Chapter 15 Thirteenth Qingming Flower Festival
My birthday is January 10th, and many of my father’s colleagues joked that I was born to be a policeman since I was a child (the number on January 10th happens to be the police number 110).Because I was born in winter, I also have a nickname called Dongzi, as if I have an indissoluble bond with winter.But what I hate the most is winter because I am naturally afraid of the cold. Every year when winter turns to spring and the season of winter jasmine blooms is the time when I feel the happiest.Some people say that the provincial capital does not have two seasons, spring and autumn. After the harsh winter, there will be scorching summer. The only time when you can feel the spring breeze is at the end of March and the beginning of April, on the eve of Qingming Festival.If you go outing at this time and look at the rapeseed flowers blooming all over the mountains, how pleasant it is!
It's a pity that after studying in university for 7 years, the plan to travel has always been just a dream.In the first year after joining the work, because of our outstanding performance, I finally had a happy Spring Festival safely.In a flash, it was the end of March again, and the idea of going out in the green began to move around again.I made an appointment with my girlfriend Bell early to go to see rapeseed flowers together during the Ching Ming holiday.But the plan can never keep up with the changes. No, the Ching Ming holiday has just begun, and I am still "sleeping in spring without realizing the dawn", and the phone rings like a life-threatening noise.
No matter how much I slept, as soon as I heard the phone ring, I would jump out of bed like an electric shock. I have been doing this for years, and it has become a habit.I was afraid of what was coming. The call was indeed from Master, saying that there was a homicide in Shipei County, which is close to the provincial capital, and one person died. Because the scene was in the center of the county town, the social impact was great, so the leaders of the Shipei County Public Security Bureau Immediately through the municipal bureau, he submitted an application for technical support to the forensic department of the provincial department.
Although he spends more than half of the year on business trips, Master almost responds to requests from the grassroots.Master said that although our abilities and time are limited, we should do our best to handle as many cases as possible, for the sake of grassroots forensic work, to fight crimes, and to protect the people.When I first heard what Master said, I thought it was a bit too far-fetched, but after being a forensic doctor for a long time, I gradually realized that in fact, we have been practicing these principles silently all the time, which is extraordinarily calm and even "cool" to outsiders. The forensic doctors are actually full of blood and righteousness in their hearts.It is precisely because of that irresistible sense of responsibility that no matter how sleepy or busy we are, we can always accept the call and rush to the scene.
Time was running out, so I hurriedly got dressed and got on the police car heading to Shipei County without even bothering to buy breakfast.In the police car, I couldn't wait to ask Master about the situation of the case, hoping to get some information before arriving at the scene, so that I could be psychologically prepared and make a plan for the next step.
"The order was directly issued by the duty room." The master spread his hands and said, "There is only one sentence. A corpse was found in Shi Hanoi. The preliminary judgment was homicide. Because the body was found in a prosperous area of the county, the response was strong. We demand that the case be solved as soon as possible.”
"Just this little information?" I shook my head in disappointment.
"What's the rush?" Master rolled the window of the car and lit a cigarette. "I asked. To be on the safe side, the scene has been protected, and we will start salvaging the bodies after we get there."
"Isn't the body washed away by the water?" I was surprised by this absurd local decision.
"Obviously it can't be washed away, and if it can be washed away, it's not fished. Are you stupid?"
I was silent, but I was still faintly worried.The original condition of the first scene is important, but in order to wait for us, the position of the corpse is changed or the corpse is damaged, which is not worth the candle.
Shipei County is very close to the provincial capital. We set off at 7 o'clock in the morning and successfully avoided the traffic rush in the city. An hour later, we arrived at the scene in the center of Shipei County.It was 8 o'clock in the morning, and it was also the time when there were the most pedestrians. From a distance, I could see a large crowd of onlookers standing on tiptoes, talking a lot.The police responsible for the protection of the scene are working hard to prevent the masses and journalists from stepping into the cordon.
Wearing the on-site investigation documents and carrying the investigation box, we walked into the cordon amidst the discussion of "the forensic doctor is here".
Shipei County, with a population of 200,000, is a beautiful county.The Shihe River passes through the center of the city from west to east, and there are more than 10 stone bridges across it, adding a bit of antique beauty to the county.In this season, the water in the Shihe River is more than 2 meters deep, and the water quality is still clear, but it is impossible to take a closer look at the objects in the water.
The location where the body was found was near the stone bridge in the center of the county town. On both sides of the bridge were scattered shop fronts.At 6 o'clock in the morning, when the owner of a certain store went to Shihe to fetch water to wash mops, he saw something floating and sinking in the water. At this time, before dawn, the owner got goosebumps all over his body, so he called the police.The police from the local police station rushed to the scene and found a body in a floral dress in the water.
Master and I stood on the bridge and looked into the water. We vaguely saw the body still sinking under the impact of the water. The floral dress spread around the body, like flowers in a cemetery, mourning the misfortune of the deceased.
"The water flow is not very slow, why didn't the corpse continue to float down?" Master's words were right, and he first asked about the situation of the Qingshi River.
"This is the central bridge, and there is a natural barrier under the bridge," said forensic doctor Gui from the Shipei County Public Security Bureau, wearing high-top rubber shoes and rubber gloves, who was about to go down the river to salvage the corpse.
"Barrier?" Master was very curious, "What kind of barrier?"
"It is the bluestone under the river bed. The bluestone here is slope-shaped, and the highest point is less than 30 cm from the water surface. Because this barrier does not affect the water flow, and can filter some garbage, it is easy to clean, so no one has modified it. For many years Yes, it has always been like this, generally larger objects that flow down from the upstream will be intercepted here."
"Oh, because the height of the water surface did not exceed the thickness of the corpse, the corpse was intercepted at this position." I suddenly realized, "In this season, it will take three or four days for the corpse to float up?"
The master shook his head and said, "No. The bluestone here is slope-shaped, so the corpse we saw didn't float up, but was stranded."
I nodded in approval.
The master went on to say: "This is located in the center of the county seat. If the corpse floated here earlier, it would be discovered by the masses immediately. The Shihe River flows so fast, and as far as I know, the Shihe River is not long, so I analyzed the corpse. It floated over last night, and the death time will not be very long."
"Can we go down and have a look?" Master looked around, as if looking for a protective gear that could go into the water.
"Yes, the water here is very shallow." Forensic doctor Gui said, "But the bluestone is very slippery, so be careful. Children often play in the water here, slipping into the deep water and drowning."
"Crow's Mouth." Master smiled and looked at Forensic Doctor Gui, and instructed me to put on rubber boots and gloves with him, and go into the water to explore.
The bluestone was really slippery, and I fell down as soon as I got into the water. Fortunately, the water on the shore was shallow, and my clothes and pants were only wet.The weather was already warm, and I didn't care about my soaked pants, and continued to walk near the corpse.
Walking to the side of the corpse, only to find that the corpse was really blocked by this bluestone to the west, sinking and floating, but failed to cross the bluestone barrier.
I leaned over cautiously and grabbed the corpse's right hand.It was a slender but stiff hand, and it appeared that the rigors had fully developed in the small joints.The corpse's fingers curled up, and the nails scraped against my rubber-gloved palm, making me feel hairy.
Standing on the slippery bluestone, forensic doctor Gui and I found it difficult to exert our strength. It took a lot of effort to use the buoyancy of the river to drag the body to the bank, and then worked together with the police from the police station on the bank to remove the body. Lifted ashore.
This was a very young deceased, who looked to be in his teens or twenties.She has fair skin, a pointed chin, and a pair of big eyes staring weakly at the sky, as if she was full of fear of the unknown before she died. She was wearing a sweater, a pair of light blue thin jeans, and a floral dress on the outside. .
I tried my best to move the upper and lower jaw joints of the deceased and look at the teeth of the deceased, hoping to preliminarily determine the age of the deceased.However, the corpse's rigor had already formed very solidly, and the mandibular joint showed no sign of being able to move at all.
"What are you doing?" It seemed that Master was very puzzled by my actions.
"Look at the age and see if you can find the source of the corpse as soon as possible."
"What's the rush? How hard can it be to find the source of the corpse in such a small county?" Master said, "Besides, you started the preliminary corpse inspection before the on-site investigation was over? Come on, you can't go wrong."
I scratched my head embarrassingly, I was indeed a little anxious.However, this is obviously not a murder scene, what is there to investigate?
"There is no other way to find the source of the corpse through autopsy." The master lay on the bridge and carefully inspected the water below. "It is best to find the source of the corpse directly through on-site investigation. If not, then consider passing it." The postmortem examination infers some basis for finding the source of the corpse."
"However, how do you determine the source of the corpse through on-site investigation? Are you wearing clothes?" I looked at the corpse, which appeared to be in a strange posture because of its rigor.
"The corpse may have belongings, and after being hit by the current, it ran aground in this shallow water." Master said, "If you don't believe me, what do you think it is?"
Along the position of the master's finger, I really saw a floating thing next to the bluestone, just near the position of the corpse just now. Before that, my attention was all on the corpse, and I didn't pay attention to this thing at all.Excitedly, I re-entered the water, walked along the slippery bluestone to the thing, and reached out to fish it out of the water.
I was really hit by what Master said.It turned out to be a schoolbag.
This is really a good thing for the on-site investigators. During the on-site investigation of each case, the investigators look forward to finding key physical evidence such as ID cards, business cards, and mobile phones.Through these physical evidences, the source of the corpse can be determined quickly, which can also save a lot of trouble for the subsequent autopsy work and speed up the detection of the case.
The schoolbag I salvaged was such an "artifact". Inside the bag was a soaked student card. On the student card was a photo of the deceased, and the words next to it clearly revealed the identity of the deceased. : Ma Xiaolan, Class 1, Senior Three, No. 1 Middle School, Shipei County.
"Let's go find someone." Master said to the police in the area around him, then turned to me and said, "Let's start the autopsy."
I carefully observed the clothes of the deceased, and found that there were no signs of damage, and they were neatly dressed.
"It doesn't look like rape. The student doesn't have much money, and it won't be robbery. Could it be that this high school girl has a grudge against someone?" I shook my head in doubt. Judging from the current situation, it is difficult to understand the nature of the case. Have a preliminary understanding.I carefully checked the dead man's belt, it was fully buckled, and the shoes were well worn on his feet.
"Being neatly dressed doesn't mean it's not rape. Look at this bra." The master lifted up the sweater of the deceased and said to the criminal cameraman, "Take a photo."
I looked with my head and found that the lower edge of the underwear of the deceased was slightly curled up. I said: "This cannot be used as evidence! It may have been formed by the impact of the water flow, or it may have been made during salvage."
The master shook his head and said, "The impact of the water can't be explained. The sweater is not rolled up. How could the underwear inside be rolled up? It's impossible to salvage the body. You salvaged the body, and you made it?"
"No...no..." I blushed, I was embarrassed by Master asking this question.
"Anyway, there are doubts." The master frowned, "Anyway, in order to avoid the loss of traces, the autopsy should not be carried out on the scene, but go back to the autopsy room for examination."
I tested the cadaver for rigor and found that every facet joint had formed.Rigidity can appear on the corpse 2 hours after death, gradually forming from large joints to small joints, reaching the hardest after more than 10 hours after death, and starting to relieve 24 to 48 hours after death.According to the condition of rigor, combined with some other post-mortem phenomena, we made a preliminary judgment on the time of death of the deceased. The deceased died around 8 o'clock last night.
The deceased had no other obvious injuries except subcutaneous hemorrhage could be seen vaguely on both wrists, but the signs of suffocation were obvious.
"There are no air bubbles in the nose and mouth, clean hands, no water plants and silt, it looks like the body was thrown into the water after death." It is pediatrics to judge whether the body was thrown into the water before death or the body was thrown into the water after death.
The master straightened his waist, looked towards the west along the river, and asked, "Where is the upper reaches?"
"Three kilometers to the west is the outskirts of the city, and the two sides are farmland and residents." The head of the criminal police team said, "Oh, there are also some factories."
I did not pay attention to the direction of the river like my master did, so I continued to conduct the autopsy, and dictated what I saw so that the forensic doctor Gui could record it: "There are no spots on the body, it seems that the body was thrown into the water less than an hour after death. At that time, plaques had not yet formed." Corpses in water usually have difficulty forming plaques.
"I didn't find anything, I was at a loss." I stomped my numb feet.
"Let's go to the funeral parlor." Master waved his hand and got back into the police car with me.
The funeral home in Shipei County has not built a standardized autopsy room. The place where the forensic autopsy is performed is in a dilapidated hut behind the farewell hall. There are no other equipment and facilities in the room except a stainless steel dissection bed, and the lighting conditions are poor. No, it's an extremely crude autopsy space.
Although there was not enough light, comparatively speaking, it was better than the open-air autopsy being affected by the crowds who came to the memorial service, so Master decided to examine Ma Xiaolan's body in this dark and cold small autopsy room.
Seeing the death of a young life is unavoidably heart-piercing.I also told Master about this feeling, and worried that it would affect my judgment on the case.Master, however, agreed with me that I often felt this way. He said that an excellent forensic doctor must have the potential to hate evil and hate.
The blooming girl in front of her was lying quietly on the dissecting table, because her rigors were fully formed, she was curled up there with her eyes open, and there was no trace of blood on her snow-white skin.
"The rigor is so severe that it's hard to take off the clothes." I said, "Did you cut it off?"
"No." The master shook his head resolutely, "We don't have any information at the moment, there may be important marks on the clothes, and the clothes cannot be damaged."
"Then let's destroy the rigor." Rigidity can be destroyed after it is formed. If you move the joints vigorously, the rigor will disappear naturally, but this is a laborious task.Forensic doctor Gui and I spent a lot of effort to destroy the rigor of the major joints of the deceased. Ma Xiaolan returned to her natural state, lying there peacefully like a sleeping beauty.
We carefully took pictures of the state of the corpse, fixed the video, and then took off the deceased's clothes layer by layer.Master asked to be careful when taking it off, and to take pictures to fix each layer.Ma Xiaolan's clothes were still in normal condition, except that the lower edge of the underwear was slightly curled, the others were neatly dressed, the stitches and buttons of the clothes were intact, and there was no doubt about it.If one had to find out some abnormalities, it would be that Ma Xiaolan's socks were not put on properly, the heels had faded to the center of the soles of the feet, and the socks were worn crumpled on the feet like this.
"A pretty little girl, isn't it uncomfortable to wear socks like this?" I said.The master continued to observe the corpse table noncommittally.
After removing all the clothes of the deceased, the master carefully took the clothes to the examination table that had been prepared outside the anatomy room, and said, "The light inside is too dark. You are in charge of the autopsy examination, and I will be in charge of the clothing inspection."
I like this kind of division of labor, which can give me the opportunity to think independently. If I always follow Master's advice, I will never make progress.
From the appearance of the body, there was no damage.Opening the eyelids of the corpse, it was found that there was obvious blood stasis, and the fingernails were also blue-purple. It can be concluded that the deceased died of suffocation.Opening the lips of the corpse, it was found that the mucous membrane of the lips was intact, and the teeth were not loose, which basically ruled out the death of mechanical asphyxiation caused by pressing the mouth and nose.
The wrists of the corpse had some faint color changes. Forensic doctor Gui and I carefully cut the skin and found that there was bleeding under the skin.
"There is bleeding under the skin of the wrist, but the skin is not scratched and contused. This is caused by someone else's grasping of her wrist. It is a restraint injury." Forensic doctor Gui said to herself.
"Control your hands and choke your neck, but don't cover your mouth." I said, "Either the deceased did not scream, or they were in a place where shouting would not help, and the murderer was not afraid of her shouting." After a further deduction, Forensic Gui nodded in approval.
"Looks like it's probably rape and homicide again." Forensic doctor Gui began to guess based on his experience.
"Check the perineum." When I was about to use gauze to extract vaginal swabs from the deceased, I unexpectedly found blood stains adhered to the perineum of the deceased.
"Ah!" I exclaimed, thinking of the dagger stuck in the perineum of the deceased in the case not long ago.
Master heard the sound and walked into the dissection room: "What? Did you find anything?"
"Blood in the perineum!" I said.
The master shook his head: "Women have periods, don't tell me you don't know." After speaking, he walked out of the dissection room.The female police officer in charge of the video burst out laughing, and I was ashamed of my fuss.
After washing the perineum of the deceased, I unexpectedly found that the hymen of the deceased was intact and the perineum was not damaged.
"Brother Gui, you guessed wrong, it's not rape." I wiped the sweat from my brow and said.The deceased had not been sexually assaulted during his lifetime, and I felt a little calmer in my heart.I know this is the mentality of pity for flowers and pity for jade. I have always hated rape cases the most. Sometimes when I participated in the interrogation of rapists, I couldn't help going up and kicking them, and then the investigators would immediately pull them away and say: " If you can’t be beaten, you can’t be beaten, and even a little bit of injury will be said to be torture to extract a confession.”
Forensic doctor Gui seemed to be in trouble, and said, "It's not sexual assault, it's not financial infringement, and it's hard to explain it as vendetta. Who would kill such a beautiful female student in their spare time?"
"It seems that the nature of the case can only be considered after meeting with the investigator." I said, "Let's start?"
Although the autopsy has been underway for a while, we usually use words like "let's go" to mean the beginning of a systematic autopsy.
The autopsy was carried out very quickly. Firstly, forensic doctor Gui and I were familiar with the road, and secondly, there was no injury on the corpse, so there were few places that needed to be measured, photographed, and partially dissected, which saved a lot of time.We carefully dissected the neck of the deceased, separated the muscles layer by layer, and found that the deep muscles had obvious bleeding reactions, and the corresponding hyoid bone was also fractured.It was previously speculated that the deceased died of mechanical asphyxiation caused by strangulation of the neck.
I took off the blood-stained gloves I was wearing on the outside and went to the dissecting room.The master was still inspecting the deceased's clothes little by little, and there were some objects neatly placed beside the clothes, including keys, small change, hair ties and so on.I walked up to Master and said, "Master, you read it so carefully, why haven't you finished reading it for so long?"
Master nodded and said, "The autopsy is over? You're pretty proficient now. Did you find anything?"
"It's quite simple, so it's fast. There are two findings. One is that the deceased died of mechanical suffocation caused by strangulation of the neck, and the other is that the nature of the case of rape and homicide is excluded."
"Exclude rape?" Master stopped what he was doing, looked at me and said, "What basis?"
"The evidence is sufficient. The hymen is intact and the perineum is not damaged." I am full of confidence.
"Then you are completely wrong. This is a case of rape and murder." The master laughed and said.
Master's words seemed to give me a heavy blow.After more than two hours of painstaking autopsy, two conclusions were drawn, and one was "completely wrong". This is really hurtful.I was dizzy for a few seconds before I realized: "No, the hymen is indeed intact, so what basis do you have to be sure that it is rape and murder?"
"First of all, you need to correct your mistakes." Master said, "The lack of sexual intercourse does not mean that the murderer's purpose is not sexual assault. This is a logical issue."
I thought about it and found that I had indeed made a logical error.The inference of the nature of the case is to analyze the murderer's actions from the scene and various subtle traces of the corpse to discover the murderer's purpose of committing the crime, rather than looking at the results of the violation of the corpse to deduce the murderer's purpose.I'm ignoring the concept of "near miss".
"There are many reasons for not having sex." Master continued to reprimand me, "Is it okay for the murderer to have sexual dysfunction? When he was about to rape, he found that Ma Xiaolan had been strangled and stopped the rape, right? The most important point, you also paid attention to it just now. Here, Ma Xiaolan seems to have just had her period." The master picked up the underwear of the deceased, and there was indeed a little blood on the crotch.
"I know I was wrong." I smiled and said, "Master found the key trace?"
"It's not the key trace, it's the basis that can determine the nature of the case." The master pointed to the neatly placed objects beside the inspection table.
"What can these coins and keys explain?" I was curious about Master's deduction.
"Don't interrupt, I'm not talking about personal belongings." The master pointed to several pieces of green objects with the hemostat, and said, "These were found on the inside of the deceased's outer trousers, stuck to the inside of the outer trouser legs."
I clamped a section of it with a hemostat, looked at it, and said, "This should be the stem of the plant, as well as the leaves."
"Yes, what does it mean?" Master asked.
"I see. The master said that something should not have appeared in the trousers, indicating that the deceased had taken off his trousers. After the deceased was killed, the murderer put on trousers for the corpse. So the branches and leaves from the outside adhered to the body. The inside of the pants, right?"
Master nodded: "The reaction is quite fast, that's what happened."
I shook my head: "I think it's a little far-fetched."
Hearing my sudden objection, Master was a little startled: "Far-fetched?"
"Yes." I said, "The corpse has been impacted so far by the water flow. If objects in the water were impacted by the water flow and penetrated into the inner side of the trousers of the deceased, wouldn't it be okay?"
Master smiled and nodded: "Very good, it's not easy to think about this problem."
"However, I looked at the broken surfaces of these plant stems and leaves. They are very fresh, and they seem to stick to the inside of the trousers immediately after breaking." I said, "But it cannot be ruled out that there are freshly broken plant leaves in the water."
"Very good, the progress is very fast." Master said with a smile, "I also considered this issue at first. But after I saw this, I strengthened my confidence."
Master used hemostatic forceps to pick up several pieces of yellow and black flakes.
I leaned forward, smelled it, and said, "Petals! Rapeseed petals!"
"Yes, rapeseed petals covered in mud. As you said just now, these rapeseed petals are also freshly crushed." Master said, "However, they were not found inside the underwear, they were found inside the briefs of the deceased of."
"Oh." I smiled and nodded, "There is a possibility that foreign objects may be washed into the trousers by water, but these petals cannot be washed into the briefs with elastic bands on three sides."
"So, it can be concluded that the murderer took off the deceased's underwear and found that the deceased was on her period, or found that the deceased was dead, so she did not perform sexual acts. In order to hide his purpose of rape, he put on underwear for the deceased , and then threw the dead into the river." Master said confidently.
"By the way, I just found out that the deceased's socks were also abnormal." I suddenly remembered the state of the deceased's socks, and said, "The bottom of the socks is all rolled up. It's so uncomfortable to walk in this state."
"Very good, you have also discovered this detail." Master said approvingly, "I also looked carefully at the sock. Although the bottom of the sock is very curled, there are no creases at the curled place, that is to say, a part of the sock has come off. , there was no force on the place where the bottom of the foot curled up. In other words, the deceased never stood up again after the socks were taken off and the shoes were put on again. I analyzed that the murderer must have taken off the shoes of the deceased, because no When taking off shoes, it is difficult to take off the jeans with thin trousers. When taking off shoes or trousers, it causes socks to fade and curl."
I nodded.It seems that this is really a case of rape and homicide, just an attempted rape.
"Is there any other discovery?" After finding out the cause of death, the time of death and the nature of the case, I have a little bit of confidence in my mind. At least there is something to say in the special case meeting. However, these questions cannot directly narrow the scope of the investigation. Delineate the target of investigation.Master is like a god in my eyes, so I have other expectations for Master.
"Yes." The master took out a piece of paper torn from the homework book from the deceased's belongings.The two words "Mr. Zheng" were neatly written on the paper, followed by a string of mobile phone numbers.
"This was found in the front pocket of the deceased's jeans," Master said.
"It seems that Mr. Zheng must have something to do with Ma Xiaolan's death." I guessed.
Master smiled, noncommittal: "Clean up, have a meal, and talk about it at the project meeting in the afternoon."
In the meeting room of the task force, the investigators were nervously sorting out the situation obtained from the investigation and interview all morning.
"Let's get started." The master preoccupied the guests and omitted the small talk.
"Our team is in charge of investigating Ma Xiaolan's identity." The investigators began to report in groups, "Ma Xiaolan is a senior high school student in the No. Something happened at home, and I'm in a bad mood."
"Our team is responsible for investigating Ma Xiaolan's social interactions. After investigation, apart from teachers and classmates, Ma Xiaolan has no other social interactions. She usually goes home after school and has no bad habits."
"Our team is in charge of investigating Ma Xiaolan's family situation." The leading investigator seemed a little depressed, "Ma Xiaolan's parents divorced early, Ma Xiaolan has been following her father, and has had no contact with her mother for nearly 10 years. Her father earns a living by doing some part-time jobs. However, a month ago, he accidentally fell into a deep ditch on the roadside and suffered a burst fracture of three lumbar vertebrae. Because he has no money for treatment, he is currently sick at home and will not be able to work in the field for half a year. The family is very poor, and there is only one earthen house. When we went there, the deceased His father was still lying on the bed, unconscious from hunger. We delivered food and told him the bad news after he finished eating. We are currently coordinating with relevant departments to rescue him."
The investigators bowed their heads and mourned the unfortunate family.The investigator went on to say: "According to Ma's father, Ma Xiaolan would return home on time at 6 o'clock every day. Yesterday at noon, Ma Xiaolan told him that he would go to a classmate's home to do homework in the evening and come back later, saying that he would do dinner later. But Ma's father waited." Ma Xiaolan didn't come back overnight. We are currently investigating which classmate's house Ma Xiaolan may have visited."
After listening to the introduction of the host investigator, everyone was very depressed, and each made up his mind to solve the case quickly.
"There is no need to investigate." The master said, "Going to a classmate's house is a lie. This Ma Xiaolan is looking for a job."
"There are two months left before the college entrance examination, so she's looking for a job?"
"According to my analysis, Ma Xiaolan chose to drop out of school by herself," said the master, "she is a filial daughter."
The master took out the homework paper in a transparent evidence bag and said, "We found this note with Mr. Zheng's phone number in the deceased's body pocket. She should have gone to see Mr. Zheng that night. According to Ma Xiaolan With the current family situation, the reason why she went to see Mr. Zheng was probably to interview for a job."
"It seems that finding Mr. Zheng is the key to breaking through the case," said the team leader.
"It's easy." Master said, "Go and find it. I'll go and see."
Soon, Master and I arrived at the small bridge where the deceased was found.
"Stop!" I suddenly felt a flash of inspiration, "I'll go down and have a look."
"The on-site investigation is over, what are you going to do?" Master was startled by my sudden shout.
"I have an idea." I said mysteriously, "I'll go down and measure the speed of the water, and then multiply the floating speed of the object by the floating time of the deceased to know the approximate distance and find the crime scene!"
"Hahahaha." Master suddenly laughed, "Stupid, do you need to be so troublesome? Besides, different objects have different floating speeds, and you don't know when the murderer threw the body into the water. There is no obstacle to prevent the body from floating, and the flow of water is not uniform."
I scratched my head, and after hearing what Master said, I felt that my petty cleverness was extremely absurd.
"Let's go. I'm looking for the first scene this time." Master turned to the driver and said, "Go west along Shihe."
Soon, I realized what Master's intention was.Not surprisingly, Master wanted to find a place with rapeseed flowers.There were rape petals in the deceased's underwear, so the place where she was injured must be the place where there were rape flowers.That's why Master drove to the upper reaches of the river to see if it was possible to find a place with rapeseed flowers.
But things are not as simple as imagined.
After driving a few kilometers, the car started to bump, and soon, we really found the yellow rapeseed flowers in full bloom, but what we saw were the rapeseed flowers all over the mountains and plains.
"This... so many rapeseed flowers..." I was stunned, "How can I find them?"
Master smiled and said, "Don't worry, I have a solution."
If it weren't for the murder case that happened nearby, which seriously affected my mood, this place is still very worthy of appreciation.
The stone river meanders and divides this land into two equal parts, and antique stone bridges can occasionally be seen on the river.Both sides of the river are full of rapeseed flowers, yellow and green, very beautiful from a distance.The rapeseed field on each side is about 20 meters wide, spreading out like a carpet along the east-west direction, stretching as far as the eye can see.On the north and south sides of the rapeseed field are quaint houses with white walls and black tiles. The head of the criminal police team who accompanied us said that these are mostly small factory buildings, and there are also some residents.
"If there are many factories here, and this so-called Mr. Zheng is also the owner of a certain factory here, it is more likely to make an appointment near here, which coincides with the rapeseed we found." Master stood in the east of the rapeseed field On the stone bridge on the side, looking into the rapeseed field.
I didn't have the heart to admire the scenery, nor did I have the heart to think about why Ma Xiaolan came to this rapeseed field. I just wanted to know, what method will Master use to find the first scene of the case?
"Such a large area, do we have to go all the way along the river to find it?" I hurriedly asked Master, "This is a difficult task."
The master shook his head and said: "It's very simple. First, the petals of the rapeseed are covered with soil, so it can be determined that the crime was committed in the field of rapeseed. Two people were lying in the field of rapeseed. The petals and stems of the rapeseed were broken. If it is still fresh, then the place where there is a large area of this rapeseed field is the scene of the crime.”
We nodded one after another. It is impossible for a fallen rape flower to be righted again.
Master went on to say: "Secondly, I carefully checked the clothes of the deceased. Although they were soaked, there seemed to be sporadic lime-like white substances adhering to them, and the shoes of the deceased were obviously scratched and scratched. Traces. Such traces must be formed by friction with a large area of hard objects. I carefully looked at the environment here, there is no hard ground, it is all mud, so the only way to form traces of friction is on the bridge, or By the wall."
I turned my head and looked at the surrounding environment. Indeed, only the house walls and small bridges have the characteristics of large-scale hard objects.
"It is impossible to get rape flowers on the bridge, so the only possibility is to commit the crime near the wall. This is also in line with the possibility that the white ash on the wall adheres to the clothes of the deceased. The walls are all hidden places, where the crime is committed. It's very likely."
"Let me talk about the third." I was inspired by Master's guidance, "Third, it is impossible for the corpse to walk to a place close to the rapeseed field by itself. After all, it is for an interview, not an affair. Therefore, I think, the murderer must have taken the deceased from the border of the rape flower field to the root of the wall deep in the rape flower field. There are traces."
Master nodded: "That's right, that's what happened. According to my inference, although the murderer took the deceased into the rapeseed flower route, it may not be very obvious, but there is still a possibility that the rapeseed flower leans to both sides. Follow this trajectory to enter Rapeseed flower fields, it is easy to find the place where the rapeseed flowers fall."
"I'm looking for the south side of the river, and Master is looking for the north side of the river, how about it?" I couldn't wait.
After 10 minutes, according to our deduction, Master found a lodging rape flower field near the root of the wall on the north side of Shihe River.
The light was very good that day, and without much effort, we extracted valuable physical evidence.这个物证让师父很感兴趣：倒伏的油菜花地里，有几棵油菜花的花茎上黏附着血迹。
“怕是死者的月经血吧？”我皱着眉头说，“毕竟凶手是脱掉了死者的内裤，月经血有可能黏附在这里。”
师父慢慢地移除了倒伏在地面上的油菜花，指着地面的泥土说：“仔细看，这两片泥土有明显的下压痕迹，结合附近的泥土分析，这里应该是臀部着地、反复挣扎压迫地面导致的，简单说，就是臀印。”
听师父一说，看起来还真是像。
“如果是臀印，那么月经血的流出应该会黏附在这一片的油菜花上。”师父接着说，“但是我们发现的血液，是在旁边倒伏的油菜花上，所以我觉得是死者的血的可能性不大。”
我看了一眼，发现臀印和发现血迹的油菜花残枝有几十厘米的距离。“如果是死者的内裤被扔在那里，内裤上的血迹染到油菜花残枝的呢？”
“不不。”师父说，“不可能。残枝上的血迹浓度不小，呈流注状，是流上去的，而不是擦蹭上去的。”
“这样看，这个血迹的价值就很大了。”我点了点头说，“总之去检验吧，很快能知道结果的。排除了死者的血，我们就有破案了。”
“另外，”我突然想起了某件事情，“这房子里没有人住吗？”
刑警队长指了指油菜花倒伏所在的那片墙根：“你是说这儿？这好像是个印刷厂吧？”
“怎么了？”师父插话问道。
“是这样的。”我说，“检验的时候，发现死者的口鼻腔没有任何损伤，也就是说凶手并没有捂压死者的口鼻。凶手把死者拖行了这么远，又在一个工厂的墙边强奸死者，死者不呼救？”
我的话让师父陷入了沉思。
突然，刑警大队长的电话铃声突然响起，他走到一旁打了两分钟电话，回到师父的身边说：“那个郑总查到了，叫郑国，不是什么总，是一家小工厂的员工。我们找到他的时候，这个郑国矢口否认他认识和联系马小兰的事儿，我们觉得可疑，已经带回刑警队进一步问话了。”
“DNA可能还要一天的时间才能出结果，你们先问着吧。”师父说，“有什么情况及时通报我们。”
我和师父花了一下午的时间研究尸体检验的照片和现场的照片，可惜一无所获。
晚上7点，我和师父又来到专案组。经过一下午的留置盘问，侦查员们仍然不能确定郑国是不是本案的凶手。“开始郑国矢口否认认识马小兰，后来在证据面前才又改了口。”主办侦查员说，“据郑国说，他是通过网络认识马小兰的。”
“马小兰不是每天都按时回家吗？”师父说，“她哪有时间上网？”
“是这样的。郑国说在一个网站看到马小兰求职的帖子，加了马小兰的QQ，郑国承认自己的初衷是想骗色。”
“你还没有回答我的问题。”师父说。
“我们调取了郑国和马小兰的聊天内容。证实马小兰确实刚刚申请了QQ，上网时间一般是下午1点到2点。她是利用中午回家做完饭以后的空闲时间上网求职。”主办侦查员说，“从聊天内容上看，郑国确实是在欺骗马小兰。马小兰想在城西开发区上班，可能是觉得城西开发区待遇比较好，郑国看马小兰有这个求职意向，谎称自己是城西开发区的工厂老板。所以他们会约在城西开发区见面。”
“郑国对现场附近的环境很熟悉吗？”我问，“不然他怎么知道那里没有人？”
“不，”侦查员说，“你理解错了，据郑国说，他绝对不敢强奸，所以不在乎约见的地点，他就是想骗色的。经调查，郑国确实很少到城西区，应该对那一片的情况不了解。据郑国说，当天晚上，他还找错了路，到达现场的时候，远远站在桥上想先看看马小兰的长相。结果他没有看到马小兰，只看到一个光头的男子蹲在油菜花地旁边抽烟。他以为马小兰带了男朋友来，就跑了。”
“你们怎么看？”师父问。
“不太肯定他有没有说真话。不过，结合外围调查情况看，郑国平时胆子很小，我们分析他不敢干这种胆大的事情，另外，确实有人证实郑国当天晚上8点10分还在离现场不远的一个小卖部问路，问的就是城西开发区入口在哪儿。”
“郑国身上有伤吗？”我想起了现场发现的流注状血迹，问道。
“没有，没伤，仔细检查了。”侦查员说。
“不一定有伤，不排除鼻血。”师父说，“目前难辨郑国的证词真假，等血液检验结果出来再说。另外，我觉得可以去做一个现场实验，看看郑国是不是在说谎。”
“什么实验？”大队长问。
“现在马上8点了，今天天气和案发那天差不多。”师父说，“我们去现场，站在桥上，看油菜花地的旁边如果蹲着一个光头的话，郑国能不能看见。按理说阴天是很难看见的。”
“对，”我觉得师父这招应该管用，“如果根本不可能看得见油菜花地旁边的情况，那么说什么看见光头男子抽烟就肯定是在说谎了。”
8点10分，我们一行人马准时到达了上午发现的作案现场进行现场实验。
晚上的现场和白天似乎有些不一样，但并不是想象的那样伸手不见五指。白天仿佛没有动静的厂房原来晚上都在生产，雪亮的灯光从窗户照射出来，把油菜花地照得挺亮。这个实验不用做了，因为我们连错落有致的油菜花都可以清楚看到，更别说一个人蹲在那儿了。
“看来郑国说的是事实啊。”我说，“那么这个光头就很可疑了。”
“现在不仅仅是光头的事情。”师父说，“下午你说的问题也值得思考。为什么凶手没有捂压死者的口鼻腔，死者不呼救吗？显而易见中心现场旁边的厂房在这个时间点还在开工，厂房里面肯定有人，窗户透出来的光线可以照到强奸发生的地方，犯罪分子不害怕惊动厂房里的人？”
“我还在想，为什么凶手能够轻松脱掉死者的衣物，又能把衣物穿得那么整齐。”我说，“没有光线肯定是不行的。目前看，这样的光线足够完成了。不过，师父说的问题确实值得思考。”
“我们可以去厂房里面看看吗？”师父问。
“没问题。”大队长带着我们绕到厂房正面的大门，走进了厂房。
没有想到看起来破旧的厂房，隔音效果如此之好，外面并没有发现多大的噪音，可是走进厂房，却发现厂房内的噪音非常大，连近在咫尺的人互相说话都要扯着嗓子。原来这是一家印刷厂，为了不打扰附近居民休息，内装潢采用了隔音材料。
“这样看，即便是外面敲锣打鼓，厂房里也听不见一点儿声音了。”我恍然大悟。
师父说：“这，不是关键。目前看，凶手肯定是熟悉这个厂的情况的人，甚至有可能是这个厂的职工！”
我点了点头，说：“对，如果不熟悉，肯定不敢在这面墙的外面犯罪。即便在这里犯罪，也应该阻止马小兰呼救。正是因为凶手非常了解厂房的情况，所以才用更多的力气控制马小兰的双手，而不顾她的呼救。”
“是的。”师父赞许地点了点头，“肯定是熟悉这个厂的人作的案。去问问，这个厂里有光头吗？”
“真找光头？郑国的话靠得住吗？”大队长说。
“既然通过调查肯定了郑国对这一片不熟悉，那么基本可以否定他的作案可能。既然不是他作案，那他就没有必要撒谎。”
师父的话还没有说完，我们都沉默了，因为我们看见了一个剃着光头、身穿印刷厂工作服、40岁左右的男人拎着一个水桶从外面走进了厂房。更让我们感兴趣的是，这个男人卷起了衣服的袖子，右上臂清晰可见两道血红的抓痕。
男人走进厂房，乍一抬头看见一屋子的人，而且有几人身着警服，转头就跑。
我和师父相视一笑，因为我们知道他跑得再快，也绝对快不过我们的刑警。
看着刑警将光头押上警车，我和师父一拍即合，悠闲自得地去街边大排档吃了一顿夜宵，打着饱嗝儿走进了县公安局刑警大队审讯室。
只是一顿夜宵的工夫，光头就全部招供了。原来案发当天，光头和平常一样，8点左右去石河打水回厂房打扫卫生，经过油菜花地的时候，发现一个年轻女孩背着书包正在油菜花地旁边翘首以待。看着年轻女孩窈窕的身姿，光头立即产生了歹念，趁女孩不注意将她拖进油菜花地里靠近自己厂房的墙边企图实施强奸。马小兰誓死不从，抓破了光头的手臂，光头一时恼怒就掐住了马小兰的脖子，本来是想吓唬吓唬她，没想到自己用力过猛，待他松手时马小兰已经断了气。发现马小兰已经死亡，光头吓得魂飞魄散，跑到油菜花地边抽了根烟，觉得尸体要是放在这里，他一定脱不了干系，于是他又重新回到现场，穿好了马小兰的衣服，将其扔进石河，想伪造死者死于失足落水的假象。未曾想，24个小时以后，警察就出现在了他的厂房里。
想到马小兰惨死的场景，我又没忍住脾气，上前打了光头两个耳光，同样被侦查员拉了开来：“别打、别打，打伤了会说我们刑讯逼供，不利于案件起诉……”
我愤愤不平地回了宾馆，又一次觉得心头沉甸甸的。在这个草长莺飞的季节，一个鲜活的生命就这样永远消失了。逝者已矣，唯有祈愿她那饱受折磨的父亲能够得到有效的救助，让这个无辜的孝顺女孩的在天之灵可以安息……
Notes:
Notes: