In the monitoring room, Du Tiecheng's face was pale. Because the surveillance camera showed that from the time Lu Yiqian was escorted in until he and Zhao Xuanji opened the cell door, no one had entered the room at all.

Including the two guards, they just watched outside the door, either laughing or quieting down to smoke. The footage is continuous, and there are no unexpected small movements at all.

Zhao Xuanji: "I see that there is a small window at the back of the cell, although there is a steel window lattice, but will there be any problems?"

The monitor opened the surveillance video of the lens, shook his head and said, "It's impossible to get people in, the window is only the size of a magazine, even if there is no steel bar, it is impossible for people to enter and exit." ”

The camera fast-forwarded to show, and it was true that no one was in or out. Including the area of nearly ten meters that the surveillance camera can cover, there is no human figure at all.

But Zhao Xuanji really thinks that the problem may be here, because this hut is just such a window, if there is a fatal injury from external factors, then it can only be through this one way.

Considering that the time of Lu Yiqian's death was about an hour or so, Zhao Xuanji asked the monitor to focus on the scene of about 20 minutes, and he wanted to take a closer look.

To be honest, the monitor and a few policemen next to him felt that Zhao Xuanji was a bit troublesome. Everyone is a professional police officer, and you are more capable than we are?

Besides, this is our territory, and if something happens, our side should be responsible for detecting it, and you are a strange police officer from outside who is here to take the lead, and sincerely embarrass us.

They only know that they want their own face, but they don't want to think about it, the suspect was caught by Zhao Xuanji and handed over to you, and now that people are dead here, what kind of face do you have to worry about.

Zhao Xuanji also ignored these people and stared at the picture quietly. Finally, his eyelids jumped, wondering if he was dazzled, and immediately shouted "stop".

The footage stopped, rewinded again for a few seconds, and slowed down several times. This time, everyone's eyes widened. After looking at the picture, they looked at Zhao Xuanji one by one like a monster, and this kind of abnormality in the heart can also be found?

Yes, a very subtle anomaly - a small black shadow flashed across the screen and flew into the window from the back of the house. Since the picture was not very clear in the first place, this thin black shadow only flickered away. Even if you look closely, you can't tell what it is, it seems like a small sparrow is passing by quickly.

But if you look closely, there is indeed a small black shadow that flashes past so quickly.

Everyone didn't say anything anymore, because even if they couldn't figure out what it was, even if they didn't know if Lu Yiqian's death had anything to do with this black shadow, at least Zhao Xuanji's observation power was something they didn't have.

Joke, Zhao Xuanji cultivates all day long, if he doesn't notice this kind of thing, how can he deal with the master's secret weapon? This is not too difficult for him to do.

Du Tiecheng asked with a gloomy face: "Officer Huang (Zhao Xuanji) What ...... your suspicions?"

yes, even if something small flies in, it can kill a big living person?

Zhao Xuanji nodded and said, "I'm worried that it's a hidden weapon or something, such as if it is thrown in, it will shatter and emit extremely toxic volatile gases." ”

So a policeman next to him couldn't help but sneer: "Secret weapon...... Officer Huang's associative power is really rich! The scope of this surveillance camera can observe about 10 meters behind the house, and after 10 meters or so there is a small artificial lake behind our police force, the diameter of which is at least more than 10 meters. Then there is the courtyard wall, and beyond the courtyard wall is the hillside behind. Officer Huang, do you mean that at least twenty-five meters away, what kind of hidden weapon can be thrown into that small window so accurately?"

There was no one who committed the crime within ten meters of the surveillance camera, and there could be no one on the artificial lake about ten meters behind, so it could only be outside the yard. Therefore, if you want to commit a crime, you need to be twenty-five meters away.

What is the concept of this length?

The answer is: close to the length of a standard basketball court!

And the windows are small, not to mention, there are a few steel bars in the middle. So it's impossible to make sure you're throwing it in accurately!

If you can throw it so accurately, hehe, why don't you go and play basketball? Standing in the midcourt and throwing it directly, the three-point shot is so cool that no one can stop you.

Several policemen felt that Zhao Xuanji's idea was a bit whimsical. Although you admit that your insight is amazing, you still have to be down-to-earth to solve the case, and don't take it for granted.

Zhao Xuanji didn't refute either, he just got up gently. Looking at the basketball court outside the police force, it is estimated that the distance from the door of the monitoring room to the opposite rebound should be about 35 meters away.

Without too much support, he casually picked up an inkwell on the table, walked out of the room, and took a few steps forward. As a result, the distance from the opposite rebound is less than 30 meters.

Squinted and looked at it, aiming slightly. Before everyone could understand what he was going to do, he threw the inkwell in his hand with a whoosh.

Syllable!

There was a crisp explosion, and the inkwell shattered in the small square box above the basket!

And almost unbiased in the center, the jet-black ink pattern is strikingly radial.

If you can't do it, don't think that others can't do it either.

Zhao Xuanji turned around and looked at the stunned group of people, and said, "Thirty meters, this distance should be a little farther than the one you said." Of course, I didn't deliberately practice this, I just relied on the instinct of a cultivator. If it's a master of hidden weapons, it should be more accurate. ”

It doesn't need to be more precise anymore, that's enough!

A group of Palm d'Or police officers were silent and shocked at the same time.

Zhao Xuanji didn't say anything, and returned to the detention center with Du Tiecheng, who asked the police to quickly search the hillside behind the courtyard wall to see if there were any footprints and smells left by the perpetrators.

And when Zhao Xuanji and the others came to the small cell of the detention center again, the doctor had already preliminarily examined the body.

It was indeed supposed to be poisoned to death. It should be a new type of poison, for example, after reaching a certain intake, it will make people paralyzed, but they don't feel too uncomfortable, and finally die slowly.

As for the way of poisoning, it is not something that doctors can solve. And the corpse also needs to be further autopsied before a more prepared answer can be given. It's just that the police don't need a more detailed answer, they just need to know that someone has poisoned their mouths.

Now I know that I should have died of poisoning, so everyone did not stay in the cell. But in fact, after so much time has passed, and after the cell door has been opened for so long, even if the poisonous gas is not fatal. After all, Zhao Xuanji and Du Tiecheng had come in at the beginning, although the time was very short.

At this time, another police officer entered, wearing gas masks and searching carefully, and brought in two powerful flashlights. With a bright light and a search for a target, the two policemen soon found something unusual in the gloomy little house—some broken glass shards.

It's as thin as a light bulb, or like a small vial like an injection in a hospital, but much bigger than that. Such a container is at least the size of a ping-pong ball, and of course it can hold more than enough volatile objects.

Obviously, this thing should have been thrown in with poison. After shattering on the ground, it emitted a deadly poison, poisoning Lu Yiqian to death.