In Yang Feng's view, unless Liu Yuanyuan knew this, it was already very late, or even too late for her to ask Liu Jing to change the sofa or floor at home, so she was "invited" into the police station by the police.
In other words, it was most likely that Liu Yuanyuan didn't know that He Shuangxi was killed with a cane in Liu Jing's home until the past few days.
It can be seen that the person who called Liu Zhaodi and asked her to help dispose of He Shuangxi's body was definitely not Liu Yuanyuan, but the old lady of the Liu family.
This shows that the assumption that the old lady killed or participated in the killing of He Shuangxi is most likely true.
Therefore, the blood stains on the wooden frame at the bottom of the sofa were most likely left by the old lady.
Lao Qin seemed to see what Yang Feng was thinking, and reached out to pat his shoulder: "Don't rush to conclusions, let's wait until the DNA comparison results come out."
Then, Lao Qin walked to the autopsy table and began to dictate the autopsy results of the two corpses of the Yuan brothers:
"There is a circular incision (wound) at the root of Yuan Shiwen's left thigh. The surrounding skin and muscles have been cut away, leaving only one bone connected to the limb. The wound has no response to life. The main manifestations are that there is no bleeding on the wound surface and no curling of the skin around the wound edge. , that is to say, this wound was formed after death.”
"Densely small cutting marks can be seen on the femur at the bottom of the wound, and they are all around the femur at the bottom of the wound."
"Looking at the shape of the wound, the edge of the wound is neat and fine, indicating that the tool used to cause the injury is sharp and not large. Judging from the cutting marks on the femur at the bottom of the wound, it shows that the tool used to cause the injury is not of high quality."
"In other words, after Yuan Shiwen died, the murderer took a sharp knife and repeatedly cut the base of the corpse's thigh, almost to the point of cutting off the thigh. He probably wanted to dismember the corpse."
"But the murderer has no medical knowledge, or no knowledge of anatomy. The reason why he (she) cut at the root of the thigh is to dismember the thigh. But the root of the thigh is not the place where the femoral head and the pelvis are connected. It is just The middle and upper part of the femur.”
"When the murderer dismembered the body and got to the femur, he couldn't cut it. The femur was very thick and very strong. It was obviously impossible for the knife the murderer used to dismember the body to cut off the femur. So, the murderer simply stopped cutting and cut the body directly. Put it in a sack and sink it into the reservoir.”
The forensic doctor explained to Yang Feng and others while pointing at the left thigh of Yuan Shiwen's body on the stage.
This identification result is in line with what Liu Zhaodi and Liu Jing said: They both said that the first way they thought of disposing of the body was to cut the body into pieces and then bury it. However, after only a few cuts, they found that the body was too difficult to cut. Simply gave up on this method.
Liu Yuanyuan is a doctor herself, so she is no stranger to human structure and anatomy. However, she claimed that she suddenly had her menstrual period and suffered from severe stomach pain. She really did not have the energy or thought to do the delicate work of dismembering Yuan Shiwen's body, so she gave up the idea of dismembering Yuan Shiwen's body after cutting a few times on the root of his thigh. And the simple and easy method of sinking both bodies into the reservoir came to mind.
However, Lao Qin's conclusion makes this part of Liu Yuanyuan's confession very untrustworthy: as a doctor, it is impossible for her not to know that it would be difficult to dismember the thigh with a knife from the root of the thigh, which is inconsistent with her status as a doctor.
In other words, the person who actually tried to dismember Yuan Shiwen's body was not Liu Yuanyuan, and she should not have been at the scene when the dismemberment occurred, otherwise she would have provided professional guidance.
It can be seen that the person who killed the two brothers of the Yuan family was probably not Liu Yuanyuan, and at least when the dismemberment occurred, she did not know that her brother or sister wanted to dismember the body and bury it. It is possible that she did not even know that the two brothers of the Yuan family were killed at this time. The brother is dead.
Combined with the fact that Liu Yuanyuan did not ask Liu Jing to change the sofa or floor at home in time, the three siblings truly realized "information sharing", and all the death processes and related information of Du Juan, He Shuangxi, and Yuan brothers were obtained. The time they came out to communicate, or the time they "colluded" in confessing, at least occurred after the dismemberment failed, which was just a few days before the police would "invite" them into the police station.
In such a hurried "collusion of confessions", before they could reach an agreement on the purpose of "who should bear all the charges", they were suddenly taken over by the police.
At that time, Yang Feng instructed the investigators to secretly collect relevant information about the three siblings of the Liu family, and openly investigated the disappearance of the two Yuan brothers with great fanfare. This investigation on the surface undoubtedly made them feel the pressure, so they got together to do a good job. worst plans:
If the police find out that we are the real culprits who killed the Yuan brothers, and even follow the clues to find out the deaths of He Shuangxi and Du Juan, instead of involving all four members of the family (including the old lady), it would be better to only arrest one.
Of course, the prerequisite for making this "plan" is that all four members of the family have died.
Because of this, what followed was a situation in which the three siblings rushed to grab everything as soon as they entered the police station, insisting that all criminal acts were committed by themselves.
In addition, according to the explanation given by the Liu family's third sister and brother, the police responsible for salvaging the bodies found a small wooden boat on the edge of the reservoir. This was used by relevant personnel to regularly clean up white garbage or other domestic garbage on the water, so it was usually docked at On the shore, unexpectedly, it was used to dump corpses.
The three siblings of the Liu family all claimed that after transporting the body to the edge of the reservoir, they then carried the body onto the small wooden boat, and finally rowed the boat into the reservoir and sank the body from the boat into the water.
Yang Feng nodded, indicating that he understood, and asked the forensic doctor to continue.
"The hair of the two corpses was of different lengths, and the hairstyle showed bumps. It should have been deliberately cut like this. At the same time, the corpses were naked, with large strips of scars on their chests and backs, and even on their heads. , he should have been beaten with a belt or whip during his lifetime."
"Both corpses have several puncture wounds on their heads. The difference is that Yuan Shiwen's head has three puncture wounds, while Yuan Shijie's head has four puncture wounds. These puncture wounds have the same shape, equal distances, and obvious The reaction of life is the injury during life.”
"This should be caused by agricultural tools such as rake heads, right?" Yang Feng interjected and asked.
The forensic doctor nodded and continued: "There were several scalp lacerations on the heads of the two corpses, caused by blunt force blows, but there was no skull fracture, only scalp injuries. They were also injuries before death."
"Was he shot with a brick?" Yang Feng asked again.
"The wound after being hit by a brick is consistent with this characteristic." The forensic doctor gave a very rigorous answer.
So far, the confessions of the three siblings are consistent with Lao Qin’s autopsy judgment.
"Belt, rake, brick, where is the fatal injury?" Yang Feng asked his biggest question.
Lao Qin, however, calmly pointed to the bodies of the two corpses:
"During the autopsy, it was found that there were multiple subcutaneous hemorrhages on the chests and backs of the two deceased persons. These injuries were consistent with the characteristics of being whipped with a belt. Belt whipping can indeed cause death, such as crush syndrome, but crush syndrome requires Subcutaneous bleeding occurred over large areas of the body. The amount of subcutaneous bleeding on the two deceased persons was far from enough to cause death."
This means that Liu Jing is not the real murderer of the two Yuan brothers.
Then, Lao Qin pointed to the heads of the two corpses:
"These bloody holes, these point-like wounds, don't even leave a mark on the skull. Such injuries cannot kill a person at all."
Yes, Liu Zhaodi is not the real murderer. It can’t be Liu Yuanyuan, right?
"Scalp lacerations caused by blunt instruments, as I said just now, did not cause skull fractures. At most, they could only be regarded as skin trauma, and they were not enough to cause death."
Not only Wang Xing and Wu Xiaojun were dumbfounded, but Yang Feng was also confused: "None of these three siblings is the murderer? The two Yuan brothers couldn't have committed suicide, right?"
Lao Qin shook his head, dragged one of the corpses by the waist, and lifted it up so that everyone could see his lower back:
"Both corpses have flaky plaques located on the uncompressed areas of the lower back. On the skin surface of the lower back, many small indentations can be seen, similar to small stones. Did you see them all?"
The three of them nodded in unison.
"At the same time, extensive subcutaneous bleeding areas were visible on the outer sides of both upper limbs of the two deceased persons. Many small superficial scratches were visible on both hands, and suspected rust-like foreign bodies were visible in the wounds."
Then, Lao Qin took out a bunch of photos and materials and handed them to Yang Feng.
"This is the identification result of the pigsty where the two deceased were imprisoned, that is, the crime scene."
"The pig pen is close to the mountain and is located behind the residential house. It is extremely secluded. It is a brick and wood structure with complete windows and roofs. The space is closed. There is only a heavy wooden door on the south side for entry and exit."
"Although it is called a pig pen, pigs or other animals are not raised in a pen."
"After entering the door, there is a pedestrian passage. On the right side of the passage is a 1-meter-high fence, which separates the passage from the pig pen. There is a layer of gravel on the ground in the passage and the pig pen, and there is a large area of blood in the center of the pig pen. Dismemberment The knife was right next to the blood stain, and it was an ordinary fruit knife. If he wanted to cut up the body with such a knife, he was obviously an amateur."
"After comparison, the blood stains on the ground and the blood stains on the fruit knife are consistent, so this blood stain should be left when the body was dismembered."
"There is a window on the north side of the pigsty. In order to maximize the lighting and air circulation of the pigsty, this window is opened higher and larger, about two meters from the ground. The window bars are rusty Rebar."
"There are traces of stepping on the wall below the window, which are footprints made by bare feet. Many dusty palm prints can be seen on the eaves of the window, and barefoot prints of stepping on the window eaves on both sides are also found."
Finally, Lao Qin pointed his finger at the head of the deceased: "Both deceased have a contusion area about the size of a walnut on their occipital area, and there are gravels attached to the wounds. These gravels are basically the same as the gravels on the ground."
"The two deceased persons had a contusion on their occiputs and a corresponding brain contusion on their foreheads. This type of injury is most common when they fall, lose their footing, or fall."
