When Chen Yan came to the conference room, everyone was already busy.

Along with Chen Yan, Wang Gang and Zhao Bing, who came from Liancheng, also went out to investigate with members of the special task force of the Tieshi Detective Team.

Zhang Chaoyang was left to cooperate with Chen Yan.

Wang Shun handed over a stack of reports: "Chen group, this is the information about the owner of the bodily fluid we found near the prison yesterday."

"Nine men have been summoned to the case, and I have dispatched detectives to make a surprise inquiry."

Chen Yan nodded. Apparently, some detectives did not rest yesterday and worked all night.

Chen Yan took the report: "Did you find anything?"

Wang Shun shook his head: "These nine people don't know each other."

"We focused on inquiring about their recent private life, and five people have already explained it."

Um?

"What's the specific situation?"

"In the past month, these five people have had a piaochang experience."

"But they don't know much about each other's situation."

"According to the account of these five people, they all met a woman who was soliciting customers on the street in the middle of the night, but it was dark and they didn't see each other's appearance clearly."

"But the woman's asking price is not high, it's only fifty yuan. Seeing that the other party is in good shape, these people are moved..."

Wang Shun shook his head, with a somewhat helpless tone: "The woman insisted on being outdoors, and...these people didn't last long, and they left after venting."

Sure enough!

Tang Xiuzhi's trick really worked.

However, this woman is much smarter than Tang Xiuzhi.

Chen Yan didn't need to ask carefully, he knew that the place the other party chose must be a dead corner without surveillance coverage.

But, without surveillance, can't find out where you are?

Do not make jokes.

Nine people!

That's nine people!

You can't attract a guest in this district today and a guest in that district tomorrow, right?

You always have an approximate range of activities.

Moreover, the mental activity of normal people is that this place will not be too far from their usual place of residence.

In this way, the approximate scope of this woman's activities can basically be locked!

"Immediately take measures to open the mouths of the other four people, I want to know where they were solicited to trade!"

A few wanderers who met the wild mandarin ducks in the middle of the night were not virtuous men and strong women, and a few detectives did some tricks and then recruited them.

on the map.

Nine locations have been marked out.

At first glance, there are no rules.

However, it is probably around one area.

Chen Yan pointed to this area on the map: "What is this place?"

The iron city is so big, and every detective is familiar with this place and can't be more familiar with it: "Chen group, this is the Nanyuan self-built housing area. It has existed for many years, and it should be demolished in the next few years."

Wang Shun squinted: "Chen group, do you suspect that the murderer is hiding in this area?"

Hiding in your own room?

no no.

Chen Yan shook his head.

Most of the self-built housing areas are tenants. Although the personnel are relatively chaotic, there are only so many local people.

Neighbors are actually very familiar with it.

Once something happens, everyone knows it.

Therefore, although this place seems to be good for Tibetans, it is not good for Tibetans.

In other words, it's easy to hide a technician's club, but there are really murderers...

As long as one is wanted, this kind of place will definitely be cleaned up ten or eight times first.

From the means of the other party's plan, Chen Yan is obviously more than that low-level.

Moreover, Chen Yan has actually become more and more clear about his motives.

Robbery!

Rob a female prisoner who will be released after serving her sentence in eight months, why?

love?

Give me a break!

Benefit!

It can only be profit!

This Zhang Xiaohua must have great interests.

Otherwise, there is no need for the other party to make plans three months in advance, deliberately arrange for the person to be imprisoned, and use high-altitude drones to drop body fluids to cause the other party to become pregnant.

Then plan it all.

But there are doubts here.

If Zhang Xiaohua had major interests involved, it should not have happened when he was in prison.

Absolutely before entering prison.

Then, since the other party has been waiting for two years, why can't they wait for another eight months?

You know, when Zhang Xiaohua regains his freedom, everything will come naturally.

There is no way to commit robbery.

Killed two office workers, a doctor, and stole two guns.

There must be an important change that made it impossible for the other party to wait for eight months.

This is all-or-nothing.

However, Zhang Xiaohua had no relatives and was only a secretary in the Tieshi Ruihao Medical Office before his death.

The social background is simple, no enemies, no lovers.

As for Wang Lili, who disappeared with Zhang Xiaohua, there is a bit of background.

A nurse who returned from studying in Japan worked as a nurse in a private hospital affiliated to Ruihao Pharmaceutical before being imprisoned for drunk driving...

Um!

and many more!

It's not right, it's not right!

Why are both of them working in Ruihao Pharmaceutical?

coincide?

Nonsense, in a case of over-prison murder, no detail can be a coincidence.

There must be something to do with this!

However, Wang Lili's background check is also very clean, going abroad, studying, returning home, entering a job...

Iron man, loves free fighting.

There is no enemy, and no lover.

Chen Yan looked at the map around the self-built house: "It is unlikely that they are hiding in the self-built housing area of ​​Nanyuan, but their residence is likely to be nearby."

The Nanyuan self-built housing area is located in the middle of the Nanyuan District, surrounded by several residential quarters.

Haojing Jiayuan, Century Palace, Jiangong Family Courtyard...etc.

There are old six-story buildings and high-end high-rise residences.

"Team leader," At this moment, the detective who arranged to investigate Hong Tao and Zhang Zhen came back: "The investigation results of Hong Tao and Zhang Zhen have come out."

Chen Yan turned his head with anticipation in his eyes: "What's the result?"

However, the detective shook his head: "Zhang Zhen's drone shop mostly rents out ordinary drones. The high-altitude drone he bought has only been rented out once."

"It was rented out by a media company to shoot high-altitude videos."

"We have checked the relevant records and there is no problem."

The detective who reported to him paused: "As for that Hong Tao, he bought a lot of high-altitude drones. In recent years, he has basically bought one every six months."

buy so much?

Chen Yan frowned slightly.

You know, high-altitude drones are not cheap. Why did he buy so many high-altitude drones?

"Have you found out what he bought these high-altitude drones for?"

The detective nodded: "I found it."

"There are a total of seven high-altitude drones It turns out that the drone enthusiast club set up by Hong Tao is quite famous in the province.

He regularly organizes members to participate in drone flying competitions.

He provides planes, and members only need to pay the membership fee.

This is friendly to drone enthusiasts.

After all, the better the drone, the higher the price. You only need to spend some membership fees to play a better drone. Many drone enthusiasts are still willing.

At the same time, these competitions will have sponsors, prizes for winning competitions, plus membership fees, etc., and the profits are not too small.

"What games does he organize?"

"Oh, I probably asked, there are low-altitude obstacle technical competitions, low-altitude racing competitions, and high-altitude racing competitions..."

"Wait!" Chen Yan listened to the detective's report meticulously, and suddenly stopped when he heard the high-altitude race: "What does that high-altitude race mean?"

"Oh, I've heard of this." Zhang Chaoyang took over the words: "UAV high-altitude racing is actually a competition for the ability of the drone controller to control the drone at high altitude."

"UAV's high-altitude flight is different from low-altitude flight. There is no reference around it, only a remote control video. It is also difficult to control a high-altitude drone to fly from one area to another within a certain period of time."

Chen Yan nodded.

Although he is not very clear about this aspect, he knows that flying drones is not as easy as he imagined.

UAV flight is even a specialized research organization.

However, Chen Yan doesn't need to know that much.

UAV high-altitude racing?

Ha ha.

You think you use someone else's drone, and I won't be able to find you!

This time, the hunter was also very cunning.