I muttered, "But this Pengamu scientist is really unlucky, why are the other members of the expedition team safe and sound, and why he is alone in the west, it's a pity, it's too short-lived." ”

Xiao Fei suddenly said: "By the way, I used to see a very exciting, suspenseful article on the Internet, written amazingly, but I feel that most of it is fake, but it is well written, like suspense." This dried corpse case is very similar to "Murder on the Orient Express" written by British detective Queen Agatha Christie, in the same story, everyone committed the crime together, and in the end, although the great detective Poirot knew the truth, he still let go of the 12 people and chose to remain silent. So I thought it was very interesting, so I couldn't help but write it down, but the story is a bit long, and I'm afraid you'll talk about me again again. “

I couldn't wait to say, "Why don't you hurry up and say it, it's really an appetite for fishing." ”

Xiao Fei said unhurriedly: "Okay, let me think about it, where to start, that author is a forensic doctor, and I got acquainted with an old forensic doctor during this period." The old forensic doctor was highly respected, not only participated in the investigation of many major cases, but also had access to some secrets, including a strange case of the mysterious disappearance of scientific researchers. Then the old forensic doctor died. He went to pay homage to his old friend. After the old forensic doctor was cremated, his wife's ashes were placed in his former residence, which was in a courtyard near the Lama Temple. He had a verbal speculation with the old forensic doctor, and he had been a guest at his house several times, and the old forensic doctor's wife recognized him, and at that time, the old forensic doctor's unit disposed of all his belongings, and his wife did not get anything except some pensions. His wife chatted with the author for a long time, and finally asked him if he wanted to read the books left by the old forensic doctor, who had written several monographs, and there were piles of academic materials in the study, that is, peerless treasures. But things didn't develop like the plot, and none of the books and materials left by the old forensic doctor involved secrets or a major case, but were all about academic things. With the permission of his old forensic wife, he took some materials and books with him, because those things needed time to digest, and he couldn't memorize them all on the spot. The old forensic doctor's information had many personal notes, which were extremely valuable to him, and his wife knew that we had a good relationship and that there were very few colleagues who came to worship, so she took the initiative to give it to him as soon as she was moved. The man took the precious information seriously, but when he looked into it, it was not classified at all, but suddenly, halfway through it, he found that the old forensic doctor had written an email address and a series of numbers and letters that looked like a password in the corner of an inconspicuous page.

He immediately turned on his computer and logged in to the email address left by the old forensic doctor. The old forensic doctor is very traditional and conservative, and he usually doesn't use these digital technology products, and he thinks that since the old forensic doctor has marked the email, it must be very important. The moment he opened his email, the whole person was stunned, because it was his case diary. The case diary left by the old forensic doctor is very shocking, in addition to listing all kinds of real data, there are also important cases that have never been made public. “

I snorted angrily and said: "Xiaofei, you are indeed very good at telling stories, you are indeed verbose enough, you have been talking for a long time, which is equivalent to not saying anything, wasting my one mole of brain cells, hurry up, hurry, get to the point, otherwise I won't listen." “

Xiao Fei said with a hippie smile: "You, you are really anxious, you can't eat hot tofu in a hurry, okay, the following is the text left by the old forensic doctor: Many cases have secrets that cannot be said, as a forensic doctor, I have seen too many things like that, I really have a disturbed conscience, he has no courage and ability to publish the truth, so I have to write these words, I hope that one day those unsolved cases can be revealed to the world." The first case he wants to talk about is the Lop Nur corpse case, which has too many strange rumors, but none of them are close to the truth. On April 16, 2006, a day he will never forget, he was taken aback when he received a call from the relevant authorities, thinking that a national sensation was about to appear. It turned out that on April 11, 2005, a desert expedition team in Qili Town, Dunhuang City, found two dried corpses in the northwestern part of the Kumtag Desert. Later, the two dried corpses were transported to the Dunhuang Museum in Gansu Province, but they claimed that only one dried corpse had been found. When the dried corpses were found, someone spread the news, and people began to speculate whether it was the scientist who disappeared many years ago. On April 16, 2006, he received a phone call from the relevant authorities explaining to me what had happened and asking me to go to Dunhuang with another forensic doctor from Beijing. He was well aware of the importance of this task, and everyone was concerned about the identity of the cadaver, but if the results of the identification proved that the dead were indeed the scientist, then the cause of his death would be the biggest suspense, and soon they rushed to the Dunhuang Museum, took the hair, bones and skin from the cadaver and brought them back to the laboratory in Beijing, ready to analyze the samples. After the analysis was completed, we found the scientist's relatives through channels and hoped that he could provide DNA samples, but the process did not go smoothly. The longer the identification process dragged on, the more curious everyone became, whether the mystery could be solved by the forensic doctor, because they suspected that the dried corpse was the scientist Pengamu who disappeared in Lop Nur on June 17, 1980, and has since left infinite reverie for posterity.

The story I said is related to the third scientific expedition, and the first two times have been brushed aside, because Ziyue girl, you are not a monkey, so I will be concise and appalling, and the beginning is clear. Pengamu's third expedition originated in 1979 when the Sino-Japanese co-production "Silk Road" was made, part of which was to shoot Lop Nur. At that time, because Lop Nur involved military secrets, the Chinese Central Television was on the task of filming, but before filming began, Chinese scientists were required to explore the way, and Peng Jiamu was one of them. After the expedition, Peng Jiamu thought to himself that foreign explorers had written many books about Lop Nur, but few Chinese had gone deeper, so he later reported his idea to the Xinjiang branch of the Chinese Academy of Sciences, which in turn reported to the Chinese Academy of Sciences, which coordinated the military, and in 1980, a formal document approved the plan.

I involuntarily interrupted him: "By the way, isn't it just going to Lop Nur, why do you have to apply for approval, Mali is troublesome." ”

Xiao Fei smiled slightly: "Actually, it's very simple, Lop Nur was involved in military secrets at that time, and no one could enter it without getting a special pass from the army. Almost everything of the expedition team was prepared at the Malan base. The army's special canned luncheon meat, canned hot and sour white meat, mustard, rice, dried noodles, flour, and so on are all bought from the army. Without the help of the troops, the expedition team could not have moved in Lop Nur. The Malan base is also equipped with a radio station for the expedition team. The radio station was run by four fighters, who set up a telegraph relay point at a place codenamed 720, while another soldier named Ma Dashan carried the transmitter equipment on his back and followed the expedition team. However, after going deeper into Lop Nur for more than a month, Pengamu left a note saying "I'm going to look for water" and disappeared, when the military sent planes, cars, and thousands of people to search the stalls, but Pengamu was never found. In the past 20 years, many rumors have begun to appear, either that Pengamu has been picked up by aliens, or that Pengamu has defected to the Soviet Union, or that it is related to a secret project, so the world has disappeared, and there are even rumors that Pengamu's disappearance is related to a replication technology, and there are rumors that there are constant rumors anyway. ”

I couldn't help but say: "Wow, there are these interesting rumors, but he is so smart, so talented, and the country sent so many people to find him, which shows that Pengamu is really important, maybe the aliens really value his talent and take him to outer space, by the way, what other rumors, let's talk about it." ”

Xiao Fei said unhurriedly: "I'll save this for later, I haven't finished this story yet, it's too uncomfortable not to finish, like a fish in my throat, I don't vomit and I don't feel happy." He said that it wasn't until he saw the dried corpse and collected samples that I gradually dug up the answer to the deep burial. First of all, I have to confirm the mystery of identity, that is, whether the dried corpse is Pengamu himself, if it was before, I am afraid that I would not be able to complete the task, but with the development of DAN identification technology, the forensic doctor has been able to find out who the deceased is through DNA comparison. “

Hu Jiaojiao was also beside her, and after listening to a sentence or two, she was confused, and said puzzledly: "By the way, what are you talking about strange things, I really don't understand it at all, may I ask Brother Xiaofei, what you just said with relish, that is, what is DNA?"

Xiao Fei was embarrassed to refuse the beauty's request, and said tirelessly: "DNA is deoxyribonucleic acid, which dominates all the characteristics of people, all the genetic information of people is stored in DNA, and DNA exists in the cells of all parts of the human body. There will be similarities between relatives, that is, it depends on DNA, but DNA is the same as fingerprints, although the DNA between relatives is similar, but they are all unique, and almost no two people in the world have the same DNA. Even if 99.9% of the DNA is the same between people, the remaining 0.1% difference may be different, the substance that makes up the DNA is the base, and the 0.1% difference means that there are 3 million bases that are unique, and in the microscopic world, such a number of bases is enough to distinguish identities. "In modern society, everyone has heard of DNA technology, and it feels commonplace, Hu Jiaojiao, an ancient man thousands of years ago, was completely playing the piano to the cow, she nodded thoughtfully and said that you are talking too profoundly, I don't understand it at all, you or the two of you yourself slowly say, next time lend me all the ancient books you read, this book is annoyed if you read less, you don't understand anything, and you hate less when you use the book. ”

I said impatiently, "And how did the old doctor identify it?"

Xiao Fei said unhurriedly: "He wants to remove the hair of the dried corpse, and also collect the bones and skin of the dried corpse, is it not possible as long as it is the same? The answer is of course not." If the cadaver was really Pengamu, then the cadaver had been in the desert environment for 26 years. The DNA in the nucleus may have been damaged when the corpse is exposed for many years, and mitochondria can be extracted from the hair, and mitochondria also contain a small amount of DNA, and because mitochondrial DNA is circular, it is less easily damaged than the linear nuclear DNA. When dealing with corpses that have been dead for a long time, forensic doctors usually take bones for DNA identification, but if the death time is too long, the DNA in the bones will be degraded, and bacteria will destroy it, so it will be very difficult to extract DNA. Sometimes the skeletal identification fails, and the results don't come out in minutes. After he got the samples of the dried corpses, all the lab data was completed in less than a month, and then he waited for Pengamu's relatives to cooperate, as long as they provided the samples, the results were quickly available. However, Pengamu's children were initially uncooperative, believing that the dry corpse was not their father, and only after some people persuaded them to provide DNA samples for forensic comparison. When doing DNA comparison, he and other forensic doctors were also very nervous, and many leaders called to inquire about the results, and some even went to supervise the identification work in person. At that moment, he had an inexplicable premonition that the fog had not been completely revealed, and behind the dried corpse, there was a greater mystery involved. After careful examination, they finally concluded that the dried corpse was indeed Pengamu. After this result came out, no one breathed a sigh of relief, but everyone became more curious and nervous, everyone wanted to know why Pengamu disappeared and what was the cause of his death?

To tell the truth, in the process of identifying him, he studied the disappearance of Pengamu, ruled out surreal conjectures, and only thought from the perspective of forensic science, there were many illogical doubts in this case, Pengamu disappeared in Lop Nur, and it took 25 years before the body was found. Now that the identity of the body has been determined, the cause of death has become the most concerned thing for everyone, but to find the answer, after hearing the last words left by the corpse after 26 years, they still have to understand the specific situation on the day of Pengamu's disappearance. However, as early as when the identity of the dried corpse was identified, he already had eyebrows, and Pengamu could not have died of lack of water, or starved to death. Pengamu's cause of death was not that simple, and the case was much more complicated than they thought. He determined that Pengamu did not die of natural causes because of the presence of corpse wax on the dried corpses, which is very rare, which is the most bizarre thing. In forensic science, all nutrients except oxygen are not replenished, which is called complete starvation, and the resulting death is called starvation. In cases of death by starvation, the most typical features are dry skin, a decrease in blood, a decrease in the volume of internal organs, and the disappearance of fat. It would be doubtful if someone claimed that an old man was starved to death, but had a lot of fat. Moreover, if Pengamu really went out in search of water, and lost his way, he would have no water and food, and eventually he would have starved completely, and in the extremely dry area of Lop Nur, his fat would have disappeared completely, especially if the dried corpse had been in the desert for 25 years. In such an environment, the subcutaneous fat of the corpse will decompose fatty acids and glycerol, and the ammonia in the fatty acids and protein decomposition products will combine to form ammonium fatty acids, and the ammonium fatty acids will combine with calcium and magnesium in the water to form a gray-white waxy substance, which is corpse wax. That is to say, if there is no fat in the corpse, there is no corpse wax. If Pengamu's cause of death was starvation, then his fat would have disappeared completely, and even if there was some fat, it would not have been possible to form corpse wax in the extremely dry environment of Lop Nur. Based on the discovery of the corpse wax, I suspect that Pengamu did not die of natural causes, and what happened to him in Lop Nur is still a mystery, not at all as the outside world speculated. “

I thought for a while and said thoughtfully: "But what you said is not too reasonable, according to my research, it may also be buried by quicksand and ended life early, so that the corpse will have fat and corpse wax can also be formed." Under conditions of strong winds, strong light, and high temperatures, corpses can quickly dehydrate and turn into dried corpses. There is more than one dried corpse in Lop Nur, Dunhuang Desert and other areas, there are ancient and modern times, and the existence of dried corpses is the result of an abnormally dry climate. The dried corpses are all shriveled and thin, with a constricted cortex that clings to the skeleton, which is caused by the dehydration of the corpse. Generally speaking, before the bacteria and microorganisms are generated, the corpse is completely dehydrated, and the bacteria and microorganisms lose the conditions for survival, and the dried corpse is likely to form. “

Xiao Fei said unhurriedly: "I'm really in a hurry, I'm going to say it soon, although corpse wax is less common than dried corpses, it will also form corpse wax, and its waxing changes are generally only seen in the skin and subcutaneous fat, because in the waxing process of the corpse, most of the corruption is still going on, and after the local formation of corpse wax, most of the other tissues of the corpse, especially the internal organs, have been destroyed." Experts believe that this is because although the environment is dry, because part of the corpse has dried, its moisture is enough for the other part of the corpse to form corpse wax. The formation process of dried corpses can effectively retain certain personal characteristics and traces of violent effects (such as injuries and grooves), so it has certain forensic significance. I examined the dried corpse, and it had obvious signs of violence, which is why I determined that Pengamu had died of unnatural causes, not starvation, or accident. What struck me was that the traces of violence were so shocking that they were rare in my years of forensic career. So what happened to Pengamu at Lop Nur, and what were the astonishing traces of violence on the corpse? Who committed the crime? And most importantly, what was the motive for the killing?"

I was full of praise and said, "It's true that this article is so well written, it's completely eye-opening and incredible." And this author is really imaginative, his imagination is extremely rich, and his reasoning is complete, he is really a seamless detective, but most of it is fake. “

Xiao Fei said disapprerovingly: "Who knows if it's true or not, the real is always more exciting, and it's incredible, incredible, and unimaginable." “

I couldn't help but say, "Then why are they killing people, it doesn't feel reasonable, isn't it making it up?"

Xiaofei said: "I will briefly describe the case first, from cause to effect, so that everyone will understand the murderer's motive for killing." On May 8, 1980, Peng Jiamu led a comprehensive scientific expedition team into Lop Nur in Xinjiang to investigate, and the scientific expedition team successfully crossed the bottom of Lop Nur Lake from north to south, 20 days earlier than originally planned. After the completion of the original mission, Peng Jiamu suggested making full use of the originally planned scientific expedition time to continue the eastward scientific expedition, but in the later stage of the scientific expedition, the remaining gasoline and water of the scientific expedition team could only last for two days. On the morning of 17 June, Pengamu left me to look east for water, and after Peng's note at 17/610:30, he walked alone into the depths of the desert and never returned to the camp since. Not long after Pengamu's disappearance, the expedition team members drove an off-road vehicle to the east to find someone, and after driving more than a kilometer, they found a line of footprints, and believed that they were Pengamu's footprints. Therefore, the scientific expedition team members continued to search along the footprints, and on the sandbag about six kilometers away, Pengamu's footprints were still clearly visible, but no one could be found. At 2 o'clock in the evening, the expedition team still did not find Peng Jiamu, so they had to report the news of his disappearance to the garrison by telegram, and asked the garrison to immediately convey it to the Xinjiang Branch of the Chinese Academy of Sciences. At 9:56 a.m. the next day (June 18), the Z-5 helicopter No. 4641 took off from base 720, loaded with 250 kilograms of water, on the one hand, to find people, and on the other hand, to transport supplies for the expedition team. At 12:05 on the same day, the helicopter found the camp of the scientific expedition team east of Lop Nur, and then the helicopter searched for about 40 minutes, found nothing and returned to the camp of the scientific expedition team. For the third time (June 19), the scientific expedition team drove out to find people and found a line of eastward footprints in the old road of the Shule River. After identification, the footprints were leather shoe prints, the size of which was exactly the same as Pengamu's, and Pengamu was wearing a pair of suede shoes when he left. The expedition team followed the footprints to a mound more than a meter high and found a candy wrapper torn in half. The candy paper is beige and has the words "Qingdao Food Factory" printed with coconut toffee, and Peng Jiamu used to buy that kind of sugar. Then, the expedition team found an obvious trace of a person sitting on the mound, but the person was still not seen. Footprints, candy paper, and sitting prints were the key clues found during the search for Pengamu, but after repeated searches, no clues were found. Today, in addition to Peng Jiamu, 9 members of the scientific expedition team are still alive, and if you count Ma Dashan, a soldier with a telegram device on his back, 10 people are still alive. Lop Nur is like an isolated environment in the detectives, and if someone kills Pengamu, the murderer must be one of the 10 people. You must know that if you wanted to enter Lop Nur back then, you would not have been able to enter Lop Nur without a special pass from the military. In the past, the members of the scientific expedition team were all great, and the working environment was also very difficult, so I don't want to be suspicious, but looking at the facts of the case, there is one suspicious point that is the most obvious, that is, footprints and sitting marks. At the time of Pengamu's disappearance, the military had conducted four large-scale searches in the sky and on the ground, but there was still no trace of the body, which showed that the body was most likely covered by the wind and sand. In Lop Nur, it is common for the wind and sand to be strong, and sometimes the tents will be lifted. If the corpse is covered by the wind and sand, Pengamu's footprints should disappear completely, and even the candy wrapper will be blown away, after all, to cover a person, the surrounding wind and sand should be very large, then it will be easier to cover the footprints. On the second and third days after Pengamu's disappearance, the expedition team was able to find footprints, which is unlikely in Lop Nur, which is often windy and sandy. What's even more suspicious is that in the process of finding people, only the people of the scientific expedition team have seen footprints.

So, why did the expedition team lie? Is the murderer really between them? The truth is here, and I will explain what the traces of violence on the corpse were: there were 3 blunt wounds to the head, 11 sharp wounds to the limbs, and 27 sharp wounds to the chest, abdomen, and back. If it weren't for the fact that the person was dead and the corpse had become a dried corpse, then the murder scene must have been extremely bloody and terrifying. Pengamu's wound was not caused by an animal bite, and Lop Nur was in a special environment, and the only person who had a chance to commit the crime was someone from the expedition team. But who was it? Why did the expedition team lie together and find footprints, sitting seals, and candy wrappers? He met with 10 people to listen to the case statement. At the beginning, I briefly told them the results of the autopsy of the dried corpse and the analysis of the case, and they panicked when they heard it. The process was completely confidential, the atmosphere was very serious, and the members of the scientific expedition team were under great psychological pressure, and after a long period of justification, they knew that they could not hide it, and only then did they tell the shocking truth. According to the statements of the 10 people, he learned that the supplies of the scientific expedition team were no longer enough, and Comrade Peng Jiamu seemed to insist on continuing to go deep into Lop Nur and bring everyone into a situation of death.

The expedition team wanted to ask the military for help, but Pengamu said that it was too expensive to transport water by helicopter. A one-hour helicopter flight costs more than 2,000 yuan, which was the price at that time, and it takes several hours to fly back and forth from a nearby garrison base, and it costs tens of thousands of yuan of state funds to transport water. Naturally, they searched according to the map, but did not find a well, and one of the members of the hydrogeology team analyzed that there could be no water in that area, and the scientific expedition team fell into a desperate situation. In such an environment, human nature is often tested, and the relationship between people will become very delicate. As long as we look at this case rationally, we will find the following doubts. First of all, the wind and sand in Lop Nur are so big, the corpses are gone, and the footprints can still be seen on the second and third days of Pengamu's disappearance? Second, the scientific expedition team carried guns, and after Pengamu disappeared, the relevant departments checked the guns and bullets, and the bullets were missing, and the later explanation was that the scientific expedition team hunted wild camels. In order to make specimens of wild camels, they skinned the wild camels and took the flesh, leaving only the bones. In this way, everyone's clothes were bloody, and the purpose of the bullets was reasonably explained, but the bone specimens of wild camels were not injured by firearms and could be said to be intact. Maybe the bullet didn't hurt the bones, but if you really want to kill the wild camel, the destructive force formed by the bullet after entering the body of the wild camel is difficult not to hurt the bones, so in the end the author didn't say who the murderer was, because they were all accomplices, to be honest, this dried corpse case is very similar to the popular "Murder on the Orient Express" written by the British detective queen Agatha Christie, in the story, everyone committed the crime together, and in the end, although the great detective Poirot knew the truth, he still let go of the 12 people and chose to be silent. “

I said silently: " It's really a brain-opening article, it no longer matters how the truth is, because human nature really can't stand the test, especially under extreme conditions, in history, ancient and modern China and foreign countries have had such examples, and in extreme cases, in a desperate situation, in order to survive, there was a tragedy of cannibalism, human nature is sometimes extremely evil, so, it makes people think carefully and fear, people's hearts are as deep as the sea, difficult to fathom, sometimes more kind than angels, sometimes more evil than demons, just like Ang Lee wrote a juvenile pie, I hope this is not the truth, it is made up, I really can't accept such a truth, I still prefer to accept the statement of supernatural power。 “..