After listening to the recording, Zou Cheng asked the police station, "Can you confirm the phone number?"

"I checked it, and it was a phone number with an unknown owner. The police officer said helplessly, there are still a lot of such calling cards, saying that they have been real-name system, but you can also buy calling cards online.

"However, the radio wave was sent from the transfer station only 300 meters away from the scene, so it is very likely that the call was made nearby. "The officer said the question.

Hearing the news from the police, Zou Cheng said: "That is to say, the murderer was not far away at the time, watching Qian Guangcai climb the iron tower, and then exploded and fell down." ”

"Yes, it's very likely. The officer said.

While they were discussing these things, the police officers who went out to investigate Qian Guangcai also returned, but the news they brought back was not very good.

That is Qian Guangcai's company, which is a loan shark, with many customers and miscellaneous.

Do you think he has a good relationship with those customers?

Of course, it's not good to talk about, it's easy to talk about borrowing money, and when you repay the money, you can't pay it back, and you're an enemy.

However, the police still took Qian Guangcai's customer information back, although many people in the company refused to let him take it, saying that it was their trade secret.

Qian Guangcai used to be the boss, but now that he is dead, the company is also fighting for power and profit.

However, the police need these materials to solve the case, and in the end they can't stop them, but they need the police not to leak the information.

Are you saying that usury is a crime?

It can only be said that it is a gray area, this kind of thing has risen rapidly in recent years, and the things you like me are somewhat difficult to manage.

Many of them are disorganized, and there are also those who cheat some money and run away, such as Qian Guangcai, who are already considered large enterprises in it, and have some reputation.

The police officers who investigated the chemical industry also returned, bringing back a lot of information, but they did not play a crucial role.

The police told Zou Cheng that the heads of those chemical companies said that their masters here basically wanted to make a bomb, and there was nothing difficult about it.

That is, all the people who are engaged in this area can complete the production of bombs.

There is no problem with this, the students in the school are fine, let alone those of them who have been on the front line for so many years.

When Zou Cheng saw the news that these two investigations came back, he felt that it was too useful, everyone could make bombs, so who made them?

Just when Zou Cheng couldn't figure it out, the news from the old man also came, and the old man's speed was very fast.

The body was brought back from the funeral home, and the old man directly began to dissect it, so the news came out quickly.

"Inspector Zou, the old man asked me to tell you that the bum's physique was found to be an alcohol allergy after the test was done, so it is impossible for him to drink. The police told Zou Cheng the news.

Since it's impossible to drink, why is there a bottle of wine next to him, and it's still a high-count wine.

It doesn't make sense, it's not a coincidence, someone did it on purpose.

"Inspector Zou, did the murderer?" the officer said.

Zou Cheng nodded and said: "It is very likely that there were no traces of the deceased struggling at the scene, so he died in an instant, and ordinary burning would not be like this." ”

In tandem, the two cases were done by one person.

Why did the murderer kill Qian Guangcai, and why did he kill the homeless man before killing him.

What is the connection between them?

"Find out who this homeless man is. Zou Cheng thinks this should not be a coincidence.

"Yes. The police officer came back without rest, and hurriedly ran out again.

Zou Cheng said to the police: "Send someone to check the video taken that day and the video of the surveillance near the street when the homeless man died, to see if there is the same person." ”

"Brother Zou Cheng, do you think the murderer has appeared?" asked Zhu Ting.

"The murderer on both occasions was the same person, and the modus operandi was the same, and he probably appeared in both places. ”

"Now as long as it is confirmed in the surveillance that the same person appears, then the murderer can be determined. Zou Cheng said.

The police officer knew that what Zou Cheng said was right, but the police officer frowned slightly and said, "Inspector Zou, we have professional people who watch videos, but such a comparison, and if the number is so large, it may take a week." ”

A week is too long?

Zou Cheng said: "Work overtime. ”

This kind of video can't be watched by another person, because you watch the front one and he watches the back one, and that's useless.

He doesn't know what you've seen in front of you, and you don't know what he's seen behind him.

If you look at it like this, it won't work, so you can only watch it alone.

The workload is too much, and Zou Cheng knows that it is a challenge for the police officers, but at this time, everyone must work hard in their own posts.

"Inspector Zou, are you sure you can find the murderer?" asked a police officer, a little worried.

"Bombers, if not terrorist attacks, generally return to the scene of the crime. Because they wanted to make sure the bomb exploded as scheduled. Zou Cheng felt that the murderer would appear in the surveillance and video.

"Okay, Inspector Zou, I'll arrange it. The officer ran down.

Zou Cheng didn't leave, sitting here, looking at the audio on the computer, those fluctuations reminded Zou Cheng of the skill book he saw in the mall.

There is a skill book on voice, Zou Cheng feels that at this time, should he get this kind of skill book, it will be helpful to him.

Zou Cheng began to draw skill books in the mall, and after a long time, Zou Cheng raised his head and smiled.

Five thousand at a time, Zou Cheng drew 50,000 and drew three skill books he wanted.

After studying, Zou Cheng put on headphones and began to listen to the audio again.

After one time, Zou Cheng immediately started the next one, and sat here like this, listening to the audio non-stop.

After I don't know how long, Zou Cheng suddenly said to Zhu Ting: "The prisoner is male, and his height is 168 to 171. ”

"Between the ages of forty-five and fifty-five. ”

Zhu Ting recorded all of Zou Cheng's words, but she was very surprised and didn't know what Zou Cheng relied on to determine it.

The police officer here also studies audio, and he was equally surprised.

He asked Zou Cheng, "Inspector Zou, did you hear that?"

"Yes. Zou Cheng nodded and said.

"Inspector Zou, we always say that the vocal cords are the fingerprints of the voice, even if a voice changer is used, but through the vocal cords, it can also be analyzed. ”

"But Inspector Zou, you can determine the characteristics of this person quite accurately just by using these few words, and this kind of thing can only be done by experts and authorities in this area. ”

"In our country, there are only a handful of talents in this area at present, where did you study. Zou Cheng could hear that the police officer didn't believe in himself.

Because this police officer is an insider in the industry, he understands this, he knows that there is a scientific basis for determining a person's characteristics through the vocal cords, and he does not think it is fake.

But if you want to do this, that is something that only authoritative experts can do, and there are few such people in China.

Zou Cheng didn't say anything at first, but now he said these words after listening to them, no wonder they didn't believe it.

Zou Cheng couldn't tell them that it was a skill book, so he could only say perfunctorily: "I studied it blindly." ”

"Zhu Ting, you go, tell these information to the police officers who watched the video, which can help them lock the murderer more quickly. Zou Cheng asked Zhu Ting to tell the police officers this information.

The police officers in charge of the audio, some don't know whether to say it or not, Zou Cheng said that he is blindly researching, so now these may be wrong.

If it's wrong, doesn't it have an impact on solving the case?

"Inspector Zou, I don't think it's better for them to find it by themselves, so they don't need these additional conditions. "What the police officer said was still very tactful.

Zou Cheng understood what they meant, and said with a smile: "They came to find it by themselves, without these conditions, they may not be able to find it in a week, these conditions are very necessary." ”

"I know what you're worried about, don't worry, I'm not going to joke about the case myself. ”

Hearing that Zou Cheng had already said this, these police officers couldn't say anything, so Zhu Ting sent the information to the police officers watching the video.

The police officers watching the video did not know where these materials came from, they thought they were investigating, but they didn't know that Zou Cheng heard them.

They think it's a good thing, and with these things, they can eliminate a lot of people, and it's a lot easier to find.

The police officers watching the video are two people, each of whom is watching himself without disturbing each other.

I've started checking the video now, but I'm not sure how fast it will be, and I don't know when I'll be sure.

So the investigation can't stop yet, you can't just wait for the video, Zou Cheng asked the police to continue the investigation.

Zou Cheng looked at the information they brought back, the list of customers of Qian Guangcai's loan shark company, and some information about the chemical industry in Jianghai City.

However, it is a little difficult to connect the two, and Zou Cheng originally wanted to see which company had taken out a loan from a loan shark.

But I don't know if I don't look at it, but when I look at it, I find that there are really a lot.

These are all small chemical industries, and they are all about to run out of business, so they have found usury.

Because of their situation at that time, it was impossible for banks to lend, so they had to look for usury.

After surviving the difficulties, they will come back to life, but they can only go bankrupt and close their doors.

Zou Cheng thinks that this will be the case, someone killed Qian Guangcai, then the murderer should have something to do with the chemical company.

Zou Cheng looked at it, there are too many factories in Jianghai City, because Jianghai City is too big.

A very well-known enterprise, Zou Cheng directly ruled it out, thinking that it was impossible.

Zou Cheng looks at small and medium-sized enterprises, more small enterprises, and Qian Guangcai's customers, Zou Cheng focuses on it.

No, Zou Cheng can't let it go, maybe they asked Qian Guangcai for a loan, and Qian Guangcai didn't give it, so he held a grudge.

It may also be that they have cooperated before, and it is possible that there will be no record after the money is repaid.

When he saw the evening, Zou Cheng summed up the list of eighteen enterprises, handed it to the police officer and said, "Send someone to visit tomorrow." ”

"Okay Inspector Zou, are you going back?" the officer asked.

Zou Cheng glanced at it, and Zhu Ting, who was napping next to her, said: "Yes, go back first, come back tomorrow, there is the latest news, notify me directly." ”

"Okay, hard work Inspector Zou. The police officer left with a list of eighteen companies that Zou Cheng had summed up.

"Wake up, go back. Zou Cheng shouted to Zhu Ting.

Zhu Ting woke up in shock, and looked at her watch, it was already ten o'clock at night, she was sitting here doing nothing, and she was about to fall asleep.

PS: Thank you for your support for the reward.