Click to see more answers: crimaster crime master answers daquan
Answer analysis
Case introduction
On the afternoon of June 5438+February 65438+February 08, 2020, Hebei police received a report that a swimmer had an accident while training alone in Song Qian Swimming Training Center, and the police immediately blocked the scene for investigation. Considering the possibility of homicide, the police identified four suspects according to the social relationship of the deceased. Due to the complexity of the details of the case, the police have now decided to make the case information public, hoping that detectives around the world can provide relevant evidence and ideas.
Victim: Huma
Criminal suspects: Gu Ya (cleaner), Qiu (doctor), Zheng Tuan (teammate), (captain).
Black boy: Li Mingyue (leader)
Answer analysis:
After further autopsy by forensic doctors, it was found that the deceased had been injected with Botox before his death. A large amount of Botox caused the muscles of the lower body to relax and paralyze, which caused the deceased to lose strength during training, unable to surface, and drowned during the struggle.
Subsequently, under the identification of the cleaner Guya, the police found the domestic garbage discarded by Guya in the nearby trash can and found the sealed medicine bottle used by Huma that day. After testing the medicine bottle, the police successfully detected the botulinum residue in the prednisolone medicine bottle. Finally, by investigating the bank accounts and telephone records of four people, the police discovered the fact that the suspect Li Mingyue bought Botox in a plastic surgery hospital and contacted a processing factory to make medicine bottles. Under the pressure of overwhelming evidence, Li Mingyue finally admitted his crime.
Key points of solving the case: 1. What was the cause of death of the deceased; 2. Who has the opportunity to poison?
Reasoning ideas:
65438+February 1 1, 2020 2 1: 36, Qinghai Province.
1. First of all, suspects can be classified according to their motives. Starting from the clue, Gu Ya, the cleaner, has the least motive for killing. News records in Zhang Xia prove that quaint people have different plans for this work. Combined with the guide film bought five days ago and the white precipitate in the deceased's cup, it can be inferred that quaint's purpose that day was to drug the deceased's cup. The diving competition on the night of the incident and the list of participants were marked with photos of Guya and his son, so it can be inferred that Zhang Feng is a swimmer.
Judging from the overall clue, there is no big contradiction between quaint and the dead. The only conflict was the game that afternoon. Quaint only needs to keep the dead from participating in the competition. Among them, the main function of the gonorrhea membrane is diarrhea, which will not lead to drowning of the deceased. At the same time, according to the white precipitation of sports drinks, it can be found that the purpose of guiding the film has been achieved, and there is no need to kill people, so Gu Ya is ruled out.
(Daozhi tablets: also known as phenolphthalein tablets, are used to treat habitual and intractable constipation, and diarrhea will occur after eating. They are common laxatives. Analysis of quaint story: quaint was once an amateur swimmer. After she got married, her son also fell in love with swimming. A month ago, Zhang Feng and quaint husband Zhang Li naturally became swimmers. He is hospitalized with uremia and needs expensive dialysis to maintain his life. The only way to stop dialysis is kidney transplantation, but the matching kidney transplantation is expensive and the family can't afford it. Guya has confidence in her son's skills, but the only obstacle is that she has won all the honors and surpassed her son's Huma in hard power. To this end, she took the opportunity to sneak into the training center and wait for an opportunity to frame Huma so that she could not participate in the competition.
On the day of the crime, that is, before the game, Guya sneaked into the dressing room, opened Huma's wardrobe with a pre-prepared unlocking tool when no one was around, and added crushed powder to Huma's sports drink. As long as Hu Ma drinks it after exercise, it will affect the performance of the competition or even withdraw from the competition because of strong diarrhea, thus achieving the purpose of caring for elegance.
Secondly, it can be ruled out by the detailed information of the crime scene and the deceased. The deceased was a professional swimmer. If there is no interference from other external conditions, even if he makes a mistake, he can't easily drown in the water, so the possibility of an accident can be basically ruled out. Two possible causes of death can be inferred from the autopsy report. 1. Intake of a muscle toxin through a pinhole below the knee leads to muscle weakness or intake of a highly toxic toxin, so that the deceased cannot surface after the onset. Someone forced the dead into the water and finally drowned the dead.
At about 16:30 pm, quaint witnessed the face-to-face conflict between Zheng Tuan and the deceased, and stopped it in time. At this point, the deceased was still alive. In other words, the only time that Zheng Tuan committed the crime was between 16: 40 and 16: 48, when quaint left. As far as drowning is concerned, 8 minutes is enough, but according to the location where the deceased drowned. The deceased died in the middle of the fifth lane counted from the left, that is, the distance from the right bank was 4*2.5= 10 m, and the distance from the left bank was 5*2.5= 12.5 m (not counting the slight displacement of the deceased's body caused by water flow). There are only two possibilities for the victim to appear in this position. (1) Zheng Tuan struggled with the dead in this position, and then pressed the dead to. (2) Zheng Tuan randomly drowned the deceased and dragged the body to the sinking position.
But no matter what the possibility, Zheng Tuan's body will definitely be wet, and the sweater stained with water is more difficult to dry, while Zheng Tuan's sweater is completely dry, which proves that he has not been exposed to water during the period. The tears in the sweater were left when two people argued. The polyester fiber under the victim's fingernails confirmed that Zheng Tuan had not changed the sweater he was wearing.
As for the yellow sweater in quaint confession, it is because quaint suffers from congenital red-green color blindness and mistook the red sweater worn by Zheng Tuan for yellow. The special color-blind glasses found in the locker prove this.
Enchroma is a special corrective sunglasses for color blindness. )
(Little popular science: China's motor vehicle driver's license clearly stipulates that people who are red and green blind are not allowed to take the driver's license test and drive a motor vehicle, because people who are red and green blind can't recognize traffic lights, and even after strict training, accidents may occur. In order to avoid traffic accidents and accidents, this regulation is formulated. This is not discrimination against color blindness, but a guarantee for everyone's life. )
Because Zheng Tuan didn't touch the water in the swimming pool, and the deceased didn't eat toxic substances, the poisoning was only because there was a pinhole under his knee, so Zheng Tuan was ruled out.
Analysis of Zheng Tuan's story: Zheng Tuan, like all athletes, dreams of getting a better ranking and standing on a higher podium. His repeated awards made Hu Ma jealous. In a competition, Hu Ma added online shopping norolone phenylpropionate to Zheng Tuan's water cup, which led to Zheng Tuan's urine test being found to be taking stimulants and being banned for 9 months.
Zheng Tuan was very angry about this. In the afternoon, he confronted the most suspected flax, and even almost fought, but Zheng Tuan didn't want to kill flax, because as long as he found evidence that flax framed himself, he could prove his innocence.
Novonone phenylpropionate is a anabolic steroid drug in protein, which has a strong protein synthesis. On the one hand, protein assimilation can increase muscle strength, on the other hand, it can reduce myocardial oxygen consumption and enhance exercise level. It is forbidden to use this drug in sports competitions. )
3. Excluding drowning by intentionally pressing into the water, then the only cause of death of the deceased is injection of toxins, and Qiu, who prepared a sealing needle for the deceased, is even more suspicious.
Qiu's motivation when he was a surgeon was to operate. It can be seen from Li's anonymous blackmail that this action was not accidental, but intentional. Huma and Li Zhi often use this to blackmail Qiu.
But in fact, it can be seen from the mail of the detective agency that Qiu didn't know who the blackmailer was when he committed the crime, so he entrusted the detective agency to find out the account information of the blackmailer for himself. At 9: 22 am on February 18, the detective agency sent an email to inform Qiu that the identity of the blackmailer could not be found for the time being.
From the time line, there are two situations: 1. Qiu didn't lie; Look at Qiu lying. If Qiu didn't lie, because Qiu wasn't in the infirmary that morning, Qiu couldn't have taken the initiative to ingest toxins into the body of the deceased during that time. Suppose Qiu lied, and the deceased didn't inject the toxin that morning. According to the monitoring, Qiu didn't meet the deceased in the infirmary, which ruled out the possibility of Qiu lying on the timeline, but the drugs belonged to the infirmary, so Qiu was still suspected. But judging from the time when the killer injected the poison, the killer's purpose was to hide his behavior. Therefore, if Qiu is the murderer, his means of committing crimes conflicts with his purpose, and since he is the person who prepares drugs, the first suspect of this means is Qiu himself, which contradicts other acts of the murderer. Therefore, Qiu's suspicion is self-defeating. At the same time, because the deceased's chocolate was not eaten, Qiu was excluded as a poison in chocolate, so Qiu was excluded as a suspect.
Qiu story analysis: Qiu worked as a resident singer in a nightclub when he was a student, thus consolidating a girlfriend who also loved singing. The girlfriend was brilliant and was quickly signed by the brokerage company.
They wandered together for five years, and when they reached the stage of talking about marriage, they ended up because the woman cheated. Qiu's personality is stubborn and extreme. After the other party betrayed him, he decided to take revenge. At this time, he seized an opportunity to completely destroy the lover who betrayed him. He bribed the surgeon Li Zhi privately and replaced the surgeon in charge of thyroid surgery for his ex-girlfriend with himself. During the operation, he deliberately cut off his ex-girlfriend's vagus nerve, which made him unable to sing for life, while he was fired and paid a large amount of compensation, which made it difficult for him to find a job in the industry. Qiu didn't regret it, but after the operation, Li Zhi, a surgeon who learned the truth, began to blackmail Qiu frequently, which is why Huma blackmailed anonymously.
At a party, Li Zhi once again blackmailed Qiu through WeChat. After paying the money, Qiu left her seat and left her mobile phone on the table, inadvertently letting Hu Ma know about it. Hu Ma, who has ulterior motives, took photos of Qiu and Li Zhi's chat records and started a long-term anonymous blackmail. After confirming that Li Zhi didn't leak the news, Qiu asked a private detective to help him investigate the identity of the other party. On the morning of the crime, Qiu received a letter from a detective. The other party told Qiu that the identity of the blackmailer needed more detailed information to investigate, so Qiu left the training center during working hours and went to the detective agency to provide information. But he didn't know who the blackmailer was until Huma drowned.
(Vagus nerve is the longest and most widely distributed brain nerve, and vagus nerve injury can lead to. When one glossopharyngeal nerve, vagus nerve or its nucleus is damaged, pharyngeal reflex paralysis, choking cough and hoarseness of the ipsilateral soft palate may occur. When bilateral injuries occur, patients have serious obstacles in eating, swallowing and pronouncing, and even can't pronounce in severe cases. Therefore, once the vagus nerve breaks, it will cause irreversible harm to the patient. )
Lidocaine and prednisolone are commonly used drugs for blocking needles, which have anti-inflammatory and analgesic effects, but the side effects of blocking needles are also very obvious. Long-term dependence will lead to osteoporosis, femoral head necrosis, endocrine disorders and other adverse consequences. )
Truth:
Li Mingyue, who is outgoing and bold, fell in love with Huma from the first moment she saw her. They naturally fell in love, but Huma grew cold. All this is caused by Li Mingyue's imperfection. She thought of plastic surgery. Under the introduction of her business card, she had an operation in a plastic surgery hospital. What she didn't expect was that the result of plastic surgery was very bad. Sanwu Plastic Surgery Hospital changed Li Mingyue's normal face.
Knowing that Li Mingyue's plastic surgery failed, Huma not only failed to comfort her, but broke up in public at her birthday party and made a cruel insult to her. At that time, Li Mingyue was no longer a beloved female leader. Facing the face of plastic surgery failure and the malicious remarks of the team, an unprecedented hatred grew in her heart. She was self-abased and gradually distorted under pressure. Huma ruined her, and she wanted revenge. In order to make the plan go smoothly, Li Mingyue took the risk of having a second plastic surgery.
Li Mingyue knew that Huma would go to the infirmary for an injection to relieve the pain before attending a major competition. She decided to use human habits to kill each other. To this end, she abandoned her body and reputation and began to have a relationship with Qiu privately, which laid the foundation for her plan.
First, she contacted the hospital where cosmetic surgery failed, demanding high concentrations of Botox and some prednisolone. At the same time, in a tryst with Qiu, she investigated the content and brand of the long-term injection of closed drugs by Huma. After the investigation, we contacted the processing factory to make the same prednisolone bottle for it, and mixed Botox with prednisolone in the production process, and then sealed the bottle by a special person.
On the day of the crime, I had a tryst with Qiu in the infirmary before Huma's injection. I planned to take advantage of it and replace the prednisolone prepared by the other party with my own medicine bottle. He wanted to kill Huma in this way and frame Qiu, and the phone call from the detective agency also made Qiu leave for five minutes briefly, which provided an opportunity for dressing change. However, because Qiu went to the detective agency that morning and did not take the initiative to inject drugs for the other party, Qiu had no relevant legal responsibility in this case.
At 6:5438+05: 10 on the day of the crime, Huma went to the infirmary to seek Qiu's help. Due to the appearance of physiological symptoms of botulinum, Huma began to have symptoms of weakness in both legs and general weakness. Qiu, however, learned that the other party had injected a blocking needle, without considering other aspects, mistakenly thought that the other party was suffering from hypoglycemia caused by fatigue, and gave him sugar twice to replenish energy, which missed the best opportunity to save Huma.
In order to ensure that Huma was not rescued after falling into the swimming pool, Li Mingyue had to ensure that Huma was the only one training in the basement, so she put a document on the seat outside the swimming pool in advance, and then used it as an excuse to go downstairs to confirm that no other personnel remained at the crime scene during the training time of the deceased, that is, 17:00.
After confirming that there was no one in the basement, Li Mingyue, who thought everything was all right, took the prepared documents, recorded the information that he had left the basement in the camera, and then returned to his office.
After Zheng Tuan left, Huma, who felt very tired, did not leave the swimming pool, and her physical discomfort was only considered as ordinary hypoglycemia. Sticking to the rules, in order to get good results in the competition, he began to warm up in the swimming pool, and eventually he was paralyzed by toxins during swimming and soon stopped breathing in the water.
In the field of cosmetic surgery, the toxin secreted by Botox can block nerve endings from secreting acetylcholine which can make muscles contract, thus paralyzing muscles and reducing wrinkles. However, botulinum toxin is very harmful to human body, which will affect the transmission of nerve impulses and lead to muscle flaccid paralysis, and the side effects are more obvious when injected directly into the knee. This is why the victim drowned. )
Summary: In recent years, cosmetic surgery has gradually become popular, and face value has suddenly become an indispensable condition for people to find a partner. Li Mingyue's experience made her embark on the road of crime, and the starting point of everything came from the judge by appearances and abandonment of human beings. Too many women lose confidence because of the social requirements for appearance, and plastic surgery has become their way of venting. Different personal choices are inevitable; However, it is more desirable to hold different views and still respect each other. However, if Li Mingyue can be more confident and human beings can be more tolerant, many contradictions may disappear.
On the other hand, in competition, we often say that friendship comes first and competition comes second. The competition is to verify the strength fairly and fairly, not to plant and frame up for profit. The behavior of Hu Ma Gu Ya and others is also undesirable.
At the same time, as a doctor, you can't take revenge because of some emotional or interest disputes. The essence of a doctor is to save people, not harm them. Qiu in the article obviously has no doctor's consciousness and has no awe of this sacred profession.