wholesale silk tassels for jewelry How did Li Changyu solve the case?

china wholesale beads jewelry supplies Those classic cases detected by Dr. Li Changyu:
1, "sawing wood" murder.
In the disappearance of the stewardess of Pan -American Airlines, her husband was considered the biggest suspect, but the man passed the pilot test three times. However, some people later reported that the victim's husband had dragged a large sawing wooden machine on the street that night, and he also rented a meat grinder that day.
The cold winter, Li Changyu managed to melt more than two feet deep snow to find evidence, and mixed with a frozen dead pig in the branches and stuffed with a broken wooden machine for restoration experiments. In the end, he found 56 broken bones, 2660 hair, 3 ounces of meat and a teeth. The total weight of these evidence was only 31 grams, but the victim's DNA accurately measured.
Sub -then, the police found a chainsaw that had been worn. Li Changyu showed the coated chainsaw number through scientific methods, and finally found out that the murderer was the husband of the deceased.
2, half a fingerprint breaks for 30 years.
At noon a day, a 18 -year -old girl went to an indoor parking lot in a shopping center. Her car parked on the 7th floor, but some people found her body at the stairs on the 9th floor. A stabbing thorn on the left chest, piercing the heart. Girls' clothes are neat, without any signs of sexual assault, but her shoes and bags are gone. A handkerchief was found next to the car, and there was no result after inspection.
This case became a "hanging case". For more than a decade, the deceased's father has not given up the efforts of the murderer, and sold his family production uniformly. He found Li Changyu.
In on -site photos, Li Changyu found that there was a blood fingerprint on the paper tissue box on the back of the car. They found this tissue box, but those who handled the physical evidence used the wrong medicine that year, and no clues were left. Li Changyu took a try mentality, re -used chemical agents and laser, and kung fu, and finally let him find half fingerprints. However, when they searched in the fingerprint file, there was no matching information. Obviously, the murderer had no record of crimes before.
Until the death of the deceased's father, the case has not been broken. Li Changyu's team has never given up on this case. Two years later, a woman entered the police sight. The result of the fingerprint comparison does not determine her sin, because her fingerprints are likely to stay on the paper towel box. For example, she once wanted to buy this box of paper towels, and the fingerprint happened to stay on it.
So Li Changyu focused his attention to the handkerchief left at the scene. After many tests, handkerchiefs have been scarred, but they found a little nose on the handkerchief. Nasal nose is often the details of many laboratory personnel neglect. Fortunately, Li Changyu found DNA in his nose and confirmed that the woman belonged to that woman.
The days after the network, the 30 -year -old suspension case was finally broken. The murderer was sentenced to life imprisonment, and the deceased and her father could finally look at it.
3, Simpson was suspected of killing his wife.
In 1994, a case of former American rugby player Simpson killed his wife. When hunting on Simarson, the three major TV networks in the United States ended the broadcast of all programs at the same time, and all the focus was concentrated in the entire process of being pursued by the police by the police.
On June 12, the police discovered that Simpson's whitening ex -wife Nicor ​​and a white boyfriend were assassinated in front of her house. The suspect that the police first determined was Nichol's ex -husband Simpson. Police found the same blood stains as Simpson's blood type at the scene, and then found blood stains in the search of Xin's residence, and found the traces of gloves, sneakers, etc. that coincided with the traces left by the scene of the accident.
The seemed to be like a mountain, but Li Changyu saw the flaws. At 10:30 pm, Simpson was calling. At 11 o'clock, his special car took him to the airport. The process of committing the whole case was only 30 minutes. In such a short time, use a small knife to kill the two, and rush from the first scene to the second scene. Jumping in the wall. The gloves fell down. Drop, and finally get on the car to the airport. This is even more amazing than the plot of the movie.
From the first day of the survey, Li Changyu believed that the murderer should be two people. Finding blood on the scene was also confirmed to be two types. However, the police initially determined that it was Simpson and had announced the results. In an irreversible situation, the police need to collect sufficient evidence.
The evidence through identification of DNA is related to Simpson, but Li Changyu also found that there are preservatives in the blood stains of DNA, and the blood flowing from the person cannot have preservatives. In addition, Simpson could not wear that blood glove.
It people say that this is a leather glove, because it is stained with blood outside, so it is reduced, but the blood on the gloves is very small. In addition, the wall was 3 meters high, even Jordan could not jump. If it is climbing, then the climbing vine on the wall will definitely cut the murderer, but there are no traces.
The so -called evidence of the police could not stand at all. The trial of the case at the time was 13 months old, and a wave of twists and turns. The jury eventually announced that Simpson was not guilty. responsible.
4, the three generations of grandchildren and grandchildren.
The family of three family members in Connecticut. The grandmother in her 70s was indisputable. Her son was deaf and could not see her eyes. The little granddaughter was only 7 years old. On Friday night with a storm, the three generations of grandchildren were killed. The old lady was stabbed for more than 30 knives, more than 20 knives in their sons, 17 knives among the granddaughter, and blood flowed into the river.
This is the most impressive case of Li Changyu, and the scene is terrible. He and his colleagues first analyzed the murderer's motivation. The family had no money, no enemies, and no drugs. So what caused them to suffer a disaster.
At first, the police believed that the old lady's daughter and son -in -law did the purpose of seizing heritage. But Li Changyu found a watch at the scene. After returning, Li Changyu found a hair on this watch, with black skin tissue on the posture. At the same time, Li Changyu and his colleagues found a large handprint at the scene, like the hand of black basketball players.
In investigations, Li Changyu's team found that the basketball assistant coach in a middle school in this area was black. He used to be the captain of the basketball team of this school. He took all the scholarship and played in the west. This small town.
In locking the suspect, Li Changyu and his colleagues found a shoe print, found the coincide shoes nearby, and found DNA in this shoe, and finally gave the black basketball teachings to the law. It turned out that he had to borrow the phone that day, and later found that the old lady was at home alone, and he had the evil thoughts of making money.

5, Little Kennedy rape case.
In the United States, it is not surprising about sex, but it has attracted much attention because of its prominent reputation, such as basketball superstar Kobe, former US President Clinton, and Kennedy.
In 1991, the dancer Patrics Bowman told Smith Kennedy's rape and caused a stir. Little Kennedy has always been named outside. Whether rape or hatchbacks have become the key to the case.
Ben according to Patrics, she and the little Kennedy had a good impression after meeting the bar that night. Then the two strolled and kissed on the beach. Suddenly the little Kennedy wanted to have sex with her, but was rejected by the woman. Patricia wanted to escape, but struggled for 5 minutes for the latter. Patricia fled to the backyard after breaking free, and Kennedy caught up with her and raped her for 20 or thirty minutes on the lawn.
In Li Changyu's eyes, this is a case without technical content.
First of all, according to the testimony, Patricsia struggled on the ground for 5 minutes. There must be bruises, skin scratches, or tearing clothes on the body. Essence
. Rape is a violation, usually ejaculating in one or two minutes, and it is impossible to take up to 20 or 30 minutes.
In addition, if rape on the lawn for so long, the clothes will be left on the clothes and mud. But these things were not found on her clothes. This proves that after the sexual relationship occurred on the beach, Little Kennedy might say that he would never meet again in the future. Patrics bite the little Kennedy.