Han Cheng and the others went to Shanlin Village for the Nanda corpse dismemberment case. Could it be that the murderer was afraid that they would find out something? Is that why you want his life?
From instigating Qu Xiao to commit suicide to intending to kill the police.
The murderer's actions have become increasingly unstable.
Han Cheng felt that they were getting closer and closer to the truth.
Han Cheng was worried that if the murderer failed to kill them, he might turn his gun on Xiao Aiqin's parents.
Therefore, Han Cheng had no time to rest and asked his comrades from the police station to take a group of people to Xiao Aiqin's house in Shanlin Village.
Fortunately, when Han Cheng and others arrived, the murderer had not had time to take action, and nothing happened to Xiao Aiqin's parents.
Xiao Aiqin's parents learned that Han Cheng came all the way to investigate Xiao Aiqin's case.
His eyes were filled with tears.
"Thirty years! I thought you police officers had given up on investigating this case, but I didn't expect..." Xiao Aiqin's mother choked up.
"Two old men, please rest assured that our people's police will not let any bad guys go. Murder cases must be solved. This is the principle that our criminal policemen adhere to from generation to generation!"
.......
"Old man, I have a recording here. Listen to it and see whose voice it is?"
After some small talk, Han Cheng went straight to the topic.
He did not hint to Xiao Aiqin's parents that there might be Xiao Aiqin's voice in this recording, in order to see their true reaction.
Yushan turned on her phone, turned the volume to maximum, and played the recording of the conversation between man and woman that Han Cheng found on the tape.
"Why does this girl's voice sound so much like Qinqin's voice?"
After listening to the recording, Xiao Aiqin's mother said.
"Old man, are you sure that girl's voice belongs to Xiao Aiqin? Yu Shan, please play it again."
Yu Shan nodded, and then played the recording again.
"That's right, this voice belongs to our family Qinqin. She is my biological child. How could I not remember her voice!" As she spoke, Xiao Aiqin's mother couldn't stop her tears from flowing down, and she burst into tears.
"Yes, this is the sound of our piano!" Xiao Aiqin's father followed.
"Old man, is the dialect Xiao Aiqin speaks unique to your village?" Han Cheng then asked.
Xiao Aiqin's father shook his head, "No, this is the dialect of our county. People in Longlin County generally speak it! But few people outside Longlin County can speak this dialect!"
Originally, Han Cheng thought that the dialect Xiao Aiqin spoke in the recording was a dialect unique to her hometown, which could greatly narrow the scope of investigating the suspected man.
But they didn't expect that this was a county dialect, so they had more targets to investigate!
Still, they gained something.
At least it proved that the mysterious man and Xiao Aiqin were fellow villagers, both from Longlin County.
After leaving Shanlin Village and returning to the backlog team of Jiangnan Branch of Nan City, Han Cheng thought of a person, Zhong Shi.
He may be the only person who has heard the murderer's voice so far.
Zhong Shi once said that he suspected that the person who said "Young man, how does the meat taste" behind his back was the murderer.
If the man's voice that Zhong Shi heard and the man's voice in Xiao Aiqin's tape came from the same person, then there is a high probability that the man Zhong Shi thought was the murderer was Xiao Aiqin's mysterious boyfriend!
Zhong Zhi has now completed his trial in court and will be executed by firing squad in a few days.
Han Cheng did not dare to delay, and immediately came to the prison and showed Zhong Shi the recording of the conversation between Xiao Aiqin and the mysterious man.
After hearing this, Zhong Shi shook his head and said, "That person didn't speak to me in dialect back then, but in Mandarin."
There is indeed a big difference in the intonation of a person speaking in dialect and Mandarin. It's no wonder Zhong Shi can't hear it.
However, Han Cheng quickly thought of a solution. Today's AI technology is so advanced that AI can generate sounds in various languages with just a piece of original sound.
Han Cheng asked Shen Mao to use AI software to generate an audio clip saying "Young man, how does this meat taste?" in Mandarin based on the mysterious man's voice.
After Han Cheng listened to the audio to Zhong Shi, Zhong Shi immediately opened his eyes as if he was electrocuted, "It looks like! It's so similar! That's the sound!"
The murderer of the NTU body dismemberment case, now all kinds of evidence point to Xiao Aiqin’s mysterious boyfriend.
Han Cheng summarized the information he now knew about this mysterious man.
He is a native of Longlin County and an intellectual. He has half a fingerprint and a voice. He may have lived near Qingsha Road thirty years ago. He has a strong psychological quality and once hid in the dark to observe the sanitation workers who found the body parts. . . . .
These clues may seem useful, but searching for each clue is very time-consuming and energy-consuming.
For example, there were hundreds of thousands of people in Longlin County back then, and there were tens of thousands of people with a high school degree or above. This did not include some people who changed their household registration and moved to other places. If we checked these people one by one, it would probably take several years to check them. over.
Han Cheng felt that he could no longer use those "stupid" methods to chase the murderer, and he had to take the initiative.
They were the ones who revealed the murderer all along.
Why not use a trick to "lead the snake out of the hole" and let the murderer show up on his own initiative?
So how can we lure the murderer out?
This put Han Cheng in trouble.
This murderer seemed to have some great powers, and he knew every step of Han Cheng's investigation.
He found Qu Xiao, and Qu Xiao died. He found Xiao Aiqin's hometown, and he was almost assassinated by the murderer!
If we talk about Qu Xiao’s address, it’s because Song Wei’s post exposed her home address.
Then when he went to Xiao Aiqin's hometown, how did the murderer know his itinerary?
Han Cheng doubted whether the murderer was someone within the police system?
In fact, he had mentioned this bold guess to Mr. Li before.
But Mr. Li has absolute trust in the criminal police involved in handling the case.
If the criminal police involved in handling the case are not suspicious, what about the police officers who were not involved in the investigation of the NTU corpse case? And what about those who work within the police system but are not police officers?
Even if the murderer is not within the police system, if his relatives work within the police, he may still know Han Cheng's whereabouts.
Han Cheng decided to take advantage of the situation and set up a trap for the murderer to get inside and reveal his true colors!
In order to make this layout foolproof, he only told Mr. Li his plan, and he even hid it from the rest of the backlog team.
Han Cheng's plan is this.
First, he would deliberately tell the people in the backlog team that he had made a major discovery. A faculty member of Nanshi University had seen the appearance of the man who went shopping with Xiao Aiqin.
As long as they find a portrait artist, they can draw the murderer's appearance.
Finally, Han Cheng also revealed the residence address of the faculty member.
The address of the residence was real. Inside the residence was an empty house, and people from the Second Criminal Investigation Team were ambushing inside.
Han Cheng lied and said that he had not found the painter yet and planned to find the faculty member tomorrow to draw the murderer's face.
In fact, he said this deliberately to give the murderer time to enter the situation. As long as the murderer knows the news, he will definitely take action at night.
As long as the murderer gets to that room, he will have no choice but to wait to be caught in the trap.
