Criminal Investigation Files

After questioning the witnesses, Song Wen and Lu Siyu went to the forensic office on the second floor of the Municipal Bureau. Recently, for this troublesome serial murder case, the forensic office also started working overtime, especially for the case that just happened this morning. By afternoon, the autopsy report was out.

Now Lin Xiuran and other forensic doctors have gone to the police, and only Duan Wu stays to look after the house.

Song Wen didn't go out either, and self-sufficiently went to collect the autopsy reports of the three cases and lined them up together.Then open the photos and compare them one by one.He had already seen these pictures and files during the meeting in the morning, and he planned to read them carefully again at this time.

Lu Siyu also picked up the materials of the first case, and sat quietly watching.

I just had dinner at this point in the Dragon Boat Festival, and I ate a bowl of pork liver noodles beside me, and the whole forensic room was filled with the smell of food.He watched Song Wen and Lu Siyu intently, and moved a stool to sit beside him: "Captain Song, I've always been interested in your criminal police's ability to solve cases. Your team has always solved cases quickly and accurately, why don't you teach me too... "

Song Wen didn't raise his head, and continued to sort out the materials in his hands, saying: "It's not that difficult, you can try to apply with Lin Ge later, and see if he lets you go."

"Oh, I was just joking." Duan Wu looked carefully while talking, making sure that Lin Xiuran did not come back suddenly, and then continued, "Captain Song, these victims died of suffocation. The cause of death is simple and clear. As for the corpse, Director Lin personally inspected it, and the field team has gone through these materials many times before, and the corners are all wrinkled, and nothing new can be found."

Song Wen flipped through the documents: "If you can't see anything, it's because he's stupid."

"No... what I mean is, will you be able to solve the case by reading these again?" Duan Wu asked with a question in his heart.

Song Wen finally looked up at him, "Do you know what it means to read a book a hundred times and see for yourself? I'm looking at the information now because we haven't been to the scene of the first two cases. If we have been to the scene, many scenes The information on the case was printed in my mind, and now I can only rely on the materials to make up lessons. If you want to solve the case, you have to memorize these basic facts."

Speaking of this, Song Wen touched Lu Siyu on the side, and his voice subconsciously lowered an octave, and became softer: "Look at this photo, I think the first victim and the other two Not the same."

Lu Siyu turned his head to look, and Duan Wu also moved his head curiously.

It was a detailed picture of the scars on the neck of the first victim. Song Wen pointed to the scars on the victim's neck.The pale neck was swollen, with a large number of red bruises, and it looked worse than the second and third.

"Well, the reason is that the body of the first victim was placed for two days, and it was already swollen and rotten when we arrived..."

Before Duan Wu finished speaking, he was interrupted by Lu Siyu.He took a closer look at the photo, nodded to Song Wen and said, "That's right. The first case is indeed different."

Duan Wu suddenly felt his face hurt from being beaten, but he couldn't see anything unusual when he opened his eyes wide: "This...how is it different?"

Lu Siyu explained: "In general, the strangle marks are deeper, wider, and more uniform than the other two. Such scars may not be caused by one strangulation, but multiple strangulations. It’s just that the strength was not strong each time, and the corpse was already swollen at that time, so it was not obvious.”

In other words, those red marks are not one or two, but multiple, connected together.The resulting scars are wider and more pronounced.

Duan Wu looked through the other two files, and sure enough, as Song Wen said, he didn't expect these two people to find something in the previous files so quickly, and he choked out a compliment: "Captain Song, your observation The strength is really good..."

Song Wen didn't have time to return Duan Wu's compliments, and discussed the case with Lu Siyu: "That means that the first victim was probably not strangled to death once, but may have been strangled several times until she fell into a coma. As a toy, Le passed out and played with it for a while, and then she woke up and committed the crime again. There may be three or four such behaviors. Relatively speaking, the second and third cases are much more agile."

This way of killing is undoubtedly long and tormenting. The victim is repeatedly hurt, extremely desperate, unable to break free, as if in an endless hell.It may be more painful than killing her directly.

"It may not be intentional." Lu Siyu blinked, bit his nails and deduced, "Maybe, he didn't make up his mind to kill the victim at the beginning; maybe, he was enjoying this kind of cat playing with mouse." Perhaps, this first female victim reminded him of someone who induced him to commit the crime; perhaps, there are other reasons that we don't know now."

This first case is really special. What kind of cruel and perverted person is this murderer?Lu Siyu became more and more interested in him.He closed the file and said, "I want to visit the places where the previous two incidents took place."

Song Wen and Lu Siyu asked Fu Linjiang to stay at the police station, and they drove out in a police car. The police car drove all the way, and first arrived at the place where the first woman was killed, which was by the small river in Lianhuatang.The surrounding greenery is very good. It is said to be a river, but it is just a small ditch two meters wide.

Several months have passed now, and the traces by the river have long been wiped away by the wind, sun, and rain. People pass by from time to time during the day, and the birds are singing and the flowers are fragrant.

When we arrived at the location, Song Wen took out the photos of the scene and compared them before he dared to confirm that it was here.

The two circled around, and Song Wen asked Lu Siyu, "Did you find anything?"

Lu Siyu licked his lips: "I'm thinking about a question, why is the first victim too old..." He pondered for a moment, recorded it in his notebook, and asked himself, "Maybe... it was with the murderer. The Oedipus in the subconscious is related."

Then Lu Siyu made a mark.The two people simply simulated at the scene, calculated the time and route of the crime, and then rushed directly to the second crime scene. The distance between the two places is not too close, nor too far away. It took two 10 minutes.

Then came the third time. Song Wen and the others believed that the third attack should be in the small park behind Zeng Minyi's community. This place happened last night. They also found physical evidence in the afternoon. At this time The staff just left.There were still some messy fighting marks on the ground, and one or two spots of blood, all of which were consistent with Zeng Minyi's testimony.

Finally, there is the fourth place, which is the place where Wang Xiaopei was killed. They visited this place in the morning.

Four victims, four crime locations.

Song Wen's car followed the murderer around the city, and by the time it was done, it was almost six o'clock in the afternoon.

The two returned to the car, Song Wen started the drive: "Let's go home, you didn't have a good rest this morning."

Lu Siyu hummed, and looked down at the map to study, with a very focused expression: "The murderer should be familiar with this urban area and often walks around these places, so the locations chosen seem random, but in fact they are all places that will appear at night. In a very quiet place, he may have been lurking nearby for a while, waiting for a victim who fits his preferences to enter his attack range."

Then Lu Siyu looked for the murderer's starting point between several points: "Assuming that the murderer started from home, then he needs to go back and forth, especially yesterday, when he failed to commit the crime for the first time after eleven o'clock in the evening, and then The wound bitten by the dog was bandaged, and he appeared in another place and attacked the victim at three o'clock in the morning. I am thinking about what means of transportation the murderer used to move between these places."

Song Wen thought for a while: "From the description of the previous witnesses, the murderer has calluses on his hands, and he is obviously a person engaged in manual labor. His clothes are also very ordinary... I tend to think that he does not have a car or other means of transportation."

Lu Siyu nodded in agreement: "Tian Ming searched the surveillance video for a long time before, if the murderer was driving or taking a taxi, he would be found and leave traces...so the rest, bicycles, night shift buses... were bitten by dogs After the injury, based on the size of the wound, it can be inferred that he was seriously injured, and in this case, it will be difficult for him to move, and walking and cycling can basically be ruled out.”

He frowned when he said this, "And his co-perpetrator who is yet to be identified, the theory that Zhuang Yi said before, I always feel that some parts are reasonable, and I think there are some problems."

Song Wen continued to drive: "Follow these clues to investigate first. I think the police force of the Municipal Bureau may not be enough. Later, I will apply with Bureau Gu to inspect the nearby areas."

He thought for a while and then said, "Need to call the monitoring of the night bus, and pay attention to the nearby 24-hour clinic. It takes time to check and visit, and there may be some results. However, for the night bus, the camera is not very clear and there are blind spots, so we can only check Check."

Lu Siyu drew another circle on the map. The murderer is obviously not a "roaming attacker", but a "waiting hunter". According to the "Crime Circle Hypothesis Theory", the murderer has a high probability of living in this area. within range.

The so-called criminal circle refers to the circle formed at one time by taking the straight-line distance connecting the two cases with the farthest geographic location as the diameter in a series of cases, and the point of the line as the center of the circle.

And within this range, there is a demolition building, several shantytowns, a bus terminal, several residential areas, several construction sites, a very large wholesale farmers' market, and the only wharf in Nancheng City.

The range is still too large...

Song Wen was driving the car, while Lu Siyu was pondering over the case, and looked sideways out of the window, the two fell silent for a while.

Dusk is approaching outside the window, which is the peak time for get off work and meals. Adults leave work, children leave school, old people prepare square dances, ordinary people enjoy the fun of life, and the whole city is peaceful.

Many people don't know that there is a murderer in this city now.He ate the same food, drank the same water, and breathed the same air as them.

He may be hiding in a certain corner of the city, he may be a fruit vendor on the street, a construction worker carrying steel, or a man sitting on the side of the road.

Three women have already died at his hands, and soon there may be more victims...

Because of the case, both of them were very preoccupied, and the air pressure was too low, Song Wen couldn't help but ask Lu Siyu, "Then what... what do you have for dinner..."

"See what you want to eat?" Lu Siyu said casually, "Red stewed beef? Gastrodia chicken soup? Panlong eggplant? Hot spring egg pork bone udon noodles?"

"It's all right." Song Wen nodded quickly, and his saliva was about to come down. He added: "The case hasn't been solved yet, so don't work too hard. Just do something simple. Today Gu Ju sent a message, In the evening, Zhu Xiao’s information will come over, and I have to check it out.” He paused and then said, “Anyway, as long as it’s made by you, I like to eat it.”

Lu Siyu hummed: "When the case is solved later..."

As soon as the two of them drove the police car into Lu Siyu's community, Fu Linjiang's phone rang. Song Wen pressed the release button, and Fu Linjiang's voice came out: "Captain Song, we have some problems here. The family members of the last deceased , that is, Wang Xiaopei's parents, just identified the body in the afternoon, and then...they told the reporter the news of their daughter's murder, and a group of media rushed in here just now, wanting to interview this case." He paused, "And, What's worse, someone posted the statement that the police suspected that there were two murderers on the Internet..."

Song Wen frowned. Those are still under investigation, especially the theory that there are multiple murderers. Although there is the theory of Zhouyi now, and there is a vague testimony of a witness, it still cannot be used as the basis for judging the case. How can this matter let outsiders Does anyone know?

Song Wen asked: "Then how did Ju Ju deal with it?"

"Seeing that things can't be sealed, he just called us for a meeting in the bureau, and Zhuang Yi was there. We had an urgent discussion at the meeting, and then Gu Bureau thought of a way. He heard that Zhuang Yi will be recording soon. A program. On the program, I want Zhuang Yi to disclose the case information and profile to the public, and publish the portrait of the criminal.”

Song Wen intuitively felt that this action was too risky: "This may change the case. It will also cause public panic."

Fu Linjiang said: "Yes, Professor Zhuang disagreed at first. He said that his previous analysis was just a theory, and there is no more evidence to support it. It should not be made public just because of some remarks."

Song Wen also understood this way of thinking, and asked again: "And then?"

"Gu Ju said that there is a lot of noise on the Internet now, and the media already know it. Instead of letting the media write scribbles, it is better to take the initiative to tell them all about the situation. Public criminal profiling is also a common method of criminal investigation at home and abroad. The media's disclosure will put pressure on the murderer. There are some cases in China that have done this before. For example, the murder case of boys’ dormitory that shocked the whole country, and the murder case of a college student’s mother were disclosed to the media very early. Some positives."

"Did Professor Zhuang agree?"

"I was finally persuaded by Gu Ju." Fu Linjiang said again, "In short, it is basically settled now, and the superiors have also given instructions. Gu Ju asked me to say hello to you."

Song Wen hummed, politely said a few words and hung up the phone.

"Now that the situation has escalated, it's not an option to hide it." Lu Siyu whispered from the side, the more evasive at this time, the more counterproductive, "Since you can't stop it, let them go, and like this It is also a good thing to do, and the public can be vigilant, which can also reduce the number of murders."

Song Wendao: "I understand that disclosing the information will benefit the investigation. You can open a reporting hotline, set a reward, and see if there are more clues. But I am still afraid of stimulating the murderer."

Overall, there are pros and cons to this thing.Just making the news public will increase many unstable factors.So far it's just a gamble.

"You don't have to worry too much." Lu Siyu said, "If the news is not made public, the murderer won't stop killing. After the news is made public, no matter whether the murderer moves or doesn't move, he will fall into a passive state. It's just that I think..."

He stopped talking here.

"What do you think?" Song Wen heard something in his words.

"I think... leaking case information to the media and disclosing the police investigation seems to be intentional." Lu Siyu said softly, this was just his vague feeling, without any actual evidence, someone seemed to I want to make this case bigger on the Internet and in the media.

Song Wen frowned slightly, was someone deliberately manipulating this behind the scenes?

People's memory and energy are limited. This case quickly overshadowed the previous Christmas car accident in Wushan Nursing Home.

Nothing grabs the public's attention quite like a serial killer who suddenly appears.

So behind this, is someone diverting the public's attention?

Was Zhuang Yi's appearance accidental?