Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Gao Xiaoguang said doubtfully: "There was no trash can in the warehouse, so I just threw the tea leaves into the black plastic bag."

"But...how can you find me based on this tea? There are so many people who drink tea, and there is DNA information on it. Even if you have it, you can't find me."

That's true. Even if there is DNA information on the tea leaves, it cannot be matched with Gao Xiaoguang, because Gao Xiaoguang is not among the suspects of the police.

After all, Gao Xiaoguang even left body fluids in the victim, but he still hasn't been found.

What Gao Xiaoguang didn't expect was that Lu Chuan could actually recognize what kind of tea residues they were.

Not everyone can afford to drink Dahongpao, which costs more than 1 yuan per two liang.

In addition, Gao Xiaoguang used selenium-rich spring water to make tea, which left a lot of clues for Lu Chuan's investigation.

The interrogation ended quickly and Gao Xiaoguang was very cooperative.

At the same time, Lu Chuan finally got the final result of the DNA comparison.

When Li Donglin saw the final result, he let out a long sigh.

success!

Sure enough, the comparison was successful.

This serial murder case that spanned 15 years and killed 11 people finally came to an end here
In fact, before getting the final DNA information comparison results, Li Donglin was still a little nervous.

Although Gao Xiaoguang has confessed everything, it is difficult to say whether the case is true without hard evidence.

As long as there was no irrefutable evidence of hypertension, he could return to work at any time. But it is no use now. The evidence is irrefutable and it will be useless no matter how indulged Gao Xiaoguang is.

"Good job!"

Li Donglin waved his hand fiercely and said to Lu Chuan.

“It’s all what should be done.”

Lu Chuan also breathed a sigh of relief.

He had heard of this case in Dongzhou City when he was in school and had studied the case therein.

Although many details were unclear at the time, and naturally there were not as many details as when he looked at the case files this time, he had actually heard about the general course of the case.

Precisely because he had some understanding of it and had heard about it when he was in school, Lu Chuan himself did not have much confidence in this time.

"Gao Xiaoguang has fully explained the entire murder process, as well as his planning process. All the details basically match the information we have now."

Li Donglin felt a little emotional.

They have been in Tongzhou City for more than a week.

But I can't go back for the time being. Although Hai'an has basically figured out who is responsible for Zhu Panpan, there are still ten cases to deal with.

All the cases that Gao Xiaoguang had committed in the past must also be identified one by one and all the details must be explained clearly.

The serious crime squad will be fully responsible this time, and Dongzhou City will only cooperate.

Therefore, Li Donglin will have to lead the serious crime team to stay in the Dongzhou City Criminal Investigation Detachment for a period of time, and they will definitely be unable to leave in the short term.

That afternoon, Gao Xiaoguang was taken to identify the scene.

And the small warehouse at the first crime scene was finally opened.

It's actually very clean inside, and you can't tell that anyone had been killed there.

Gao Xiaoguang was very cautious and careful. He cleaned the first crime scene very carefully.

It was not a simple matter of cleaning up the bloodstains at the crime scene. He used some chemicals to degrade the iron ions in the bloodstains, so under normal circumstances, the presence of bloodstains could not be seen using infrared or ultraviolet light.

However, Lu Chuan still found some blood residues in some corners and cracks, which confirmed from the evidence that this small warehouse was the first crime scene where Zhu Panpan was killed.

This case has basically come to an end. Wang Song and Song Mingguang will provide further training to Gao Xiaoguang.

Gao Xiaoguang needs to explain the circumstances of the deaths of the first ten victims one by one.

Li Donglin's office.

Lu Chuan is reporting on his work.

This is the 10th day that the serious crime team has been staying in Dongzhou City, and the case has been solved quite smoothly.

Gao Xiaoguang remembers every detail of the previous 10 cases very clearly.

In addition, before each crime, except the first one, Gao Xiaoguang had a very detailed crime plan. The police found a small black notebook in the safe at home.

Gao Xiaoguang was accustomed to recording all his security plans in this little notebook. Before each murder, he would check the plan against the notebook to see if there were any loopholes.

Of course, these plans don't always succeed.

Gao Xiaoguang's black plastic notebook recorded a total of 14 murder plans, but he only carried out 10 of them.

Among them, there were four murder plans, but Gao Xiaoguang was forced to terminate them due to problems in their execution.

According to Gao Xiaoguang, since his first murder, he planned to kill one person every year, no more and no less.

After the first murder, he made 1 murder plans, corresponding to one murder every year. Normally, he should have killed 14 people by now.

However, because the plans of the four people had changed, Gao Xiaoguang was afraid of being exposed, so he did not take the risk.

"Director Li, the work of the serious crime team has basically come to an end. There may not be much point in staying here for the current investigation. I want to go back soon."

Lu Chuan came out just after the Spring Festival, and this time he stayed for about 10 days.

I haven't seen my child Qingchun for a long time and I miss him a little. I have wanted to go back for a long time, but I feel embarrassed to do so. Before, the members of the serious crime team were all alone with him and it was not good to leave him.

Gao Xiaoguang's case is now basically coming to an end, and as an on-site investigating criminal policeman, he basically does not have much work to do now.

"Okay, no problem, you go back first."

Lu Chuan has made great contributions in this case. Li Donglin has already reported this to his superiors and the relevant work request reports have been prepared.

In addition, Li Donglin has obtained the consent of the provincial department and made a simple summary of the relevant materials of the Dongzhou City Red Killer case, and has already made a report to the ministry.

At the same time, Li Donglin also submitted the request reports from the serious crime team and related individuals.

"When we're done with this, let's have a celebration dinner together."

"Yes!"

After saying goodbye to the people from the serious crime squad, Lu Chuan greeted Director Wu Guodong and then returned directly to Haizhou City.

Returning like an arrow.

Lu Chuan had never been so eager to go home before, but this time, for some reason, he really wanted to see his son. This was the first time Lu Chuan had been away from home for such a long time since his son was born.

When you get married and have a wife, you have a family, but when you have children, you have something to worry about.

Shen Yan's maternity leave has not yet ended.

When he returned home, Lu Chuan's parents were there.

"Mom, where is my son?" (End of this chapter)