Evidence hunting forensic 4 unsolved case code

"The deceased was a female named Li Wen'er, a resident here. She was 26 years old. The cause of death was cutting her throat with a sharp weapon and killing her with a single knife. The murder weapon was about 35 to [-] centimeters long and had a single blade. Judging by the degree of accuracy, the time of death was between [-]:[-] am and [-]:[-] am yesterday, there were no other obvious injuries on the body surface, and the pre-sperm/spot test showed that there were semen/fluid residues."

Gao Ren repeated the current situation to Tang Zhexue who had just rushed to the scene, and Gao Ren turned his head and went into the house to continue working.There was too much blood, except for the technical personnel who had to enter, everyone could only stay outside the bedroom, so as not to interfere with the forensics with their footprints.When a person is alive, due to the existence of blood pressure, the blood ejected from the damaged aorta can be two or three meters away, and the blood spattering three feet is actually less.

The ceiling, the bed, the floor, the furniture, everything in sight is a dazzling black and red.A touch of pure white stands out in the midst of unpleasant sights.It was a white rose, with budding buds, inserted straight into the young girl's neck, and at first glance it looked like it had grown out of a wound.I don't know if it was nourished by the blood, but there is a touch of seductive pink at the bottom of the petals.

"This picture looks familiar, right?"

Luo Jianan held an unlit cigarette in his mouth, put his elbow on Tang Zhexue's shoulder, squinted his eyes into the room, and examined everything he could see.He has been a police officer for many years, and this is the bloodiest scene he has ever seen with his own eyes.And it was the white rose that prompted him to call Tang Zhe here.About nine years ago, when he had not returned to the police force, there was also such a rape/murder case-a woman living alone, her throat was cut with a sharp knife after being assaulted, and a white rose was inserted in the wound. The scene was also bloody, Everywhere is bright red.

Tang Zhexue read the dossier, and according to the on-site inspection, it was judged that the murderer entered the room through the bedroom window. Here we need to draw a key point: the deceased lived on the fifth floor.There was no ladder outside the window, and there was a bowl-thick drainpipe thirty centimeters from the window frame, so the only way for the murderer to enter the room of the deceased was to climb up to the fifth floor along the drainpipe with bare hands.Although no fingerprints were extracted, the shoe prints near the drain were consistent with those left on the window sill and indoors, which basically confirmed the inference.

Is this kind of thing common people can do?Absolutely not.So it was speculated that the murderer was probably a retired special soldier.However, according to this line of thought, no suspects matching the DNA left at the scene could be found.

Fade Chen is here today, and the case has not been solved before, which is his heart disease.Right now he is not upstairs, and Du Haiwei is downstairs to study how the murderer got up.Judging from the footprints left on the window sill, the murderer also entered the house through the window. The crime took place on the eighth floor, and there was no drainage pipe outside.There is a neat row of racks for outdoor units, so the murderer should have climbed up by grabbing those racks.It's not something that ordinary people can do. If you climb the eighth floor with bare hands, you will fall to your death if your foot slips.

At this time, Lin Dong's phone chased him, Tang Zhexue interrupted the call back to the video, and showed him the scene with his mobile phone.There was silence at the end of the video for a long time, and he asked, "Is there blood in the bathroom?"

In the previous case, the murderer took a shower after committing the crime, and blood was found in the bathroom drain, which was confirmed by DNA testing to be consistent with the deceased.Tang Zhe called Huang Zhiwei and asked if he had checked the bathroom.Huang Zhiwei complained, "I just came here too", and then went into the bathroom with the inspection box.After a while, the answer was given - yes, the human blood reaction in the toilet drain was positive.

"It seems that the same murderer really did it." Lin Dong breathed out quietly, "Hang up first, I'll call Team Chen."

Although I am a little sorry for the deceased, being able to investigate the case with the serious crime team is indeed a good opportunity to repair the relationship between departments.Tang Zhexue hung up the video and continued to observe the situation inside the house.There were no signs of struggle or fighting in the room. Except for the bed being a bit messy, everything else was well placed.Combined with the time of death given by Qi Ming and the others, it can be judged that the murderer sneaked into the room while the deceased was asleep to carry out the infringement. When the deceased woke up and found that something was wrong, he lost the opportunity to resist and call for help.

So did the deceased recognize the murderer?It's hard to judge based on the scene alone.What can be judged at present is that the murderer did not choose the target randomly on a temporary basis.Knowing that the deceased lived alone and knew the time of work and rest, even if they didn't know each other, the murderer must have stepped on a little bit, and even followed the deceased.

Lu Yuanqiao took Ou Jian to adjust the surveillance, and Luo Jianan asked to find the footage of the deceased entering and leaving the community recently to see if anyone was following him, and then cross-compare the people who had entered and exited the community before and after the time of the incident.However, he didn't report much hope that he could be caught from the surveillance.He felt that the murderer left the DNA not because of recklessness or mistakes, but because he didn't care. It could even be said that he was provoking the police—I'll give you evidence, come and arrest me.

After the initial inspection, Qi Ming came out of the bedroom, took off the contaminated gloves and shoe covers, and shook his head at Luo Jianan and Tang Zhexue: "This man is a lunatic."

"How to say?" Luo Jianan frowned.

"According to the traces of blood splatter, when the murderer cut the neck of the deceased with a knife, he was still in the process of violating her." Qi Ming stated calmly, but there was a trace of disgust in his eyes, "His body blocked part of the sprayed water. Blood, it's like... a shower of human blood."

Pinching off the cigarette dangling from his mouth, Luo Jianan cursed in a low voice, "Damn perverted".The previous case was also in a similar situation, but looking at the file and seeing the scene are two different things. The intuitive visual impact allows people to fully imagine the situation at the time of the crime.In the process of doing business, how many perverted people can do it in a rain of blood?

The deceased's parents were out of town, and Miao Hong had already contacted them, saying that she planned to come over overnight.Li Wen'er is not a local. Not long after she graduated from graduate school, she works in a foreign bank. She rented this house, and the person who called the police was the landlord.

The landlord said that Li Wen'er usually had a good relationship with him, like sisters, and sometimes they would go shopping and eat together.On the weekend, Li Wen'er called her and said that the microwave oven at home was broken, and asked her if she could replace it.She brought a new microwave oven here today, knocked on the door for a long time and couldn't open it, thinking that Li Wen'er was still off work, so she took the spare key to open the door.Li Wen'er asked her to leave a key, saying that he was away alone, and if he forgot the key, someone would help to open the door.As a result, she was paralyzed with fright as soon as she entered, the room was filled with the smell of blood, and Li Wener's dead body lay on the bed in the wide open bedroom door.

I asked Li Wener if he had any close male friends, and the landlord said yes. When she was delivering things to Li Wener, she saw a foreigner in the house, wearing only a pair of sweatpants, with the upper body naked, and a good figure. muscular.

Qi Ming asked: "What color is that foreigner's hair? How long is it?"

Just now Huang Zhiwei took out a lump of hair from the bathroom sink, and the murderer took a shower, so no matter how long or short the hair is, there will be some left over.

"Blonde, a little brown." The landlord's voice was trembling, his face was pale, and he seemed terribly frightened, "It's just like your... hairstyle..."

In order to keep the original black and long straight hair, Qi Ming has been reluctant to cut his hair since the eye surgery. Now the front is too long, covering the eyes. He usually wears a hairpin in the office, and wears a headgear when he is on the scene. He has to wear a half ponytail .Before Luo Jianan couldn't help playing with his little braid, he was pricked with a scalpel before he could remember.

With semi-long hair like his, the naked eye can basically tell it out.Qi Ming turned around and went to Huang Zhiwei to ask for the ball of hair, to see if he could pick out the blonde hair.It would be the easiest way to locate the suspect during the investigation stage, but no, they all have black hair.Li Wener's hair was also black and hadn't been dyed, so this clump of hair was basically useless.Fortunately, there is semen/fluid left over, and DNA is the best evidence.

Tang Zhexue looked at Qi Ming and that tossing hair and felt a little sick.The one on the long head is fine, just don’t fall off and still clump up, it’s uncomfortable to watch.Dog hair and cat hair are fine, even if a big ball is brushed off by the cubs every day, he can hold it in his hands without any hindrance, except for human hair, especially the wet hair ball, which can be overcome no matter what There is no such thing as a psychological barrier that you don't want to touch when you look at it.When he was studying psychology, he checked some information and found that there were quite a few people with this problem, but Lin Dong was fine, so the job of cleaning the bathroom at home has always been left to him.

In order to keep the clump of hair out of sight, he hid outside the cordon to smoke, washing away the bloody smell from his brain.After a while, Luo Jianan also came out, and finally lit up the cigarette he had been holding, and let out a long breath: "Erji, when the case discussion meeting is held later, you can give the briefing of the old case to our team for a while." , except for my master and Team Chen, no one else in the team has ever handled that case."

"Well, I know, I just sent a message to Lan Lan, and she will get it when she arrives at work tomorrow morning." Tang Zhexue covered her mouth and yawned.Don't look at the low alcohol content of the rice wine, it really has some stamina.

"Sleepy? Come on, I'll wake you up." Luo Jianan turned his head inward, "What do you think?"

After organizing the language a bit, Tang Zhexue said: "The murderer is physically strong, sophisticated in his modus operandi, meticulous in planning and calm in action, and extremely conceited. What is certain is that he has not left any traces in the system that can be checked. He is not a criminal. If He also did the case nine years ago, so this person is at least 40 years old. I thought that the direction of retired special forces should be right, or he may have experienced other special training professions, such as rock climbers... But Judging from the current situation, regardless of occupation, I think we can start the investigation with the white rose, after all, he must have a place to buy flowers."

"Well, I think so too. If the murderer is really a retired special soldier, then don't plan to count on the surveillance. You're not even afraid of leaving DNA, and it's unlikely that the surveillance will take a good look at you." Luo Jianan nodded, "Well, tomorrow, I'll take someone to her unit, first look for the foreigner, and investigate the social relationship of the deceased. As for the flower shop, let's split it up?"

"Okay, but I have to go to the detention center to identify the scene of the crime tomorrow morning, and it will start in the afternoon at the earliest."

Although the flood discharge channel has been filled, but the necessary procedures must be followed, Tang Zhexue probably won't be able to go to the airport to pick up Lin Dong.And judging from today's battle, it should be a wise choice to send the cubs to be raised by the second Berna early tomorrow morning.

"Hey, I'm so busy every day." Luo Jianan raised his hand and knocked on his forehead with the heel of his palm, and suddenly remembered something, "Oh, by the way, how long does the little actor have to stay with you?"

Tang Zhexue looked up and thought for a while: "Deputy Director Sheng said that it might take a month."

Luo Jianan sucked his teeth, and said in a sour tone: "You can help brother to watch him, don't go to the forensic office if you have nothing to do, chat with whoever you catch, your ass looks like it's stuck to a chair, we pray to the teacher Are you still working?"

"Why am I not working?"

Hearing Qi Ming's dissatisfaction coming from behind, Luo Jianan's expression froze immediately, and he turned around and smiled at the person: "No, no, I'm not talking about you, I'm talking about Guo Haoxuan, he always drags you to chat, don't bother me Do you work?"

Qi Ming said frankly: "I am happy to chat with him, and it will help improve work efficiency."

Seeing the corners of Luo Jianan's mouth twitching, Tang Zhexue silently pinched his cigarette, and used the excuse to go downstairs to find Fade Chen, avoiding the place of right and wrong.It's no wonder that even Lin Dong can be taken aback by Qi Ming, this EQ is really no one else.Before chatting with Luo Jianan about the popular science video made by Qi Ming, this brother looked up to the sky and sighed——

"Er Ji, do you know, I asked Qi Ming, who is cuter compared to me and maggots, unexpectedly, he hesitated."

TBC

The author has something to say:

Teacher Qi: Want to hear the truth?

Brother Nan is so insecure that he has to compare himself with maggots... I found that when writing the younger generation, it was obviously much easier than "Serious Cases Brigade". Although the scene was tragic, everyone was full of pistachios. It all depends on Lao Jia working hard to make jokes

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