Criminal Investigation Notes

"Recently, a vicious serial homicide case occurred in Nancheng against women who returned at night. The murderer has killed three consecutive female victims: Li, Zhang, and Wang. The criminals are very cruel. The current police The murderer is being investigated and arrested. The general public must pay attention to their personal safety and avoid going out at night and returning late. According to the testimony of eyewitnesses, the police have drawn simulated portraits of the suspect, and informed citizens are also asked to call the report if they have clues. hotline:……"

The day after the third case occurred, this announcement was published on the network platform and broadcast by Nancheng TV. Subsequently, Zhuang Yi accepted an exclusive interview and broadcast it on major radio stations.

On the third day after the third case, in a small fast-food restaurant next to a demolished building in Nancheng City, the interview was broadcast on TV.

This fast food restaurant is called Ruyi Restaurant, which is said to be a restaurant, with only eight tables in total.

It has been a good year since the small restaurant has opened here. The taste is moderate and the price is fair. So the business is not bad, but the environment is limited and the owner has no ambitions, so he just used it to support his family without expanding.

On a slightly yellowed wall in the shop, full of price tags were posted, and an old-fashioned TV set was hung in the corner next to it.

"The recent vicious serial murders in this city have attracted the attention of the public. Here, I would like to remind everyone in front of the TV to learn about the situation through the police platform and not to spread rumors."

The host in a black suit said that he turned around and looked at the guests beside him: "Today, our Nancheng rule of law frontline program is very fortunate to invite Professor Zhuang Yi, the police consultant in this case, to interview. Hello Professor Zhuang The general public is very concerned about the current investigation progress. Can you tell us some information that can be revealed in this case?"

Sitting aside, Zhuang Yi helped his glasses, his expression was serious and serious, "As for this case, I believe everyone has learned the most basic situation and the portrait of the suspect through the announcement on the police platform. Currently known, the suspect It is aimed at women who return at night..."

...

"There is a saying on the Internet that the police, based on the profiling and analysis of the murderer, and sorting out various clues at the scene of the crime, are suspected that there may be two criminal suspects who are cooperating in the crime."

"Uh, there is such a hypothesis," Zhuang Yi nodded, "but this is just a mental model analysis based on the scene."

"Then can you give us a detailed analysis, if there are really two murderers, these two murderers may have roles in the case."

Zhuang Yidao: "One of these two murderers is more violent and frantic. He is a male, aged about 25. He used violent means to attack the attacked women. I personally gave him a code name, Ye Xiao; A gentler, a little older, may be coerced. He usually shows up after the murder and helps the victim to arrange clothes and makeup. I think this collaborator has some conscience. The code name I give him is Night butterfly."

“I’m here to explain to the audience friends that the night owl is another name for the owl, which is also the familiar owl. In fact, the owl is a nocturnal carnivore and also very fierce. This name is very appropriate. And the night butterfly is the butterfly at night. , There is some mystery. The police released the portrait of the male suspect based on the confession of the eyewitness, and asked the audience in front of the TV to provide more clues."

...

"Professor Zhuang, how long do you think the police will be able to catch them? Or let me ask another way, do you think the police can find the murderer before the next victim appears?"

Zhuang Yi helped his glasses again: "This is more difficult to say. The police are currently investigating. I can't say the specific time. I can only say that everyone is working hard. Of course, everyone hopes that there will be no new ones. The victim appeared."

"Then the last question, maybe the murderer is watching our program together in front of the TV, then what kind of message would you convey to the murderer through our program?"

"The French Open is full of negligence without omission. I hope that the criminals in this case can stop the killing and return to the case as soon as possible.

"Thank you very much, Professor Zhuang, for being able to record our program. I wish you all night snacks every day without encountering Ye Xiao. There is only one life. Please pay attention to safety. Female friends must be careful at night and avoid going out alone..."

In a small restaurant, a young couple sitting at table No. 4 watched the show on TV. The boys began to complain: "According to me, there is nothing safe to go out."

The girl grabbed the dish in front of her with chopsticks: "You are a straight man thinking, just like the woman who is not allowed to ride a ride after 8 o'clock, isn't it that male criminals can reduce the occurrence of this kind of things by taking care of themselves?" I watched TV, and the show continued, "However, I didn't know it had happened if I hadn't come to eat and put this on. Old man and old lady watch TV."

The boy slandered: "Isn't it because you only watch with your phone and computer every day? You don't care about current affairs news at all?"

The girl called injustice: "I didn't see it on Weibo either. In the final analysis, this matter is still too far from life."

"It's all on the hot search, but haven't seen it? You are busy chasing stars every day, right." The boy said here, the two of them had almost eaten their meals, and shouted: "The boss pays."

Alas, the boss pointed: "38 yuan, the payment code is posted on the table."

After the couple went out, the small restaurant became quieter.

The rule of law program was finally finished, and the familiar ending music began to sound. A young man sitting at table 2 in the corner of the hotel stood up, took out a few crumpled notes from his pocket, and whispered: "Boss, money It's on the table." His voice was hoarse, and it sounded like he was rubbing sandpaper.

The boss was busy calculating the Ele.me order at the counter, and said "Oh".

He knew this guest and was a frequent visitor to a small restaurant. He often sat in that position. He ordered an egg fried rice when he came in. He kept his head down and ate his head when he came up. He paid to leave after eating.

I don’t know if it’s sick. The guest’s throat is bad, his voice is hoarse, and his breathing is heavy. He looks like a young man, but listens to his voice like an old man.

The young man bought the bill, put on his hat, lowered the brim, and walked out from the door with his pockets in his hands.

Two policemen in police uniforms walked in from the door of the hotel, and they almost passed the young man.They came to the counter: "Boss, have you heard about the latest case?"

Since the facts of the case were reported, the police stations of the various sub-bureaus have received orders from the city bureau to coordinate investigations. All police and co-police officers in the area where the case occurred were mobilized to pull nets for restaurants, shops, companies, and neighborhood committees in the area In the evening, there are patrol cars to patrol at designated locations.

"Hey, I heard it, I heard it, it's changeable." The boss hurriedly rubbed his hands to greet him.

"Not yet, where is it so fast? Isn't it working overtime every day?" A co-policeman spoke and took out a wanted poster with a portrait of Song Wen painted on it. "You have encountered something like this here. person?"

The boss frowned and looked at the portrait. He felt familiar, but he couldn't remember where he had seen it.

"No, I haven't seen it." Finally, he shook his head and replied like self-hypnosis, "Don't worry, I have never been a perverted murderer here, or how to do business."

"Be careful, then." Another assistant policeman handed over a poster, "Here you are, post one in front of the counter. What if someone knows it."

"Good, good." The boss nodded and pasted the poster with double-sided tape in front of the counter.

The police officer said: "If you see it later, remember to call the reporting hotline for clues. It seems that there is a bonus."

"Okay, you guys have worked hard." The boss sent the two police officers out, turned around and walked to Table 2 to pick up the banknotes placed on it, and whispered, "There are still young people who use cash every day. ."

In the Nancheng City Bureau at this time, Gu Bureau specially asked people to clean up the empty room next to the director's office. As a special office for this case, various clue boards were pasted on the wall, and all the materials were stacked in a pile. , Put it aside for easy viewing.In order to investigate this case, several elites in the Nancheng City Bureau can be said to have tried their best.

The broadcast effect of the program was very good. Soon, I received many hotlines for reporting, but there is not much valuable information.

Just after lunch, the report hotline in front of Tian Ming rang again, and he picked up the microphone as soon as possible: "Hello, hello, this is Nancheng City Bureau, do you have any information about recent cases? Clues?"

"...Do you suspect that the next door to your group rent is like the murderer? He spied on your bath?" Tian Ming frowned and repeated, "Uh, that... the murderer seems to be temporarily not interested in men."

The other party said a few more words, Tian Ming nodded: "Well, the height of 185 may not match the murderer... But we will contact our colleagues at the police station nearby and take a look. Please leave us your address and contact information? "

"What? No need to go over?" Tian Ming wanted to say something, the phone became a disconnected tone, "Hey, hang up."

Song Wen glanced at Tian Ming, who was dejected, and as expected, the call was falsely reported again.The point is that many such calls have already been received.

The Tian team angrily opened the record book and drew a few strokes on it: "The seventeenth report hotline is not..."

"It's better than the previous ones. I didn't let you take a trip. At least it wasn't until the past that I realized it was completely irrelevant." Fu Linjiang said, "We can't just sit and wait like this. What else can we do besides these?"

It has been three days since the incident occurred. Except for the report calls from time to time, they received no new clues, and the whole city was calm as water.For the elites of the criminal police team, it is too passive now.Moreover, every day when time passed, they felt that the sword hanging over their heads fell a point.

Lu Siyu sat aside and carefully checked the site survey report of the third case. This was the fourth time he had tossed and turned. He raised his head from the data pile and looked at Song Wen.

Song Wen felt that the more he waited, the more panicked the people in this room, and sighed to stand up and call the shots: "What about Professor Zhuang? Why haven't you seen him recently?"

Tian Ming said, "Professor Zhuang, who is very busy, recently recorded a program, but he said that he will come to our side later. If you make progress and encounter difficulties, you can contact him."

Zhang Ziqi said: "Well, I heard him say that he was unwilling to talk about the case on the show. It was not convenient to reveal the details of the investigation. I thought it was true, but after the approval of the leader, I went on the show and did not say anything less."

Song Wen raised his head and asked, "Make sure the portrait has been posted, right?"

Fu Linjiang said: "Yes, police officers from various police stations are patrolling the streets. The portraits of this case are distributed to various neighborhood committees and companies. Even the small stalls have not been spared, but so far there is no effective clue. This murderer doesn’t always live in a vacuum. He has no relatives or friends, and no passersby. He has to come out at night to commit crimes, right?”

Song Wen thought for a while and said: "We only have one eyewitness, and we don't have photos or cameras. Maybe the features are not obvious enough." He is absolutely confident in his painting skills, but the conditions are limited. The head of the suspect does not necessarily help them catch the murderer.

Lu Siyu whispered from the side: "People don't have an impression of people they have met by chance, and common people have a misconception. They think that people they know cannot be criminals."

The murderer may be in the blind spot of people's observation.

There are some people around everyone, who always reminds me of the classmates who have poor grades in the corner of the class, and the colleagues who are difficult to mention in the office. They are like transparent people. They are around people every day, but the key is At that time, I couldn't even remember the name.

Fu Linjiang nodded in agreement: "This murderer must be quiet enough to not attract attention."

Zhang Ziqi thought for a while and asked: "Can we perform fingerprint screening on males of the right age in the entire region?"

Tian Ming said: "Do you know how many men of the right age live in this city? Moreover, the city is so mobile. With our police force, we may not be able to achieve results after a few months of investment..."

Song Wen thought for a while and suggested: "But we really can't wait any longer, or set up bait. It is better to arrange some policewomen to walk around at night and cooperate with the inspection than to sit and wait."

Tian Ming became interested when he heard these words: "Oh, I like this action, and wait and see. But where can we fortify to hit the murderer?"

Song Wen looked at the Nancheng district map hung on the wall: "According to the circle hypothesis theory, we know the scope of the murderer's activities. Every time he commits a crime again, he will avoid the place where he once committed the crime. For a prosperous location, we subdivided the map, divided it into arrays, set up some ambushes. Then let the policewoman walk around with the communicator."

"Will the murderer take the bait?" Fu Linjiang was a little worried.

Song Wendao: "Not necessarily, but there is no better way now. Try to find out if it works. In short, strengthening night patrols can make us a little closer to the murderer."