"This head concussion injury resulted in severe head injuries that were enough to cause death. This is the fatal wound of the two deceased."

"Therefore, based on the above analysis, combined with the characteristics of the deceased's craniocerebral concussion, the two deceased should have tried to escape through the window, but accidentally fell from the window, causing occipital injuries and death."

"The fingerprints on the window eaves can confirm that the fingerprints were left by the two deceased, and the footprints on the wall and the eaves on both sides of the windows exactly match the dimensions of the soles of the feet of the two deceased. This shows that the deceased went up to the windowsill before he died."

"Both deceased had small scratches and rust on their hands, and the window rails on the north wall were made of rusty rebar, and fresh wipes were found on the rebar, as well as some blood stains. DNA comparison confirmed that the bloodstains were also left by the two deceased."

"The contusion and laceration of the deceased's occipital wound had small rubble in the wound, which is basically the same as the gravel on the ground, which I have emphasized before. This means that after the deceased accidentally fell from the windowsill, the occipital part should have hit the ground first, resulting in death."

"And what does it mean that there are many indentations on the deceased's back that resemble small stones?"

"Dead body spots often reflect traces of the shape of objects that come into contact with them. For example, a person who dies on a mat in the summer will have a lattice-like indentation on his back. But there has to be a premise, that is, the deceased has to lie on the mat for a long time after death."

"The gravel-like indentations behind the two deceased indicate that they were lying on the ground for a long time after they died, and that the bodies were correspondingly untouched during this time."

"In addition, the two deceased had long dog chains around their necks and shackles on their hands and feet, but they were not completely restricted in their movements."

"Based on this, it is not difficult to imagine that the two deceased were humiliated and ill-treated during their lifetimes, and they wanted to run away after the perpetrators left."

"But the door is locked, and the other end of the leash is locked to the base of the wall under the window, and the leash is not long enough for them to move to the door, but it can barely make them find a way to climb up the ledge."

"Perhaps thinking that one person was not strong enough, the two deceased climbed up to the window and shook the rebar with both hands, trying to break through the window and escape. After all, the rebar looks rusty, and it's not very big, and it might be possible for two grown men to shake it out."

"At the same time, if you shake out a steel bar, you can use it to break the leash. There is nothing in the pigsty except for a pile of straw in the corner, let alone anything hard to use to break the leash."

"Maybe it's too much force, or maybe it's careless, after all, their hands and feet are already shackled, and their movement is extremely difficult. Anyway, some of them fell out of the window. The moment a person falls from a height, in order to protect himself, he will subconsciously reach out and scratch it, and it is likely that he will grab another person and tear him off the windowsill."

"Unfortunately, both of them landed on their pillows and died on the spot, without even turning over, and it took at least 12 hours or more for the bodies to be turned over, resulting in a gravel-like indentation on the back of the corpse."

Lao Qin's analysis is based on physical evidence, and everyone thinks that the truth about the death of the Yuan brothers should be basically restored, but the question is: since these two brothers accidentally fell to their deaths, why did the three sisters and brothers of the Liu family rush to admit that they killed them?

After a moment of silence, Yang Feng put forward his own opinion on this:

"The two brothers of the Yuan family died from a fall and fell down, this is the result of Lao Qin's identification based on the autopsy situation and various traces at the crime scene, but for the three sisters and brothers of the Liu family, will they know this result?"

"They certainly don't know. If they knew that the Yuan brothers had fallen to their deaths, they would definitely not rush to take the blame on themselves."

"Liu Yuanyuan is a doctor, and if she had seen the bodies of the Yuan brothers in time, she might have suspected the cause of their death. But at the time of the dismemberment, it is highly likely that she had not seen the bodies of the two brothers."

Then, Yang Feng changed his words:

"There is no doubt that the three siblings of the Liu family were not present when the two deceased tried to escape through the window, including when they fell to the ground."

"In the confessions of the three sisters and brothers, they all said that they had abused the Yuan brothers, either with a belt, or with a rake or a brick, which is also true."

"At the same time, they all said that they killed the two brothers with different tools, Liu Yuanyuan said that she used a brick to kill them, Liu Zhaodi said that she used a rake, and Liu Jing said that she used a belt to smoke them to death."

"Why is this happening?"

"I think it's probably because they both used their own killing tools to abuse the two deceased, and then they went back to the house to rest, and the next day, maybe Liu Zhaodi, maybe Liu Jing, or maybe they both pushed open the door of the pigsty and looked at it, only to find that the two Yuan brothers were dead, what would they think at this time?"

"Do you think that your previous abuse caused their deaths?"

"In their eyes, the shackles of the two deceased hands and feet were not opened, the dog chains around their necks were also there, and the windows were 2 meters above the ground, so the marks on the window railings and windowsills did not come into their sight in the first place. All of this means that nothing unusual has happened to the pigsty, let alone any outsiders have entered it."

"Therefore, in their opinion, it will only be their three siblings who caused the death of the two brothers of the Yuan family."

"When Liu Yuanyuan saw the body, we don't know, and we don't care for the time being."

"The important thing is that these three sisters and brothers have this consensus, and they all think that they killed the Yuan brothers, or that their joint abuse led to the death of the Yuan brothers, and they all think that they have all carried their lives because of this, so in the subsequent confessions, 'it is natural to break only one instead of breaking the whole family.'"

Wu Xiaojun and Wang Xing did not object to this, and Lao Qin only listened to it.

Before the start of the new round of interrogation, Yang Feng received the latest investigation of Liu Yuanyuan:

After checking with Shang Biao, Liu Yuanyuan did have a day or two of separation from him from July 1 to 5, 2004, saying that it was because she had to take care of her sick female tutor.

On the other hand, the local police visited the door, only to find that Liu Yuanyuan's mentor had passed away.

It seems that this part of Liu Yuanyuan's confession can't be verified by her mentor, but judging from Shang Biao's feedback, this part of her confession should be true, which means that she did leave Shang Biao briefly for a day or two under this excuse, and then went back to Shashi and killed Zhou Xiaolu.

However, many photos sent by the local police at the same time, one of which completely denied this part of Liu Yuanyuan's confession.

Although Liu Yuanyuan's mentor has passed away, her house is still there, and her daughter, Ms. Tang, lives in it.

Ms. Tang recalled that her mother had mentioned that in July 2004, her mother did have a serious illness, but she, the daughter, was not around, and her father had passed away a long time ago, so several female students of her mother discussed taking turns to take care of her in groups of two people for a day or two, but Ms. Tang did not know who these students were and what their names were.

It is precisely because of the care and care of these students that the mother was very moved, so the mother secretly photographed these female students busy in the house, wanting to keep these beautiful pictures and memories.

Naturally, Ms. Tang provided these photos to the local police, who scanned and forwarded them to the Shashi police.

The photographs were taken with an old-fashioned digital camera, and the time display was set when the photo was taken.

One of the photos suddenly turned out to be Liu Yuanyuan. Although the photo only captures Liu Yuanyuan's side, it is enough to make people recognize her appearance.

The time shown in this photo is July 2, 2004, the day Zhou Xiaolu was killed.

In addition to Liu Yuanyuan, there is another girl in the photo. On the back of the photo are the words "Liu Yuanyuan Zhu Xiaojuan". Zhu Xiaojuan should be the name of another girl.

Yang Feng looked at the photo in his hand, and immediately asked people to find a way to get in touch with Zhu Xiaojuan, and asked her if Liu Yuanyuan had left halfway when she was taking care of the female tutor with Liu Yuanyuan in a group.

Zhu Xiaojuan recalled on the phone that Liu Yuanyuan did not leave on July 2, and said that their group went to the female tutor's house at 8 o'clock on the night of July 1, and did not leave until 8 o'clock in the morning on July 3, and another group of classmates came to "take over".

In other words, on July 2, Liu Yuanyuan did not have the time to kill Zhou Xiaolu at all.

I have to say that Liu Yuanyuan is an out-and-out master of lying and making false confessions. At this point, she used a half-truth and half-truth, and almost succeeded in fooling the test.

Since Liu Yuanyuan admitted that she killed Zhou Xiaolu, the police naturally had to verify her confession, and the two people involved in this part of her confession, namely Shang Biao and the female tutor, must have become the targets of police questioning and verification.

The female tutor has passed away, which Liu Yuanyuan probably knew for a long time.

Therefore, she also knew that the police's verification and questioning could only find Shang Biao, and she was destined to not be able to find the female tutor.

In Shang Biao's verification and questioning, it can only be proved that Liu Yuanyuan was indeed separated from him from July 1 to July 5, 2004, and the "excuses" used are also consistent with Liu Yuanyuan's own statement, and these circumstances will only convince the police that her Liu Yuanyuan's confession is true.

But Liu Yuanyuan didn't calculate everything, and the female tutor secretly took photos of every student who took care of her at that time.

Although Liu Yuanyuan is not the real murderer of Zhou Xiaolu, the identity of the real murderer is not difficult to guess.

Since this woman wants to put Zhou Xiaolu's death on her head, there is no doubt that she wants to top the bag, who will make Liu Yuanyuan willing to top the bag?