Stay away from Conan.

Because at his daughter's wedding ceremony during the day, due to the groom Toshihiko Takasugi, the memory of his participation in the hunt for the serial murderer 20 years ago came to Matsumoto Kiyonaga's mind again.

Therefore, Matsumoto Kiyonaga couldn't help but feel a headache because his daughter finally chose to be with Takasugi Toshihiko. After the wedding ceremony was ruined, he returned to the Metropolitan Police Department and began to take out the files from that year. Checking out the details of the unsolved serial murder case, Matsumoto Kiyonaga looked solemn as he faintly touched the vertical scar on his left eye. It seemed that the wound that had long since healed began to hurt again today. Got——

20 years...

There has been no news about the serial murderer who killed two people 20 years ago and another person 15 years ago.

And even based on the prosecution period for the incident 15 years ago, there are only a few months until the end of the prosecution period.

Even if nothing today reminds me of this incident, when the prosecution period is about to end, I still won't be able to let go of this incident, and I will still have to take advantage of the last opportunity to try to find that guy out... …

But, it’s been so many years.

Since that guy committed the last incident 15 years ago, there has been no news about him, as if he has disappeared from the world.

Therefore, the only thing we can rely on are the clues found back then...

For this reason, Matsumoto Kiyonaga, who was thinking like this, after looking at this pile of files that had been read countless times, Matsumoto Kiyonaga still couldn't see any valuable clues, and the only possible valuable clues might be... …

"Morimura..."

Recalling what his boss who died in that incident said to him before his death, Matsumoto Kiyonaga knew that perhaps by unlocking the secret, it would be possible to make substantial progress in the investigation...

but……

——"And, as far as I know, the serial murderer has not been arrested in the end, right?"

Suddenly, just when Matsumoto Kiyonaga was doubting this, he couldn't help but recall that today, he told all the truth clearly, knew the past of his daughter and Takasugi Toshihiko, and even chased the serial murderer during the incident that year. In the end, Gao Yuan told Gao Yuan everything that had not succeeded in arresting him.

Involuntarily, because he knew that this wise detective had an excellent reputation in the investigation of the First Division, Matsumoto Kiyonaga suddenly thought that Gao Yuan could make the matter between his daughter and Takasugi Toshihiko so simple today. , will you know something about the serial murderer back then?
After all, he knew that the serial murderer he was chasing had not yet been arrested.

So, thinking of this, Matsumoto Kiyonaga simply prepared to ask Gao Yuan for questioning in order to try his best to catch the serial murderer before the prosecution period ended.

In response, Matsumoto Kiyonaga ordered his police officers from the First Search Section who were familiar with Gao Yuan to invite Gao Yuan to assist in the investigation.

Therefore, after Takagi Wataru saw Gao Yuan at the entrance of the Metropolitan Police Department, he directly invited him to meet Matsumoto Kiyonaga...

……

So, back to Gaoyuan.

After hearing Matsumoto Kiyonaga asking him about the serial murderer 20 years ago, Takato was stunned for a moment, and then he basically understood Matsumoto Kiyonaga's intention——

"Chief Inspector Matsumoto is referring to the serial murderer who killed two people 20 years ago and another person 15 years ago, and who also left this scar on your left eye?" So said, Gao Yuan felt a little emotional in his heart——

Because he had previously received an invitation letter from Mitarai Rui to attend Sayuri Matsumoto's wedding ceremony, he knew that it was the plot of the original work. Before actually going there, Takato investigated some relevant information to ensure that his memory was correct.

As a result, because of this investigation, Takato discovered that the pursuit of Matsumoto Kiyonaga was caused by the car accident that led to the death of Takasugi Toshihiko's mother. The gangster Matsumoto Kiyonaga was chasing at that time was a serial murderer 20 years ago.

Moreover, this serial murderer has never been heard from again after committing another murder 15 years ago, so the serial murder at that time is still an unsolved case.

In this way, after checking this place, Gao Yuan had an impression——

The serial murder case that remains unsolved is also the plot of the original work!
So, now when Matsumoto Kiyonaga asked him about this matter, he understood what was going on——

"Yes."

After hearing that Takato could say "leaving this scar on his left eye", Matsumoto Kiyonaga knew that Takato definitely knew a lot, so he said:

"It seems that Detective Akechi knows a lot, so it will be easy for me to explain..."

As he spoke, Matsumoto Kiyonaga touched the scar on his face and said:
"The prisoner killed a total of three people. The killing method was to knock the person unconscious with an electric shock device and then kill the person with a kitchen knife. Special words were left on each deceased person. In the three incidents, there was no sign that the door had been pried open. , so the prisoner was targeted as someone known to the victim. However, we investigated the interpersonal relationships of the three deceased people and found that they had no intersection. Therefore, we did not have a scope of targeted suspects.

"The useful clue our police have now is that 20 years ago, I secretly pursued a serial murderer and came to the dock. I happened to be discovered by the prisoner. Then the prisoner pulled out a Japanese sword and chopped at me...

"As you know, the scar on my left eye was caused by the severe injury I suffered at that time. But at the same time, I also snatched the knife from the guy's hand, stabbed him back with my backhand, and gave it to the prisoner There was a straight wound on the body, so there must be a straight wound on the prisoner's body. However, because my eyes were injured at the time, I did not see clearly where the knife struck. Later we found the car the prisoner drove when he escaped. , the seat covers in the car were taken away. In addition, there was no luminol reaction in the car, so we are still not sure where the wounds on the prisoner's body are..."

As he was talking, it seemed that because he felt that Gao Yuan had a lot of knowledge about this sensational serial murder case, Matsumoto Kiyonaga skipped many situations that had been reported on the surface and directly talked about these police officers. Secret clues inside.

When he heard this, Gao Yuan suddenly smiled:
"On the back."

When Matsumoto Kiyonaga said he didn't know where the wound was, Takato gave the answer directly.

This time, Matsumoto Kiyonaga and Takagi Wataru who were present were stunned——

The problem that has troubled Manager Matsumoto and the police officers who have participated in the case investigation for more than 20 years for so long is now directly solved by Gao Yuan?

But, is that really the case?

"When most people are injured, they will habitually hold the wound with their hands. But in this case, there will definitely be blood stains on the steering wheel of the vehicle abandoned by the prisoner. Therefore, the wound is out of reach. Combined with the seat cover being taken away What can be inferred from the details of walking is that the wound was on the back!”

Simple, Gao Yuan also gave a direct explanation... (End of chapter)