Risking their lives to solve the case, criminals all over the network are going crazy

"I have been to the scene, the scene is not chaotic, and the range of activities of the deceased is very small."

"Just lying next to the desk, it means that I haven't struggled much."

"Moreover, this kind of air nail gun shooting, the probability of death in a short time is not high."

"So, I guess added fast-dying cyanide..."

Yao Mutong nodded, and couldn't help but secretly say that Liu Yu's speculation was accurate.

Looking at the corpse phenomenon, the temperature of the corpse dropped by about 0.75 to 1 degree per hour on average, and the time of death identified was about 1 a.m. at night.

Of course, this is the law of descent in the first ten hours after death.

The transparency of the cornea decreases, and the gray-white pupil is cloudy.

Muscle relaxation, etc., all show death around one o'clock in the morning.

As you can imagine, at one o'clock in the evening, Zheng Yinian sat on the table, did a lot of struggle in his heart, and then took out a pistol.

Crisply and neatly shot himself in the temple.

Wrong!

Wait a minute.

What about cyanide?

No cyanide was seen during the site inspection.

Did you still run somewhere else to get a few drops, stick them on the bullets, and bring them back??

It's kind of.

I'm going to commit suicide, do you still care about this?

Again, back to the scene.

Open the golden pupil and the king of smell at the same time.

Rich flavor, bitter almond flavor.

Filled the room, buzzing the nose.

Liu Yu kept searching the room, and finally stopped in front of the bookshelf.

At the top of the bookshelf, about one meter eight high, there is a small bottle with a strong bitter almond flavor coming out of it.

Exactly cyanide.

Strange, what's going on?

The first time I came in the morning, it didn't have such a strong taste.

Now the smell is obviously very strong, and in addition to the smell of several police comrades in the house, there are many people.

Someone has been there!

Or, this cyanide was also placed here later.

That Zheng Yinian's death is most likely a homicide.

The murderer was so secret that he forgot to put cyanide, so he put a small bottle of cyanide prepared in the study.

Monitor!

Sixth floor surveillance.

The two came to the monitoring room again.

After checking the monitoring throughout the period, I found that there were still many people who went to the penthouse villa, and Mr. Zheng's relatives and the company's senior management had also gone to the study.

Su Xuehan, her face was a little ugly, and she was worried that the police had come to her home many times.

Su Xuehan said that a lot of company-related materials were placed in the study, so some things let these people go in and get the information, and they were there the whole time, and they didn't see the mysterious and special situation.

But the location where Mr. Zheng died did not let people get close.

Liu Yu touched his eyebrows, and he had a headache.

He felt like he was one step late, if he had discovered the problem earlier.

Perhaps, you will be able to catch the tail of the murderer.

Liu Yu was not in a good mood, more than a dozen people, and those relatives who heard the news.

Several company executives, managers, and secretaries were called to the office one by one, and everyone had a very reasonable reason to go to the study.

Liu Yu also turned on his sense of smell.

He found that everyone had a faint bitter almond flavor, but the same degree of intensity.

Some are light, some are thicker.

All ?!!!

Cyanide had been in it before they arrived.

At this time, Liu Yu thought of the nanny, the first person to find out that Zheng Yinian was dead.

Hiss~~~

Good guys.

There was no smell on the babysitter.

Everyone else has it, but she doesn't, this... It's fascinating.

Is there a deliberate alibi?

As for those relatives, it is simpler, most of them are still at home.

But there was a person who had left beforehand, who was also an employee of Zheng Yinian's company, and also his nephew, named Ye Ning.

Liu Yu frowned, his expression extremely complicated.

"Could it be him?"

"Even, the assassination of Zheng Yinian was not done by one person, but by many people joining forces."

"It's too late, as soon as people change their clothes, or stay in the open space for a while, the smell disappears."

However, from the perspective of the motive for the crime, this so-called nephew has no motive at all.

He still had to rely on his uncle's big tree to survive, and there was no reason to assassinate him.

Want a legacy? Sorry, not your share.

Not the first in line to the throne.

His wife, son, and parents are still there, and he can't get a nephew.

Liu Yu's eyes suddenly lit up, and instantly darkened: "Unless... No way.

"What is impossible?" Li Sansi asked aside.

"Zheng Yinian was shot remotely by someone outside through a window." Liu Yu has a huge brain hole.

The gun was also secretly put in afterwards.

Liu Yu asked the nanny again: "When Zheng Yinian's body was found in the morning, was the window open or closed?"

The nanny frowned slightly, seemed to be thinking, and said softly: "It's on." "

The window is right next to the desk, and it's a big floor-to-ceiling window, a plain left and right horizontal window.

Liu Yu observed with his golden pupil, and this window had traces of frequent opening. Last night, after arranging the work and leaving the secretary, Zheng Yinian opened the window to breathe, and then returned to the desk...

And then... Shot.

Afterwards, the murderer put the gun back into the study.

Is it hard?

It's easy.

Because, Liu Yu thought of a person, called Bai Shan, the little brother who used a mechanical bird to monitor him!

Illustrate what? Drones have grown to the point where you can't imagine. It's easy to remotely control a small flying machine and put a modified air nail gun in the bedroom.

Because the windows are open.

Enough for a drone to fly in.

“·····" Li Sansi was silent: "The brain hole is very big. "

But it is not impossible, it is like this in handling cases, bold assumptions, careful verification."

But the problem is... That air nail gun has Zheng Yinian's fingerprints on it.

Dead, how to still hold the gun and leave fingerprints.

So what if before, Zheng Yinian had moved the air nail gun, and then the murderer hid the gun.

Just to wait for today's assassination.

Even, the bottle of cyanide was just put in the study by the murderer's control drone.

The murderer is nearby!

Didn't run far!

Liu Yu sneered: "I didn't run far." "

Opposite the window are several factory buildings, many of which are the vantage points of shooting.

UAVs, a general control range of one to two kilometers is best, of course, a few hundred meters is better.

That's right.

If the murderer controls the drone to return to the study again, the sound of the drone should probably be heard.

The nanny and Su Xuehan all said that they did not hear the humming sound.

Below the study is a six-story office building.

Ask downstairs.

After asking several people near the study area, one of them reported that not long after Liu Yu and their arrival, they heard a humming sound and did not look carefully to see if it was a drone.

An icy smile appeared on Liu Yu's face: "Sure enough!" "

Chase!" Liu Yu said coldly.

Tune the panoramic real-time map at the same time.

Keep switching between screens and observing your surroundings.

"Huh? That was... Drone! Liu Yu was overjoyed in his heart.