I'm also very happy with this decision, because it means that I can go to the investigation again.

After getting the concession, I took Xiao Liu and Xiaokang to the scene of the crime. After the two of them joined, they soon found a fingerprint on a bed, and on the board.

As for the lock, in fact, this lock was obviously forcibly opened.

I can't figure out why Zhou Jindong can't see it?! But of course, I didn't say anything. After all, Chen Fang has already said that they will check their own.

After reading the traces on the lock, I couldn't help but sigh with emotion: "It seems that this murderer is really versatile!" ”

Hearing me say this, Xiao Liu, who was standing on the right behind me, immediately asked, "Officer Lu, why do you say that?" ”

"What I know so far is that the murderer is a very Sven person. Judging from his teeth, he should not be an old man, and he not only has skills such as grappling at the same time, but also can pick locks, isn't it versatile? ”

"Yes." Xiao Liu nodded.

At this time, Xiaokang questioned: "I really don't know why the murderer is so clear, there is no monitoring in these places." If there is surveillance, as soon as we take a picture of his face, we can just arrest him. ”

He seemed to be complaining, but it reminded me of a crucial point: in fact, what he said was not wrong at all!

Why did the murderer know that there was no surveillance in these places?

I don't think he knows, but there are two possibilities: 1. It may be because he has some kind of skill to avoid surveillance cameras, but the probability is very small; 2. It is possible that in fact, he actually stepped on a little bit in the community with surveillance cameras, and then specifically picked these communities with few surveillance cameras to commit crimes.

The second possibility is normal, logical, and probable.

So I was in the community near the scene of the crime, and the investigator monitored it, and I felt that the murderer had been to such a community before. It's just that he found out that there is surveillance in these communities, so he didn't commit a crime, and the truth should be like this.

But after the investigation, no suspicious people were found!

So why is that? I don't think my inference will be wrong, and Xiao Liu and Xiaokang think the same way.

Could it be that the murderer can still be invisible?

After returning home, I discussed this matter with Zheng Li.

Zheng Li also thinks that my second inference before, I feel that the truth should be like that. But how did that person manage to avoid surveillance while observing it? Under normal circumstances, when he goes to observe the surveillance, he will already be filmed by the camera!

I've been thinking about this all the time, so I'm still thinking about it when I dream at night.

But I couldn't figure it out, so the case was shelved for a while, and I couldn't investigate it at all.

It is said that Zhou Jindong's side hoped that the murderer was committing a crime, and then exposed more clues, thinking that it would be easier to catch the murderer.

In fact, this thing is whimsical and despicable.

But the case on our side is also suspended.

In the next few days, I don't know what happened to the murderer, but he really didn't commit a crime. Xiao Liu even joked: "Officer Lu, shouldn't he know that you are back, so he doesn't dare to commit a crime, right?" ”

This possibility is extremely small, or even zero. Because he realized that he still had loopholes, he didn't dare to commit crimes, right?

But he was a cautious man, so it was possible to have a premonition and stop sinning.

Maybe one day he happened to see me investigating the case, and knew that I was going to investigate him, so I didn't dare to commit a crime. After all, there is nothing to blame, I am much more diligent than Zhou Jindong's team.

The case was put on hold until the fifth day later.

When I returned to the police station that day, I happened to see Ni Jiaxin holding a box in her hand, and she looked very happy.

I asked curiously, "What's wrong?" It's like picking up a treasure! ”

"It's not that I found a treasure, it's that my treasure has arrived. Haha, my iPad has arrived, and eating chicken in the future can be equivalent to turning on the double mirror. ”

Hearing this, I suddenly thought of something, and I kept staring intently at her express box.

She hurriedly moved the express box to the side, then frowned, and said unhappily: "Officer Lu, don't you want it too?" If you want, ask your daughter-in-law to buy it for you. ”

"Courier?" I was asking myself what I was asking.

Ni Jiaxin nodded affirmatively and replied, "That's right! ”

I said two more words: "Takeaway? ”

Ni Jiaxin was confused by me, and couldn't help frowning secretly, and asked in surprise, "Officer Lu, what are you talking about?" Hurry up and take out for a while, I'm about to be confused by you! I'm a courier! It's not a takeaway! ”

I licked my lips and asked, "Under normal circumstances, do you pay attention to those couriers and delivery people?" ”

"Of course you will be very handsome! I think it's a pity, so handsome, if it's good to be my boyfriend, why do you have to send a courier in the sun? However, in general, the takeaway brother is more handsome. But they usually cover half of their faces, so they can't see clearly! What's wrong? ”

When I heard the last few sentences, I suddenly realized that I had missed something!

So I quickly convened a meeting.

At the meeting, I Pan Ran realized: "Because of our normal logic, for the delivery staff and the delivery staff, we acquiesce to their existence in any place, and will not be suspicious of them. But as Ni Jiaxin said, some delivery workers will cover half of their faces, and it doesn't matter if they use masks or whatever.

The important thing is that at times like this, we are in the light and they are in the dark. They know everything about us, and we really don't know anything about them. Therefore, the murderer may be engaged in the takeaway or express delivery industry. ”

Xiaokang also understood, and said: "I see, I'll just say it!" Why does he know so much about whether there is monitoring in those communities, it turns out that he is running to those places every day! In this case, we will now find out all the people who deliver food and express delivery in the area, exclude some of them from the physical signs, and then investigate. ”

I disagreed, saying, "In that case, the suspect is too big a target, and it's like looking for a needle in a haystack." So let's not rush for the time being, let's hold it down first. Also, this important news, a few of you don't want to reveal it, you know? ”

"Yes." Several of them answered.

For more than a week, the killer did not commit any more crimes.