Criminal Investigation Files

"The male owner of this household was surnamed Zhou, named Zhou Chuguo. The deceased was him, as well as his mother Chen Cuihua and wife Yang Li. This morning, someone heard screams inside their house. They rushed over and found the door was half open. Then, there was someone lying in it, so I called the police." Zhang Dahai introduced them while leading them in.

Lin Xiuran followed into the door, Song Wen and Lu Siyu also put on their gloves and shoe covers, and walked into the yard.There were already three people standing in the yard, a middle-aged man wearing glasses was holding a forensic investigation box, a fat man next to him was taking pictures, and a little policeman with pimples looked at the dead body in fear. Don't dare to move forward.

Zhang Dahai introduced: "Li De is the forensic doctor of our county police station, and he has also dealt with forensic doctor Lin. The physical evidence is Xiao Wu, the criminal policeman, whose surname is Meng, just call him Xiao Meng."

Lin Xiuran looked at it, and it was obvious that this small courtyard was the scene of the crime, so he asked, "Have you taken all the photos?"

Zhang Dahai smiled and nodded: "It's all done."

On the ground near the door, lay two corpses, a man and a woman. Judging by their ages, both of them were about 30 years old.It should be Zhou Chuguo and Yang Li.

Now that summer is approaching, the two of them don't wear much. The faces of the two corpses are pale, and the rigors have formed. The corpses are in a strange and stiff posture. On the side, the left hand of the male corpse and the right hand of the female corpse were tightly pulled together.There was a burnt burn mark on the right hand of the male corpse, which was obviously an electric injury.

Lin Xiuran took a few glances and frowned slightly: "Have you moved these two corpses?"

Old Li, the forensic doctor standing in the yard, was taken aback by his question, and looked at Zhang Dahai as if asking for help.He didn't want to move these two people at first, but Zhang Dahai gave the order when he arrived in the morning.

After hearing Lin Xiuran's question, Zhang Dahai had to explain in a hurry: "These three people were already dead when we arrived. At that time, Zhou Chuguo's hand was still on the doorknob. We cut off the power. Opened the door and pulled his hand down... nothing else. Oh, by the way, we didn't undo the button."

"The button should have been caused by struggling. It's best not to move when you encounter such a situation in the future. We will deal with it when we arrive." Lin Xiuran squatted down as he spoke, and roughly checked the two corpses. He looked at them The electric spot on the palm of the male corpse felt the stiffness again, "The time of death was between [-] and [-] in the morning. The specifics depend on the results of the autopsy. The cause of death should all be electrocution."

After speaking, he got up and went inside again. After a whole morning of sunshine, the accumulated water in the yard has decreased a lot, but the water stains are still there. The elderly woman should be Zhou Chuguo's mother, Chen Cuihua.

Lin Xiuran walked over to take a closer look. He lifted the old man's drooping hair and looked at the old man's face. The old man was lying in the water on the ground. He might have touched it when he fell down. There was blood on her forehead. Her face was pale and her eyes were pale. It was half-opened, and the lying posture looked like a lump of meat spread out on the ground.Because of being electrocuted, her fingers convulsed, as if an animal's claws were tensed, trying to grab something.

"Now it is confirmed that it is a murder. The murderer is very familiar with the surrounding situation. He should be an acquaintance, so mobile crimes can be ruled out. You'd better apply to the higher-ups and send police to check the nearby stations to prevent the suspect from escaping." Song Wen said. Putting on the gloves, "people in the village should also pay attention to the movement."

Only then did Zhang Dahai think of this link, his face changed slightly, he took out his mobile phone and said, "I'll call right away."

Song Wen could see that Zhang Dahai's words were perfect, but he was actually a stick and could not be counted on.The little policeman and the witnesses obviously don't have much experience, and maybe they haven't seen many dead people.He instructed them to do the basic on-site survey, and then he turned around and asked Zhang Dahai: "Such a big incident happened in the village, is the village chief here?"

"Don't mention it, the old village head had a stroke a few years ago and just passed away two months ago. There are several people in the village who are fighting openly and secretly for the position of village head. But those people usually fight fiercely, and if something happens, they all frighten each other. Yes. Now the party secretary is in charge of the affairs. When you didn’t come in the morning, the party secretary came and told me to investigate the case carefully, and the village will cooperate.” Zhang Dahai took out a cigarette from his pocket and returned it to Song Wen handed over one.

Song Wen waved his hand: "I don't smoke."

Zhang Dahai was still reluctant: "Come here, don't be polite. Although this cigarette is not as expensive as yours, it is still very easy to smoke."

Song Wen frowned mercilessly: "This is the scene, if you want to smoke, go outside."

Only then did Zhang Dahai give up, let out an ooh, and pinned the cigarette behind his ear disgruntled.

Lu Siyu knew Song Wen's character, and he would give this kind of old man the respect he deserved in life, but as long as he was at work, Song Wen would become serious. If you can't get over it, no matter what the other party's qualifications or age, it's not giving you any face, and the picture is correct. This picture of Hai Hai's flattery was slapped on the horse's hoof, and Song Wen deserved to teach him a lesson.

Then Song Wen asked Zhang Dahai: "What are the occupations of these deceased?"

Zhang Dahai said: "Chen Cuihua has long been unemployed at home, Zhou Chuguo is the accountant in this village, and Yang Li has been working in farming, taking care of the family by the way."

Song Wen nodded, and went into the room to look around. Chen Cuihua lived on the first floor, and Zhou Chuguo and his wife lived on the second floor.The family was clearly unprepared for the doom, with leftovers in the kitchen.From the outside, the house of this family is well-built, and they should live in affluent life, but for some reason, the layout of the house is very simple, and the dishes on the table are all vegetarian. It seems that they are living in poverty.

"There is no sign of the house being tampered with. There is no sign of outsiders entering the house or door. The murderer did not enter the yard at all. The money on the table at home was not lost. It was not for money. Everyone's clothes are still intact, and it is not For sex, it should be for revenge, or for other reasons, he just wants this family to die." Song Wen said while checking the scene.

Lu Siyu nodded: "This case is definitely not accidental, but the murderer has carefully prepared and planned. He is waiting for such a heavy rain." It is easier to hide the murderer than other means to kill people invisible.

"Last night, it rained from 08:30 to 08:30. After [-]:[-], the rain stopped completely. Therefore, the installation time of the wire should be between [-]:[-] and [-]:[-] the next morning. The murderer knew that as long as there was heavy rain , there will be stagnant water in the yard.” Song Wen went back to the door, opened the door and said, “The electricity is directly connected to the iron gate, and the threshold is relatively high. It is safe, and there is no way to notice that the wires are connected to the door. It should be Zhou Chuguo who opened the door in the morning. After he was shocked, he couldn’t break free. Yang Li went to pull him, but he was stuck together. The water is equivalent to drawing electricity into the yard, and the whole yard is electrified, and Chen Cuihua, who was driven out when he heard the sound, was also electrocuted to death."

The family of three never expected that the iron gate of their house would be used as a sharp weapon by the murderer and die on such a morning.

Lu Siyu lowered his head to record at the side, and the tragedy of the morning emerged in his mind. The electric arc crackled in the yard, and the three of them didn't even have time to scream, and they kept twitching, and they soon became motionless.The feeling of the electric current hitting the body is an unbearable sting, like a hot needle piercing the skin, like a caterpillar crawling into the body quickly along the flesh and blood, until the connected electric current hits the skin. heart, resulting in cardiac arrest.

After Lu Siyu marked each specific location measurement, he frowned slightly, looked at the inconvenience of biting his gloved fingers, and opened his mouth to grab the pen in his hand. Who was it that treated this family? With so much hatred?

After reading the outside of the house, Lu Siyu walked into the room, his eyes fell on a notebook, he opened it casually, and found that it was Zhou Chuguo's account book, and every account on it was clearly memorized, detailing everything, I also record the accounts in different colors because of various trivial matters in life. There are still several such bookkeeping books on the shelf.There was a biscuit box next to it. Lu Siyu opened it with his hands, and found that there were various bills inside, each of which was stacked squarely and neatly. He looked at the earliest bills, which were actually a few years ago.

"...Looking at this height, the murderer should be more than 1.7 meters five, and he was a man. At least, the person who connected the wires may be a man. The murderer should know the family of the deceased. Only acquaintances can know the location and situation of their house, and how to pull Incoming call, where is it tied? The murderer has some electrical knowledge and may have completed the operation with insulating gloves." Song Wen quickly made a judgment, then he looked outside the door and asked Zhang Haidao: "Is the physical evidence taken from the footprints at the door? ?"

Zhang Dahai said: "Captain Song, you also know that it rained heavily last night, and the people who reported the crime also watched at the door this morning, and there are not many valuable traces."

Song Wen didn't listen to his foolishness, thought for a while and said: "No. It rained last night, the soil at the door is damp, and the terrain is relatively high, so it is easier to leave footprints. And the murderer wants to place wires on the door, and he needs to leave The shutters of the door are very close, and that angle should be a dead angle, and the onlookers will not step on it."

Song Wen walked to the door and squatted down as he spoke. He saw two overlapping footprints at that position, and the pattern of one footprint on it was more obvious. Song Wen looked very familiar. Then he got a little angry and turned his head to look at Zhang Dahai, "Team Zhang, this is your shoe print."

Zhang Dahai saw that it was exactly the same as the footprints he had stepped on, and his face turned red, "Ah, that... this... probably because I didn't pay attention when I was looking at the wires in the morning..."

Zhang Dahai boasted that the scene was well protected when he went down to Haikou, but he was picked on by Lin Xiuran and Song Wen as soon as he came up, and destroyed important physical evidence, which was no less than two slaps in the face.He took it for granted that the yard was the scene of the crime before, and he didn't think about it carefully. In fact, the murderer didn't come in at all, and only stayed at the door.

Although Song Wen was angry, there was nothing he could do about the situation.Everyone knows that the scene must be protected, but in reality, the scene is often destroyed by the reporter or the crowd who came first, which will cause difficulties in the later detection.The forefoot part of the footprint in front of him had been damaged by Zhang Dahai, so it was blurred and unrecognizable, only the heel was left outside.

Song Wen raised his head and asked, "Did you take pictures here?"

Zhang Dahai just woke up like a dream, and asked the physical evidence to take pictures, and asked the criminal police below him to collect and measure footprints.

Seeing the flustered figures of several people, Captain Song, the workaholic, sighed helplessly. This group of pig teammates really couldn't be moved.

Lu Siyu walked over and took a look at the destroyed physical evidence: "At least half of the shoe prints are left on the back, let's take a picture first, and we can do partial footprint screening." He blinked, trying to visually distinguish the two shoes. The first footprint was peeled off, and after a while, he said again, "This footprint is about 43 yards, with a thick sole and a wavy pattern on the heel. From this, it can be judged that the person who connected the wires was a man with a height of about 180. Judging from the positions of the two footprints , This person's standing posture is a little bit in-toed."

Although Zhang Dahai was a little confused, he also knew the importance of footprints. He scratched his head and said, "I heard that there is an expert in the Provincial Police Academy who can tell who is who from who and who is not just by footprints, which is very amazing."

Lu Siyu looked up at him, and said calmly, "You probably mean my mentor."

Everyone's footprint is one of the most basic behavioral characteristics, which is related to a person's age, weight, height, and even past experience. There are no two identical fingerprints in this world. The same, even if they wear the same Shoes can't leave two identical footprints.After Wu Qing retired to the second line, he conducted systematic research on a series of crime scene evidence such as footprints and blood stains, and published several papers.Lu Siyu learned related criminal investigation techniques from him and benefited a lot.

Zhang Dahai smiled at Lu Siyu and accompanied him: "A famous teacher produces a good apprentice, then this case should be solved soon."

Lu Siyu ignored him, holding the camera and pressing the shutter button continuously.

"Expand the scope of the search and see if there are similar footprints in other places in the village. In the afternoon, you can delineate the suspects and try them one by one wearing similar shoes to see if they are the same person." Song Wen looked at the scene. He also warned: "After the electricity is turned on, measure the current and voltage on the door when it is charged. Be careful when measuring. After the test is finished, you should carefully remove it and check where the wires come from. , what brand, length, and what information is on it."

Zhang Dahai gritted his teeth and nodded. In Luning County, where he lives, there are only a few homicides a year. Most of them are relatively simple. There are either witnesses or passionate killings. If it weren't for the large number of deaths in this case, It's also weird, and it's not like calling Song Wen and the others.

Zhang Dahai is used to being domineering in this area, and everyone respectfully calls him Police Officer Zhang. The captain of the criminal police who has been called now acts vigorously and decisively, completely disregarding his face, which makes him angry and hate, but on the surface he must Listen to Song Wen.

During this period of time, Lin Xiuran finished inspecting the three corpses there, stood up and said: "On Zhou Chuguo's corpse here, there are some traces of fighting under the ribs and knees. Now it is impossible to judge whether these traces are related to the case. Several people They died from electric shocks almost at the same time, and the others have to go to the funeral parlor to see the results of the autopsy, so let’s split into two groups later.”

The car transporting the corpse had already parked at the door, it seemed that Lin Xiuran was in a hurry.Lao Li and several others helped Lin Xiuran carry the body to the car.

"Then we can contact you at any time." Song Wen sent Lin Xiuran away with a wave of his hand after speaking.He looked at the scene and concluded: "The man, about 180 tall, an acquaintance, has knowledge of electricians, and has an enmity with this family. There is time to commit crimes from last night to this morning. Captain Zhang, this is your site. Do you feel that there is something wrong?" Suspect?"

Zhang Dahai was a little afraid of Song Wen, thought for a while and said, "It seems that there are suspects... However, I haven't been back to the village for a long time, so I have to check it out."

Song Wendao: "Those who meet the requirements should be screened first. If there are key suspects, we will check them one by one."

Zhang Dahai nodded hurriedly: "Oh, yes, this matter is simple. I went back and checked the residents' information one by one. I guess there are only a dozen or so in this village who meet these points."

At this point, Lu Siyu frowned and said: "Officer Zhang, I saw a little boy's clothes at their house, and you also said that Yang Li has been helping her husband and raising her children at home, but where did their children go? "

At the mention of this remark, Zhang Dahai looked a little embarrassed, and coughed: "Zhou Chuguo and his wife have a son, but it's a bit miserable to say it. The child of this family drowned and died accidentally two months ago at the beginning of spring."

"Why didn't you say such important information just now?" Song Wen yelled at Zhang Dahai after hearing this.It stands to reason that this information should have been told to them when they arrived at the scene, but it turned out that Lu Siyu only said it when he saw it.

Zhang Dahai showed embarrassment: "This...you didn't ask just now."

"What a coincidence? Did he die by drowning?" Song Wen asked again with a frown. The family seemed to have been entrusted by the god of death. The son drowned two months ago, but something happened to the adults again.Although it was an accident, but this time point is too close. Perhaps, the child's accident is not simple, and it may have something to do with the current case.

Zhang Dahai explained: "Well... Anyway, the child went out to play with his father and lost it. Later, half of the village went to help find it, and finally found it by the river. At that time, it was just spring, and Xiaohe occasionally The water swells, and the water surface can reach the waist of an adult in less than a minute from the ankle, maybe the children didn't pay attention, and they caught up with the swell when they were playing."

"Then what happened afterwards? Did you have an autopsy? Are you sure it was an accident?" Song Wen continued to ask.

When Zhang Dahai mentioned this matter, he said angrily: "Their child is called Zhou Cong, who is only six and a half years old this year. The family members were unwilling to conduct an autopsy at that time, saying that they didn't want the child to die without a whole body. We were cautious at the time, and we still persuaded him to sign the autopsy." I did an autopsy, but when I cut open the body, it was all drowning, so the child was drowned! I had to sew it up again. Because of this, Zhou Chuguo didn’t give me a good face for a long time.”

Song Wensheng was afraid that there was something missing, so he asked Zhang Dahai again: "This family's house looks like a wealthy family from the outside. Why do they feel that life is a bit tight after entering?"

Zhang Dahai said: "Oh, that's because you don't know our customs here. On our side, there is a saying that goes, marry a wife with a fortune, and sell your daughter happily. Girls are rare here, and there are many men of the right age. This marriage market The price has been soaring, once we get married, including the dowry and other sevens and eights, and the gold and silver jewelry given to the woman, the total cost of holding the wedding is hundreds of thousands."

"For you urbanites, this may be toilet money, but for rural people, it is a lifetime savings...Many families grit their teeth to beg for a wife, or even borrow money to marry a wife. Some people If you have a son and a daughter, then sell your daughter and use the daughter’s dowry money to marry your daughter-in-law. When you get married, you have to serve wine and entertain the whole village. It’s not enough at all, it’s all about paying for the wedding.”

"It's the same with Zhou's family this week. They spent more than half of their savings to build a house. A few years ago, they spent the rest of the money to marry a wife, and they still owed a lot of debt. Now life can only be tight."

Song Wen sighed: "It looks like you are facing Nancheng here, why is the price of marriage higher than there?"

Zhang Dahai said with a smile: "The more rural the place is now, the more rules there are. Many girls want to leave here, and they are taken away by your urbanites."

Chatted with Zhang Dahai for a while, seeing that there were no other clues for a while, Song Wendao: "If there is no clue that the child's death is related to this incident, let's investigate this case first, and the rest will be troublesome." Officer Zhang." After saying this, he pulled Lu Siyu and said, "Come on, it's time for dinner, let's go eat."