Wang Daguang touched his head: "Second, the murder weapons at the scene of the crime are exactly the same as those of Liu Yan and Fang Qing, where did the murderer's murder weapon come from?" This is also a direction of troubleshooting. ”

Re-screening the personnel in the community is another arduous task, because it has already been investigated once, and this time it is still done by Liu Xing and his subordinates.

Wang Daguang touched his head: "Second, the murder weapons at the scene of the crime are exactly the same as those of Liu Yan and Fang Qing, where did the murderer's murder weapon come from?" This is also a direction of troubleshooting. ”

Re-screening the personnel in the community is another arduous task, because it has already been investigated once, and this time it is still done by Liu Xing and his subordinates.

The search for the source of the murder weapon was handed over to Wang Daguang and his men.

What is frustrating is that after a detailed investigation, the relevant suspect has still not been found.

And there is no good news from Wang Daguang's side, a murder weapon similar to a fruit knife can be bought in ordinary supermarkets.

Xu Fan's call gave Liu Xing a wake-up call.

He said: "The murderer took five lives in two consecutive days, is there really no connection between him and these people? There are so many people in F City, why didn't he go to someone else? Is it just because Liu Yan abandoned his own flesh and blood? ”

Xu Fan's words are not unreasonable, in this world, the things of losing children, stealing children, and abandoning children happen almost every day, why did the murderer only target Liu Yan? Could there be any reason for this?

After combing through the process of the case again, he felt that it was still necessary to sort out the victim's social relations.

Easier said than done, Liu Xing has been a criminal policeman for more than ten years, and he has encountered many large and small cases, and he has also experienced a lot of homicides.

But as long as the victim's social relationship is carefully considered, the answer can always be found in it. After all, most criminals don't have that much intelligence.

Most of those brain-burning and difficult cases appear in the plot of the TV series, and the real murderer can always leave more or less clues in today's modern technology.

Sometimes, even elementary school students can understand some of the flaws.

I remember a love murder case, where the son, who was in the first grade of the family, expressed his opinion on the murder case that had recently been rumored at the dinner table.

In the words of the son, this must have been done by a madman who was trapped in love.

The result was exactly as his son expected.

It's just that the case in front of him made Liu Xing very confused.

This is the case he has encountered since he became a criminal police officer who has killed the most people in a short period of time, and there is no trace at all.

He had a faint hunch, and from the point of view of the modus operandi, it was neat and tidy. It cannot be ruled out that the murderer had previous experience of killing.

Will the murderer continue to commit crimes? It's not impossible.

It's just who will be his next target?

Or is it a parent who abandons a baby?

Three days later, a meeting was held between the officers of the two sub-stations responsible for investigating the case.

As for Liu Yan's social relationship, it can be judged from Wang Daguang's expressionless face that there are no valuable clues investigated.

Wang Daguang's subordinate Qian Bing said that although Liu Yan is not very old, she is a little girl who has traveled south and north to see the world, and her social relationship is not simple.

In the two years since Grandpa Liu Yan's death, she has been to the northernmost city and the southernmost city.

The longest stay is still in F City, which is more or less related to Fang Qing.

Before coming to F City, Liu Yan also had several boyfriends.

After the police investigation, they are all some little boys of the same age, who don't know what love is at all, and they are just playing at home.

If you have money, you will go out and have a good time, and when you have no money, it is common to stay in an Internet café and be hungry.

These little boys haven't been in contact with each other since they beat Liu Yan and came to F City.

Therefore, the possibility that the murderer has something to do with Liu Yan has also been ruled out.

As for Fang Qing, Wang Daguang's opinion is that the reason why the murderer made the first move on Liu Yan is obviously because he doesn't know Fang Qing very well, and the possibility that the murderer knew Fang Qing can also be ruled out.

Liu Xing, on his side, focused on investigating the social relationship between Wang Liya and Zhang Ming.

Xu Fan put forward a different opinion, he said, although Wang Liya and Zhang Ming's crime scene is similar to Liu Yan and Fang Qing's crime scene, but there are still differences in the modus operandi, Liu Yan and Fang Qing's case modus operandi is neat, and in the case of Wang Liya and Zhang Ming, the murderer seems to be in a particularly unhappy mood, although the fatal injury is in the neck, but the chest has been stabbed several times, could it be that the murderer is not the same person?

Wang Daguang's subordinate Qian Bing raised objections.

He said that the murderer's initial target may not have been Wang Liya and Zhang Ming, it was a crime of passion, and it was not carefully prepared, so the modus operandi was a little messy, but there was still no trace at the scene of the murder.

The real targets of the murderer are obviously Liu Yan and Fang Qing, and after full preparation before committing the murder, the crime process seems to be orderly.

For most of the day, everyone had their own opinions, as if there was no result.

Xu Fan was quite wise, changed the discussion of the case, and after investigation, he also found some suspects who could not prove his whereabouts for Wang Liya's social relations.

The first suspect is named Cao Hong, a contractor, who has a lot of money to get rid of the slag.

On the night of the crime, Wang Liya was the object of drinking in the bar with this Cao Hong.

Cao Hong is Wang Liya's regular customer, and every time he brings a guest to another girl, he doesn't want to order Wang Liya.

According to Xiao Huang, a waiter at the bar, Wang Liya once complained to her, saying that this Cao Hong doesn't like to be clean, and there is a strange smell on his body at any time, and he desperately leans his smelly body against her when he is drinking, making her want to vomit at any time.

If it weren't for Cao Hong's generosity in giving money, she wouldn't have accompanied this kind of person when she died.

Xiao Huang also said that Cao Hong always contacted Wang Liya in private and kept asking Wang Liya to provide special services, but Wang Liya did not agree.

The real reason why Cao Hong has a suspicion is this Cao Hong's experience when he was a child. When he was a child, he was abandoned by his biological parents on the edge of Tiankankan, and it was an old couple who adopted him.

Will this baby have a psychological shadow, and he can't see others abandon the child, so he will kill the killer.

On the night of the crime, Cao Hong couldn't justify his whereabouts, one moment he said that he had drunk too much and fell asleep in the car, and then said that he seemed to have found a girl to accompany him for one night. Who is this chick, he said that he drank too much and completely broke off.

On the day Liu Yan and Fang Qing were killed, Cao Hong was also unable to prove his whereabouts.

On the night of the crime, he and a group of customers came to the bar for a drink.

As soon as he came, he was going to find Wang Liya, and after hearing that Wang Liya had an accident, this guy squeezed two tears and decisively changed to another bar escort.

Drinking until almost 11 o'clock, I left the bar.

After that, where he went, he said again that he was broken and did not remember at all.

Therefore, Cao Hong had sufficient time to commit the crime, and he was listed as the first suspect.