Conan: I can hear the murderer's voice

Under normal circumstances, Sato would never tolerate anyone being so unscrupulous towards a police officer.

But the police spent fifteen years failing to arrest the lawyer's murderer, and the deceased's wife fell ill after witnessing the tragic state of her husband's body.

Filled with guilt, Sato was naturally unable to defend himself.

But Lin Xuan looked like he was aiming at his prey, with excitement flashing in his eyes.

The lawyer's son's arrogance was actually a cover-up for his inner panic.

[Damn, you let a criminal psychologist get away with it for fifteen years!]

[I just got my revenge today, and the police came to my door? Why? ]

The middle-aged man with dyed yellow hair left with an angry look on his face, not even giving the police officer a chance to ask questions.

Even so, Lin Xuan still found out the identity of the copycat and the murderer.

Sato said helplessly:

"After all, he heard his father die with his own ears, and the statute of limitations was about to expire and the case had not been solved, so it's inevitable that he would resent our police."

"Actually, there is another possibility."

Lin Xuan smiled confidently and said to the policewoman beside him:

"The uncle just now is the murderer. He is afraid of exposing his flaws, so he doesn't want you to question him."

Sato's face was full of surprise:

"Then why did he kill the psychologist? There was clearly no motive."

Lin Xuan explained:

"Because the victim this time was the Whistle Man, the serial killer, the lawyer's son, who was hiding in a dark corner of the room where the crime took place when he was killed, finally recalled the solid evidence that could identify the killer."

"But he didn't trust the police, so he made an appointment with a psychologist for 4 p.m."

"I deliberately disguised myself as a strange person and sneaked into the apartment, then used the same method to kill the other party to avenge my father."

The yellow-haired uncle stood behind the curtains on the second floor, staring fiercely at the uninvited guest outside the wall.

[Damn cop, why don't you get out of here? ]

He would never have thought that his identity as the murderer had been discovered by Lin Xuan.

The high school detective remembered something and continued to explain:

"The criminal psychologist was the inmate who was left with a 'I'-shaped wound on his back by the management officer. This time, the imitator carved a capital letter 'Z' on the body instead of the 'N' that the police officer had guessed."

"The purpose is to cover up the wounds from fifteen years ago and mislead the police to follow the line of thought of the murderer to continue committing crimes."

Sato was about to contact Megure to report Lin Xuan's reasoning, but her finger on the key suddenly stopped. She frowned and asked Lin Xuan:

"What about the evidence?"

Lin Xuan blinked, then whispered in Sato's ear.

The cold policewoman's eyes immediately flashed with anxiety and worry. Her concern for her lover made her want to object, but as a criminal police officer, the last thing she said was:

"Don't be stubborn. If something goes wrong, I will come to help you as soon as possible."

Although he is just a high school student, the fighting ability that Lin Xuan has demonstrated in past cases is no less than that of the fierce detectives of the Metropolitan Police Department, otherwise Sato would not have agreed to let him take the risk.

But even so, Sato was still worried enough to purse her lips, and her capable hands unconsciously rubbed the corners of her uniform.

If he hadn't been secretly observed by the criminals, Lin Xuan would have hugged the policewoman tightly and kissed her passionately.

The pair of eyes hidden behind the second-floor window watched the policewoman drive away, but the boy who came with her did not leave but rang the doorbell again.

"What does this brat want to do?"

The middle-aged man came to the gate of the courtyard cursing, and was about to yell at the other party to get out.

"I theorize that the murderer of your father should be the psychologist who was killed today."

But the boy's first words made the murderer freeze in place.

[How would he know? ]

"My name is Lin Xuan, and I'm a detective."

Lin Xuan's words revealed a sense of calmness, as if everything was under control.

"I haven't told the police officer this reasoning yet, because I still have some questions I want to ask you. Is that convenient?"

The murderer immediately changed his mind.

[If the police knew that the psychologist was the murderer of three murders back then, they would only investigate the alibi for today's case]

【I am easily suspected! 】

The lawyer's son who was murdered fifteen years ago, now a middle-aged man with yellow hair, tried hard to show his excitement:

"Are you telling the truth? As long as I can find out what happened to my father, I'm always available!"

……

Five hours later.

Dr. Agasa, who was forced to come to help, was yawning in the driver's seat of the Beetle, while Conan next to him was full of excitement.

After a long investigation, he finally figured out the connection between several victims.

The doctor, university professor, lawyer and psychologist who were killed were actually friends who often played mahjong together.

The capital letters representing directions on the first three bodies refer to mahjong tiles.

The Grim Reaper also deduced that the murderer who committed the murder fifteen years ago, twenty years ago, was a psychologist.

He even deduced the motive for the murder through old newspapers and the mahjong parlor owner's memories of the four guests:

"At the time, the mahjong players were discussing whether a perfect crime was possible in reality. In order to prove his ability to his friends, the psychologist stole the patrolman's pistol."

“Unexpectedly, instead of praising me, the doctor and the university professor planned to report the psychologist, who was just a student at the time.”

"The psychologist killed them both in order to save his future, and five years later murdered the lawyer who discovered what had happened."

Conan adjusted the bow-tie voice changer to Kudo Shinichi's frequency, pressed the dial button and said smugly to Huibara sitting in the back seat:

"Lin Xuan must have been busy taking advantage of Officer Sato all night. How could he have had time to investigate the case?"

Before Ai could speak to defend her lover, Conan pressed the hands-free button on his cell phone and heard Megure Jusan's puzzled voice:

"Brother Kudo? Why are you contacting me so late?"

The detective said confidently:

"It's like this, Inspector. Conan contacted me before."

"He said that the criminal from 20 years ago committed a new crime before the statute of limitations was about to expire. My reasoning may be able to help the police."

Although Conan has only deduced the truth behind the first three murders, he has not yet confirmed the identity of the copycat.

But only after giving Megure some sweet treats will Conan, who is investigating the case on behalf of Kudo Shinichi, be qualified to participate in the investigation.

Otherwise, without the police accompanying them, the victim's family, knowing that letters were carved on the victim's body, would simply ignore the elementary school student.

However, the police chief's answer was beyond his expectations:

"Oh, you mean the case of the murder of the criminal psychologist? Lin Xuan has helped us arrest the murderer."

"It was the lawyer's son who was murdered that year who imitated the crime, and the psychologist is the culprit in the first three cases."

As early as five hours ago, the murderer was provoked by Lin Xuan's words and admitted to the murder and attempted to silence him.

But he was no match for the detective. Lin Xuan not only recorded the evidence but also helped the police subdue the murderer.

Conan couldn't believe his ears.

[While I was still working hard to track down the clues from that year]

[Lin Xuan has taken care of everything? ]