I don't want to solve the case when I'm a little policeman.

By the time Xu Zheng and the others rushed back to the Criminal Police Brigade smelling bad, the relevant test results had come out.

The bad news is that the items fished out of the excrement bucket do not have any clues other than proving that they were used by the murderer. If there are any, it would be to find the source of the masks and gloves, but this is undoubtedly a needle in a haystack.

The good news is that the plastic bag wrapped in clothes found at the base of the wall not only extracted a man's fingerprints from the plastic bag.

There were also traces on the clothes, but only fingerprints and no DNA-carrying hair, skin shavings, or fingernails.

However, this good news is difficult to say yet, because it is not yet certain that the jacket was left by the murderer.

The first thing Lu Shen did when he came back was to have the fingerprint searched in the fingerprint database to see if it could be compared. As expected, as long as the Chinese had an ID card, they could find out who the owner of the fingerprint was.

Zheng Jun, 31 years old, native of Pingjiang Province, ID card household address: No. 72, Matian Road, Tiexinqiao Street, Yuhuatai District, Changming, Ming'an Community
This address is less than five kilometers away from Mai Jingwei's home. The relationship between the two should be more than just two murderers in the same case.

They must have known each other before, maybe they were classmates or friends.

After Lu Shen got the news, he quickly asked someone to check Zheng Jun's mobile phone number and locate his location.

But soon, his colleagues reported, "Team Lu, currently the two mobile phone numbers under Zheng Jun's name cannot be located, and the SIM card cannot be read. The card must have been pulled out.

Moreover, the last call on his mobile phone showed that he had been turned off for three days.

Also, his two mobile phone numbers have no record of contact with Mai Jingwei or Mi Yu. "

A colleague who was investigating the vehicle under Zheng Jun’s name then reported, “It’s under Zheng Jun’s name, no, he doesn’t have a car under his name, but he usually drives a black Tesla with the license plate A3698F.

The car owner is his father's name, Zheng Dongshan.

The Sky Eye system showed that the car was parked in a parking space on the road outside his community and had not been moved for a week. "

"It seems that Zheng Jun has strong counter-reconnaissance capabilities." Lu Shen ordered again: "Check his relationship with Mai Jingwei, starting from elementary school, no, starting from kindergarten, and check their student status files."

He then named a squadron leader under their criminal police brigade, "Lao Yang, take the team to Ming'an Community as soon as possible.

At the same time, notify the community staff of Ming'an Community and the police station in the jurisdiction, and ask them to send people to assist you in investigating Zheng Jun's social connections.

After you get there, first check to see if he is hiding at home. The key point is whether Mai Jingwei is there. "

After Lu Shen finished arranging it, he asked Xu Zheng, "Do you see anything inappropriate about my arrangement?"

Xu Zheng recalled that Lu Shen and the others had previously investigated Mai Jingwei's social relationships. They had also checked his relatives, friends, classmates and colleagues, and it seemed that there was no such person named Zheng Jun.

But now that this person suddenly appears, it is very suspicious. Let’s not talk about the relationship between the two. Let’s just say that they are the same age and live not far away. It cannot be ruled out that they are having a small relationship.

But if it really was a child, why couldn't it be checked before?
"Team Lu, should we investigate Zheng Jun's family relationship again? Maybe he knows that using his own mobile phone number can easily be located, so would he use his wife's or someone else's mobile phone number?"

As soon as Lu Shen thought about it, he immediately arranged for colleagues to investigate this.

At this time, the colleague who had just investigated Zheng Jun’s mobile phone number reported again: “Team Lu, Zheng Jun has no criminal record, but he is a dishonest person enforced by the court. The bank cards, WeChat and Alipay under his name have not been used for three years. money transactions.

Also, he has no real estate in his name, and the property certificate of the house in Ming'an Community is in his mother's name. "

"Check his wife's situation. Is she also a dishonest person?" Lu Shen asked.

"No, the household registration information shows that Zheng Jun and his wife have been divorced for three years. They have a daughter and now live with the woman.

I also found that in October 2032, Zheng Jun stopped paying for the unfinished building in Xinhuamen Community, Yuhuatai District. He should have divorced his wife before cutting off the payment. "

If a house in an unfinished building is cut off, the bank will still sue if negotiation fails.

No wonder Zheng Jun became a dishonest person. Let alone bank card transactions, he couldn't even receive WeChat red envelopes.

In this case, how can he use third-party transactions such as bank cards, WeChat, and Alipay.

He cannot even use the bank cards of relatives and friends to conduct transactions, which is illegal.

Of course, this is said, but in fact, there are too many people in China who have cut off their credit and become dishonest. They borrow other people's mobile phone numbers and bank cards to conduct transactions, and the police and banks cannot supervise them all.

Because there are too many such people.

In this case, it will be difficult to find out whose mobile phone number and bank card Zheng Jun usually uses in a short time.

Xu Zheng lowered his head and pondered. Could it be that Zheng Jun became a dishonest person because the house was cut off and he couldn't make money, so he thought of stealing money from Mi Yu's family.

But this is impossible, because on the day of the incident, Mi Yu's family did not lose any money or jewelry.

Then why did Zheng Jun appear at the crime scene? Did he have a grudge against the deceased?
The more Xu Zheng thought about it, the more he felt that the death of the deceased could not be as simple as Mai Jingwei finding his lover when he came home and killing him in anger. "Team Lu, do you think this is possible? I remember you checked before and found that Mai Jingwei was killed one day in advance." The country to return to.

When he called Mi Yu and transferred money, he was already at Yuhuatai.

He then went home directly and saw the deceased and his wife in bed.

Although according to Mi Yu, she was excited after receiving the transfer, and because her husband was coming back soon, she wanted to be tender with her lover one last time before the year, so she drove out and took the deceased home.

But here comes the question, why did Mai Jingwei come back early? Did he already know about Mi Yu's affair? Why did he transfer money to Mi Yu when everyone was in China? Why did he climb over the wall and go home instead of knocking on the door?

Now look, do you think it was Zheng Jun who reported it to him? "

"You mean, Mai Jingwei asked Zheng Jun to help find out if his wife was having an affair?" Lu Shen thought along Xu Zheng's train of thought, "This help shouldn't be free, right?
If the two of them are still friends, whether it is for moral reasons or for money, Zheng Jun has no reason not to agree.

But how did he contact Mai Jingwei?

We checked all the call and chat records of Mai Jingwei after returning to China, and found nothing suspicious. "

It took about ten hours to fly back from North Africa. Xu Zheng thought of a possibility, "You said that as police we can reason, then can Zheng Jun, who has strong anti-reconnaissance capabilities, also be able to reason?
For example, after they met, he asked Mai Jingwei to call Mi Yu, and he also guessed that Mi Yu would definitely contact the deceased after hanging up the phone on her husband, and then pick the deceased up to have an affair with her at home. "

Gu Jia and Zhuang Yongshan were not sent out to perform the mission this time, after listening to the analysis of Xu Zheng.

Zhuang Yongshan expressed his opinion, "Director, Brigade Lu, what about the next step? Mai Jingwei jumped in, and in a fit of rage hit the deceased on the back of the head with a stick, and knocked Mi Yu unconscious.

Then he ran out.

Then he told Zheng Jun that he felt uneasy and gave the deceased another stick. When blood was spattered on his body, he wiped it with Mi Yu's underwear and disposed of his things before leaving. "Xu Zheng nodded, "Judging from the crime scene, this is indeed a possibility, but the locations of Zheng Jun and Mai Jingwei have not been locked yet. Where can these two people hide? "

Gu Jia looked at the satellite map of Yuhuatai District and suddenly pointed at the unfinished community of Xinhuamen, "Do you think the two of them could hide here? I think Zheng Jun should be very familiar with this unfinished building. .”

Every owner of an unfinished building must be dreaming that the construction site can continue to be built, and they will definitely pay attention to it often, and even go inside. At present, it seems that this place is indeed a good place for them to hide.

"Whether they are hiding here or not, let's send someone to check first." Lu Shen looked at his colleagues who were still in the conference room, named several of them, including Gu Jia and Zhuang Yongshan, and asked them to take people to the unfinished building respectively. , Zheng Jun’s parents and ex-wife’s home.

After making arrangements, he asked people to continue investigating Zheng Jun's social relationships.

Just when Lu Shen wanted to continue discussing with Xu Zheng where the two suspects would be hiding, he found that he walked up to a busy colleague and asked him to check the mobile phone number of Zheng Jun's ex-wife.

Then check the short videos on WeChat, Douyin, Weibo, and Xiaohongshu hosted by this woman’s mobile phone number.

Lu Shen didn't know what Xu Zheng meant, so he walked over without asking to see what he was doing.

As Xu Zheng opened the woman's Moments and Douyin videos, Lu Shen naturally saw the content posted by the woman. She used to post content about her children, but in recent months, it was all her own.

The content is either traveling around or shopping and dressing up, and people are becoming more and more beautiful.

In this case, it is very likely that the woman has started to fall in love, and she subconsciously wants to hide from the outside world that she has a daughter, dressed up so beautifully, and wearing pink lipstick.

This way of pretending to be young and innocent is not about falling in love or preparing for a blind date.

Lu Shen watched for a long time, but couldn't figure out what Xu Zheng was going to do. Logically speaking, Zheng Jun and his wife were divorced, so a woman had her own freedom if she wanted to fall in love or get married.

"Xiao Xu, do you think this woman will help Zheng Jun and Mai Jingwei hide?

Or do you think this woman is also their accomplice? "

Xu Zheng shook his head in denial, "My thoughts are exactly the opposite, Captain Lu, do you think this case looks like an exchange to kill one's wife?

Although there is insufficient evidence now, think about it, the bank only sued Zheng Jun, which means that the house that was terminated was Zheng Jun's pre-marital property, and no woman's name was added.

In addition to the pressure of the mortgage loan, their divorce may also be because the man wants to bear the responsibility himself. After the divorce, the bank will not sue the woman.

If the marriage broke up, then everything would be fine.

But what if the two of them get divorced but never leave home, and the woman suddenly doesn’t want to be with him and starts a relationship with another man.

What do you think he would think? "

"Then Zheng Jun will definitely go crazy. After all, he has become the subject of execution even after his divorce. He just wants his wife and children to not have to bear the debt.

If his ex-wife didn't want to live with him, he would definitely not be able to swallow this sigh of relief. "

According to past wife-killing exchange cases, the two suspects should testify against each other and provide each other with an alibi, or they should pretend not to know each other, or even have no contact with each other, in order to confuse the police.

But in this case, Mai Jingwei and Zheng Jun both killed Mi Yu's lover, so are they still exchanging to kill their wives?

Xu Zheng shook his head and said: "It seems that this case is not an exchange to kill his wife, Mai Jingwei was a crime of passion, and of course it may have been instigated by Zheng Jun.

As for Zheng Jun, he automatically became Mai Jingwei's accomplice with that blow.

If he used this to blackmail or ask Mai Jingwei to do something, do you think Mai Jingwei would agree to it? "

"That's for sure!" Lu Shen sighed, "They both committed crimes as a gang. Grasshoppers on the same rope must advance and retreat together. We previously agreed that Mai Jingwei had not seen his children for two years abroad.

So when he comes back this time, he has to meet his son and parents no matter what, right?

As a result, we stayed there for four days without seeing him show up. Looking at it now, Zheng Jun should have stopped him. "

The colleague who just followed Xu Zheng's instructions reported: "Director Xu, I found out the movements of Zheng Jun's ex-wife, Luan Yiyi, in the past four days. She either went to a supermarket or a scenic spot in various places in Changming.

I have never been to Xinhuamen Community, nor to Jiangjun Mountain.

Moreover, her phone calls and WeChat chats were not abnormal.

Do you want me to call the surveillance cameras near the community where she currently lives and check whether Zheng Jun and Mai Jingwei are here? "

Xu Zheng patted him on the shoulder, "Of course we have to check, but tell me first, where is this Luan Yiyi now?"

The criminal policeman worked for a while and quickly locked Luan Yiyi's location through her mobile phone number. "Her mobile phone location showed that she is now at RT-Mart Supermarket on Shangyuan Street.

Do you want to notify the patrol police on the ground and go there in advance for tracking and protection? "

"That won't work. The patrolling police officers are wearing police uniforms. It would be bad if we alert the snake. You first check the surveillance of the neighborhood near Luan Yiyi. If necessary, you can notify the police station in the jurisdiction to obtain the surveillance of the neighborhood."

After Xu Zheng made arrangements, he suggested to Lu Shen: "Captain Lu, why don't we go and follow this Luan Yiyi, or I can go alone. I always feel that a person like Zheng Jun dares to bear the responsibility of breaking his confession." The subsequent punishment for breach of trust.

Moreover, his actions are decisive and ruthless, and his counter-reconnaissance awareness and ability are very strong.

There is a violent element in his character, so he will not let go of a woman who wants to put a hat on him, even if it is his ex-wife. "

Lu Shen was a little embarrassed. He was now the person in charge of the 12.16 case. At this time, staying in the conference room and taking charge of the overall work was the main topic. But now, he felt that Xu Zheng's analysis was reasonable.

To go or not to go?
He made his own decision, "Xiao Xu, you will lead the team. Should I assign you a female colleague or a male colleague?
Convenient for you to perform tracking tasks?
Also, I will apply to Yuhuatai Criminal Police Brigade to send someone over to cooperate with your work. "

Xu Zheng looked around at the colleagues who stayed in the conference room. Unfortunately, the only two female colleagues were either older or they couldn't match him. He curled his lips slightly and said, "Team Lu, I'll follow them alone.

Don't worry, I'm a professional in tracking and monitoring. "

Lu Shen saw Xu Zheng's little move just now and secretly laughed in his heart. The two female detectives under his command would indeed have a high rate of turning heads when they go with Xu Zheng. After all, handsome men and beautiful women are the standard.

"Okay, it's up to you to arrange it. I'll send someone here to contact the police station where Luan Yiyi's community is located, and ask them to send people to the community to collect the surveillance video. We'll do it at the same time to see if we can find Zheng Jun and Mai Jingwei."

"Just make arrangements with Brigade Lu. Now I'm a soldier under your command, and everything will be under your command." Xu Zheng was originally a consultant, but now he offered to participate in the case, so he had to position himself so as not to disrupt Lu Shen's arrangements.

Lu Shen laughed and hit Xu Zheng on the arm, "Although I know that you are extremely powerful, I still remind you to pay attention to safety."