntaro Kobayashi is so similar to a suicide case in Hokkaido, thousands of miles away. If Kono-kun hadn't taken the initiative to find me and personally told me about the strangeness of Professor Noguchi's suicide case, I am afraid that the police would not have considered the two cases that were separated by a month and a half and were handled by police departments in different regions. ”

Therefore, if we consider it along these lines, the murder of Professor Noguchi and the murder of Shuntaro Kobayashi should have been premeditated. Since it was premeditated, and it successfully deceived the police investigation at the beginning stage. Then the other party should also think that sooner or later, the police will suspect them. ”

After listening to Lin Xiuyi's analysis, Miki nodded in agreement. However, now that President Asuda's motive for killing Kobayashi Shuntaro has been discovered, it is now necessary to crack his alibi if President Asuda wants to confess.

"But, police department, what do you think about the alibi? You know, the object of our initial suspicion was Fujiki Minato, and Fujiki Mina was sexually assaulted by Kobayashi Shuntaro, and because of this, he completely changed the trajectory of his originally smooth sailing life. In this way, Minato Fujiki also has a sufficient motive to kill Shuntaro Kobayashi. Moreover, during the time when Shuntaro Kobayashi was killed, President Asuda and Mina Fujiki went to Hayakawa Town together to participate in the bidding event for Keiunkan. Isn't it suspicious that two suspects who also have the same motive to kill can provide each other with alibi?"

Miki told Lin Xiuyi again about another doubt in her heart. Although it was discovered that Asuda also had a motive to kill Kobayashi Shuntaro, it was too strange that two suspects who were also suspected of murder provided each other with alibi.

"In this regard, I think that since the other side has made such an arrangement, they should not be afraid of our investigation against them. After all, attending a business event far away in Hayakawa Town inevitably requires showing up in front of a group of unrelated people. So, I personally think that their alibi should be true. At the very least, that's what our previous investigation of Minato Fujiki has proven. But if you think about the murder of Professor Noguchi in Hokkaido, I think it's okay to think about it?"

"The person who killed Professor Noguchi may be Minato Fujiki, or President Asuda. Because although these two people had an alibi when Kobayashi Shuntaro was killed, they may not be able to provide enough alibi when Professor Noguchi was killed. Moreover, the murder of Professor Noguchi and the murder of Shuntaro Kobayashi are strikingly similar in terms of basic details. So I think that maybe the killer of Shuntaro Kobayashi was probably Minato Fujiki or another associate of President Asuda......"

"Police, do you mean...... These two cases were an elaborate quid quid killing?"

Miki couldn't believe the conclusion she had reached, two murders thousands of miles apart, strikingly similar details of the crime, and the suspect who really had a criminal motive at the time of the victim's murder had an alibi that was difficult to crack, and after thinking of the above details, the seemingly absurd conclusion of cunning murder didn't seem so difficult to accept.

"Hey, it's really likely to be an exchange killing, because that's the only way to crack the alibi presented by the suspect. However, if we reason according to this hypothesis, it means that the murderer of Kobayashi Shuntaro is actually someone else, and the murderer of Professor Noguchi is likely to be one of Fujiki Minato and Professor Asuda. Personally, though, I'm more likely to have Mr. Asuta killed Professor Noguchi. Because Professor Noguchi is likely to be the gentle A-kun described in "Forbidden Love......"

"But the police department, if you reason according to this hypothesis, then who is the suspect who really killed Kobayashi Shuntaro?"

"That's what we need to look into next. However, I think that the real suspect should meet the following characteristics, first of all, he must have some irreconcilable contradiction with Professor Noguchi. Because Professor Noguchi's case happened in the past, it means that it is very likely that the suspect, who has not yet been exposed, first proposed the plan to exchange killings. ”

"Secondly, this person must be someone that President Asuda trusts very much. Because, such a high-risk thing as exchanging killings still requires an extremely reliable companion to achieve. So, I think it's probably necessary to investigate the social relationship between President Asuda and Mina Fujiki in Hokkaido......"