When everyone reported to their homes, Du Xiaoyin looked at the names written on the display board and said, "Is there any rule to this?" ”

Mo Yan said: "This is just the first step, and there is no law yet, but as long as it is a human factor, there must be a law, which no one can avoid." ”

Du Xiaoyin said: "What should I do next?" ”

Mo Yan didn't answer her question, but clapped his hands, attracted everyone's attention, and said, "Everyone, can anyone tell me when this nightmare began?" ”

When everyone heard this, they immediately replied enthusiastically, although the time was different, but the approximate time should be three months ago.

Mo Yan pressed his hand down, signaled everyone to be quiet, and said, "If I want to ask you about the incident three months ago, I'm afraid few people can remember it, right?" So...... If I ask you, in the past half a month, there have been nightmares on those nights, can you remember? ”

That Aunt Zhang Sulan raised her hand and said, "Young man, we are a lot older, how can we have that good memory?" If you ask me about a week's events, I'll remember it clearly. ”

Mo Yan smiled and said, "Okay, today is Saturday, so let's start with last Saturday." ”

After a slight pause, he raised his hand and said, "Now, please raise your hand if you had a nightmare last Saturday night." ”

As he asked, fifteen or sixteen people suddenly raised their hands, and two or three seconds later, three more people remembered the events of last Saturday and then raised their hands.

Mo Yan said to Lin Gaojun: "Please count the number of people and then write it down." ”

Lin Gaojun knew that he was a layman, so he nodded happily.

Mo Yan said to these residents who raised their hands: "Everyone, please report your home again, I can make a record." ”

With everyone's answers, Mo Yan found out the door number of the floor where these people were on the drawing and drew a triangle.

"Okay, thank you for your cooperation, you can put your hands down. Now, please raise your hand for those who had nightmares last Sunday! ”

Mo Yan held the pen and was busy, marking all the people who had nightmares from last Saturday to this Friday.

A quarter of an hour later, he drew the last circle on the drawing.

Then he took a step back, looked at the various graphics marked on the drawing, and asked Du Xiaoyin, "Do you see what's coming?" ”

The marks on the drawings are different, whether they are triangles, circles, or pentagrams......

Du Xiaoyin didn't answer in a hurry, but took the data recorded by Lin Gaojun, and after looking at it carefully, he said: "Judging from the number of people who have nightmares every day, it is obviously regular. For seven days, the number of people who were plagued by nightmares every day ranged from 12 at a minimum to 20 at the highest. It can be seen that there is a general range of this number. If there is a human factor in it, then it can be seen that the mastermind behind the scenes is deliberately controlling the number of people, of course, it can also be understood that his ability limits the number of people, and twenty people is his maximum. ”

At this time, Lin Gaojun interjected: "Officer Du, you are mistaken, the day with the smallest number of people was this Tuesday, and there were only four people. ”

Du Xiaoyin smiled slightly and said, "This is the most noteworthy place...... If I'm not mistaken, it rained on Tuesday and it lasted all day! ”

Lin Gaojun suddenly realized and said, "Ah, I remembered, there was indeed rain on Tuesday." In this way, the human factor in this is already obvious! ”

Mo Yan gave Du Xiaoyin a thumbs up and said, "Amazing!" ”

Du Xiaoyin glanced at him and said, "Your compliment is very insincere, as if the kindergarten teacher is encouraging the child who answers that one plus one equals two." ”

After a slight pause, he said, "Okay, let's talk about your discovery." ”

She knew that Mo Yan made various marks on the drawings and must have a purpose.

Mo Yan casually connected all the triangles on the drawings and said, "You see, this is the resident who became ill last Saturday, there are a total of eighteen people, and their addresses are not concentrated, but spread all over the community. What does it mean to look at the residents represented by these circles, who were plagued by nightmares on the same day, but whose addresses were equally scattered? ”

Lin Gaojun next to him was confused when he heard it, and said in his heart, the more scattered he is, the more irregular there is to speak of, this guy doesn't even know this truth, right?

Du Xiaoyin pondered for a moment, his eyes suddenly lit up, and said, "It shows that this black hand is very mobile and is not limited to one location." Of course, it is also possible that these residents have been to the same place and met the same people on the same day! If it's the latter, it's most likely a supermarket or a mall! ”

Mo Yan smiled: "You're right...... But I'm not inclined to the latter, because the pattern is too obvious. Still, it's a good idea, and we can try to chase it down. But if it's the former, I ask you, who is very mobile and can persevere in the neighborhood every day? ”

Du Xiaoyin said without thinking: "There are many such people, idle people, retired old men and old ladies, and even those who come from outside to deliver newspapers and milkmen and some part-time workers. ”

Mo Yan nodded and said, "Very well, so far, we have drawn two conclusions from the identity, age, address, and time of these residents' dreams. First, the case was indeed manipulated. Secondly, we've locked down the guy's approximate identity......"

Du Xiaoyin said: "Wait, your general identity is too wide, right?" It includes almost the entire community, the employees of supermarkets and shopping malls, and even some people outside the community. ”

Mo Yan smiled slightly and said, "For you, this scope is indeed very wide, but for me, it is actually a matter of asking a few words." ”

Ask a few words about the matter?

Du Xiaoyin frowned slightly, thinking about what Mo Yan meant by this.

That's right, she agrees with Mo Yan's point of view, that is, she basically determined the factors that led to this case, as well as the approximate identity of the mastermind behind the scenes. She is sure that as long as she gives herself time and manpower, she will definitely be able to find out this black hand after investigation and investigation. For the police, the biggest fear is not how suspenseful the case is, but the fear of having no clue and a goal. Once you have a clue and a goal, clues can always be dug out slowly, and with clues, solving the case is inevitable.

At this time, because of Mo Yan, she has found the clue and goal, and in her opinion, the rest is to need time to investigate step by step. This time may be very long, or it may be very short, but no matter how long it is, it is impossible to draw conclusions by asking a few words as Mo Yan said!

She really couldn't think of Mo Yan pondering to do this, so she bit her lip and asked, "What is your idea?" ”

Mo Yan smiled but did not answer.

Du Xiaoyin said: "Actually, I think the four residents who fell ill on Tuesday are the best breakthrough, and if you find someone who comes into contact with them, you should be able to lock the target." ”

Mo Yan smiled: "That's true...... When they go out, they may have come into contact with the same security guard and doorman, with the same vegetable vendor in the same market, or with a salesperson in the same shopping mall. But it still takes a lot of time to investigate, right? Today's event is today, at most twenty minutes, I can lock down the identity of the person behind the scenes, so why bother to go far? ”

When these words came out, even Zhang Xielin, who had been watching coldly, was not calm, and said, "Mo Yan, are you kidding?" ”

He has been watching from the sidelines until now, and his main energy is observing Mo Yan, but at the same time, he is also thinking about this case in his heart.

To be honest, he also admires Mo Yan for deducing the case to the current level through this series of seemingly insipid methods. Mo Yan's technique can be described as extremely simple, without any mystery at all, but it is such a prosaic technique, no one could have thought of it in advance. You know, there's a doctor of criminal psychology, a veteran investigator, and a former DHS agent himself!

There is no doubt that Zhang Xielin admires Mo Yan, but he, like Du Xiaoyin, is deeply skeptical of Mo Yan's 'wild words' who are confident that he can solve the problem in twenty minutes.

If this guy could really find the mastermind behind it in twenty minutes, I would have lived to be a dog for half my life...... Zhang Xielin thought self-deprecatingly.

Mo Yan saw that everyone was in disbelief, and said with a smile: "You have ignored a very important issue, that is, the magic of human deep memory. To put it simply, these residents must have come into contact with someone and caused the nightmare. From the bewilderment and horror of these inhabitants, we can learn that this contact should be rather prosaic and not easily attract attention and vigilance. But the human brain is amazing, it has its own defense mechanism, some words and deeds that hurt oneself may be ignored on the surface, but in the subconscious, it will be remembered very clearly! ”

After a slight pause, he said lightly: "Therefore, through questioning, it is possible to get the answer directly." Of course, it takes a little skill! ”

As he spoke, he took a few steps forward, faced the residents below again, clapped his hands, and said loudly: "Everyone, you still have the pen and paper in your hands, right?" ”

"Here, young man......" Aunt Zhang said, "I said, what are you muttering there?" Auntie is still waiting for you to solve this case......"

Mo Yan smiled: "Don't worry, aunt, I still have a few questions for you to answer." After that, I can't guarantee that you won't have nightmares tonight, but I can promise you that you will get a good night's sleep tomorrow night! ”

After saying this, the residents below suddenly became excited and raised their hands to ask questions......

Seeing that the conference room was noisy, Aunt Zhang stood up and said, "What do I say, you old guys and broken mouths?" Shut it all up...... The handsome guy is still waiting to do the right thing, don't make noise with others, if you run people away, you can cry! ”

Two minutes later, the conference room finally fell silent, and everyone looked at Mo Yan with anticipation on their faces.

Mo Yan smiled, raised the pen in his hand, and said, "Everyone, I need you to concentrate on this pen in my hand......"

He waved the pen in his hand slightly, his tone became more and more calm, and said, "Okay, everyone's eyes have been focused on this pen, now, please relax your muscles and take a deep breath...... Yes, that's it, exhale, inhale, exhale, inhale. Okay, the breathing can gradually calm down...... Now, you will feel that your brain is quiet now, without any distractions......"

Seeing Mo Yan gently swing the pen in his hand, Zhang Xielin asked Du Xiaoyin softly: "This should be hypnotism, right?" ”

Du Xiaoyin nodded and said softly: "It should be, at least on the surface." ”

Zhang Xielin asked again: "He still knows hypnosis?" ”

Du Xiaoyin thought for a while and said with a wry smile: "This guy knows a lot of things, to be honest, I don't know what he can't." ”

Zhang Xielin had a rare humor and said: "At least he won't have children......"

(To be continued)