Everyone didn't understand what Yue Yang meant for a while, and Yue Yang hurriedly explained to everyone.

"Generally speaking, the murderer will have his reason for leaving a word, either in order to express his emotions, the revenge has to be commemorated, and tell the world what the enemy did, so that everyone can see why he killed this person, what is the intention of doing this, this kind is the most, some murderers are smart and deliberately leave words to the police, the intention of doing so is either to mislead the police investigation direction to confuse the public, or want to play a game of cat and mouse with the police, this kind of criminal has extreme confidence in himself, He thinks he can play with the police, and most of them have hatred for the police, thinking that the injustice and incompetence of the police have made him suffer, so he uses his own way to take revenge, slapping the police in the face, these words on the photo are written elegantly and unrestrainedly, almost written down in one stroke, which shows that he was in a very happy mood at that time, and a person will write in big characters when he is in a good mood, especially on the wall. ”

Guo Shulin nodded and said, "We have compared the handwriting, these words are indeed not written by Kim Zhenglong, but why are you sure that this must be October 10th?" ”

"I'm not sure, just guessing, if this represents the vintage, then what was the murderer's intention? Tell us he'll commit another crime in 2020? That's too long, isn't it? I don't think so.,Often some thoughtful serial murderers have already thought about the next target when they kill the first person.,In order to prevent other targets from escaping, he will definitely complete his plan as soon as possible.,The reason why I didn't write it was October 10th, in fact, this was a puzzle he deliberately left.,He doesn't want us to crack the secret of the numbers in the shortest possible time to guess the time of his next action.,It's not a good thing for him.,It's also a clue, After all, if it's too difficult to set up a secret for us to guess, wouldn't his plan be meaningless? October 10th we can understand the number 1010, then the second goal is to double, the double of 1010 is exactly 2020, today is the ninth day, that is, there will be a second victim after the early hours of tonight. ”

Yue Yang's reasoning made everyone present gasp, if this was a serial murder incident, then after tonight, I am afraid that a second victim will inevitably appear.

What is a headache is that now everyone knows nothing but a footprint, how old this person is, what he does, where he lives, and what his relationship with Kim Jong Long is.

It can be said that the current Jiangbei Police Department knows almost nothing, where to find the murderer in the vast sea of people?

Luo Yuan's brows tightened, he realized a very serious problem.

"If what Yue Yang said is right, then our previous investigation direction is all wrong." Luo Yuan said with a serious face: "If it is a loan shark or an enemy who killed Jin Zhenglong, then their goal has been achieved, there is no need to leave a word at all, even if it is to write, it must be written to express his inner thoughts, such as Ma Jinlong is innocent of death, etc., not a strange number, even if it is to ask for debts, then leaving a word should imply that Jin Zhenglong's relatives and friends are about to repay the money, and I have more contact with the debt company, in order to get money, it is possible to beat and scold the victim, but it is impossible to kill, The debtors were beaten to death, not only did they not get the money but they would also go to jail, they would not do such a stupid thing, whether Yue Yang's judgment was prepared or not will be known tonight, if it is true, I hope it is false. ”

Luo Yuan really didn't want to face this serial murderer, and he didn't want anyone to be killed again.

In the past, there was a general direction of investigation, but Yue Yang didn't even have a direction when he said this, how can he check this?

"So what do we do next?" Guo Shulin looked at Luo Yuan a little anxiously.

"You immediately go and investigate Kim Zhenglong's social relationships, the more detailed the better, you can't give up halfway in the investigation of usury, continue to investigate, Yueyang Han Li, what do you two think?" Luo Yuan asked.

"I want to go and see it." Yue Yang said.

"I'll go to the autopsy and see if I can find any clues."

Luo Yuan nodded, "Okay, that's it, then we'll go to the scene now, and the others should do what they should do." ”

After the meeting ended, Luo Yuan and Guo Shulin hurried to the scene with Yue Yang.

Dongcheng Street of Binjiang Road is an old block of the last century, and now it has become a concentration of migrant workers, there are a large number of rental houses around, the population flow is very large, and the composition is complex The public security situation is not optimistic, although there is surveillance, but these local roads extend in all directions, and the small roads are countless, and some people simply pass from the roof, and the dense flow of people wants to catch the suspect through the monitoring is too difficult, not to mention that there is not even a psychological portrait now.

The police estimated that the suspect's height was about 1.7 meters from the shoe prints and stride, and because he was wearing labor protection shoes, he judged that this person might be a person who had been engaged in heavy physical work for a long time, such as a construction site worker.

Other than these, there are no clues to the whole case.

The No. 27 rental house where Kim Jong-ryong lives is a small, single-room brick house, located in a very inconspicuous position at the end of this street, there are no street lights in this place, there are garbage and dog shit piled up on both sides of the road, leper dogs can be seen everywhere, behind the rental house is a large wasteland, which is an industrial reserve land planned by the municipal government, and there are several paths leading to the development zone on the wasteland, so it can be said that the murderer can easily kill Kim Jong-long by choosing a route.

After arriving at Dongcheng Street, Yue Yang did not rush to the rental room, but walked around, and finally he stopped at the back of the No. 27 rental house.

Yue Yang pointed to the grass on the wasteland and said: "I think this may be the murderer's course of action, taking this road can avoid all surveillance, and there are no street lights at night, even if someone faces him, he may not be able to remember his face, I think it is necessary to search these places in detail, it is best to find the police dog, maybe there will be new discoveries." ”

"I'll arrange it." Guo Shulin responded without any hesitation.

In order to catch the suspect as soon as possible, Guo Shulin also specially sent a few brothers to squat nearby, but in the past few days, the suspect was not caught, but several gangsters who collected debts.

The rusty tin door has been splashed with paint by debt collectors, and the words "pay back" can be seen everywhere on the walls.

The room was dirty and messy, with little furniture left except for a bed and a broken table, the air was damp and dark, with a musty smell, and a few buckets of instant noodles covered with green hairs on the stove.

The outline of the corpse drawn by the police with chalk on the ground has been clearly visible, when Kim Jong-ryong fell to the ground on his back, his body was in a semi-curled state, there were no traces of a fight at the scene, all the doors and windows were intact and there were no traces of destruction, the tables and chairs were still placed in their original positions, there were several scratches left by the murder weapon on the table, the police had done a trace identification and judged that the murder weapon should be a kitchen knife, but the kitchen knife of Kim Jong-long's family was not lost, that is to say, the murderer came with a kitchen knife to commit the murder.

After the murderer left, he brought the door from the outside, and the next day after the incident, the landlord came to collect the rent and found that Kim Jong-ryong was dead, so he called the police.

"We judged that the murderer should be an acquaintance, he should have entered the house by knocking on the door, and then he controlled Kim Jong-ryong and slowly tortured him to death." Guo Shulin said.

"Don't you think this case is weird?" Yue Yang frowned.

"You mean why Kim Jong-ryong is obedient, right? In fact, it is not difficult to explain, because it was an acquaintance who came, and he was subdued by the murderer without defense. Guo Shulin said.

"That's not what he's talking about, it's supposed to be potassium cyanide, right?"

Luo Yuan is an old man after all, and in a word, this is what he can't figure out the most.

"Yes, the murderer is wearing labor protection shoes and carrying a kitchen knife, which shows that his standard of living is not high, it stands to reason that such a person does not even know what potassium cyanide is, maybe he doesn't even know what potassium cyanide is, right? In addition, potassium cyanide is a highly toxic substance strictly controlled by the state, how can ordinary people buy it? ”

Yue Yang's thoughts coincided with Luo Yuan, which was exactly what he thought, and there were some things about this case that were too illogical.

Judging from the current clues, the murderer is very likely to be a low-level person engaged in physical activities, but the anti-reconnaissance ability he showed is diametrically opposed to his identity, the scene has obviously been processed, no fingerprints can be found in the house, and the footprints were still found at the door, after committing the crime, the murderer took away the murder weapon, this case is premeditated and planned, meticulous and meticulous, the murderer has a strong psychological quality, not only chopped off Kim Jong-long's fingers but also stacked them on the table, No matter how you look at it, it looks like the work of a veteran who is proficient in crime.

Guo Shulin also interjected on the side, "Why did he use potassium cyanide when he could kill Kim Jong-ryong with a kitchen knife?" Isn't that redundant? ”

"No, this is not an extra move, but a part of the whole torture, he has planned it a long time ago, cutting off his hands for a short time will not cause death, and potassium cyanide is different, it only takes a few seconds to kill a person, the murderer just wants to watch Kim Jong Long die in front of him, have you checked Kim Jong Long's address book?"

Guo Shulin nodded and said: "I checked, but his mobile phone has been blown up by debt collection calls in the past month, only calls, and none of them have been answered, not a single call has been made, it is estimated that he either did not bring it, or it is turned off." ”