According to Wang Yishan's description, the reason for the conflict between the two was because of a previous trivial quarrel.

The wife first hit her husband, and the husband took out a kitchen knife from the kitchen and slashed his wife in a hurry.

The room at the scene of the crime is 2 bedrooms and 1 living room, and it is facing the bathroom after entering the door.

On the left-hand side is the living room, with a set of leather sofas, a marble coffee table and a marble TV cabinet.

When Lu Chuan entered the door, he saw blood stains on the sofa, coffee table, and TV cabinet, and some ornaments fell to the ground crookedly.

On the right-hand side is the dining room, which is connected to the kitchen.

According to Wang Yishan, the two had an argument in the living room, and the husband went to the kitchen to get a kitchen knife and came back to cut people, so the first place to cut people should have happened in the living room.

The victim then tore with her husband and fled to the bedroom.

Eventually, the wife was hacked to death by her husband on the bed in the master bedroom.

There is a logical problem with this.

Why did the victim flee to the bedroom instead of the entrance door during the process of being hacked to death by her husband?

The deceased's home was a high-rise residence, and the floor where the crime occurred was on the 11th floor.

At such a high place, the victim fled to the bedroom, and it was impossible to escape from the slashing of her husband.

The most likely place to escape should be the entrance door.

In this way, whether it is to call for help or to escape, it is possible.

Of course, it is also possible that the victim wanted to escape into the bedroom and then lock the bedroom door to achieve the purpose of escaping.

However, this is in conflict with the bloodstains found on the entrance door.

Judging from the bloodstains, the position of the victim and the murderer at that time should be that the murderer was close to the entrance door, or even standing outside the door, swinging a knife from left to right and slashing the victim.

Otherwise, it is unlikely that the throwing blood will penetrate the cracks in the doors and the edges of the walls.

So, when the deceased's husband committed the murder, he took a kitchen knife from the kitchen, then walked out of the door, and then cut someone?

Liu Guodong saw that Lu Chuan's expression was a little puzzled: "What problem have you found?"

Lu Chuan nodded: "Master, it's this bloodstain."

Lu Chuan told Liu Guodong about his discovery and expressed his doubts.

"The process of the crime narrated by Captain Wang Yishan was obtained through the interrogation of the murderer."

"The other party came out of the kitchen knife and slashed at his wife in the living room, and the victim resisted and fled into the bedroom, and was finally killed on the bed in the master bedroom."

"But," Lu Chuan squatted down and pointed to the throwing blood stains on the gap between the entrance door and the wall, "How did the blood stains appear here?"

"It doesn't seem to be the same as the murderer's story."

Although Liu Guodong does not have too deep research on bloodstain analysis, his logical thinking ability to solve cases is only stronger than Lu Chuan, and he will not be worse than him.

Lu Chuan's statement means that the process of the crime that Wang Yishan just said is inconsistent with the process of analyzing the morphology of bloodstains at the actual scene.

Wang Yishan lied?

Impossible, the information Wang Yishan got was obtained by interrogating the murderer, and there was no need or possibility to lie to himself.

Therefore, this shows that the initial information obtained by Wang Yishan is problematic.

That is, the murderer did not tell the truth at the time of interrogation.

This is strange, since the murderer has already surrendered, why didn't he tell the truth?

Confessed to the killing, but lied about the details of the killing?

"I'll give Wang Yishan a call."

Half an hour later, Wang Yishan returned to the scene of the crime again.

"Lao Liu, are you sure?"

When Wang Yishan received a call from Liu Guodong just now, he rushed back to the criminal investigation team from the scene.

As a result, before he entered the door, he was called back by Liu Guodong with a phone call.

"There's something wrong with the blood on the entrance door, you can take a look at it."

Although Wang Yishan is a front-line criminal police officer and is not very familiar with technology, at least his judgment is still fine.

Lu Chuan explained in detail

Again, Wang Yishan naturally knew what was going on.

"Did the murderer identify the scene?"

Wang Yishan replied to Liu Guodong with a pale face: "It's not too late yet."

"After the murderer surrendered last night, the scene was investigated, and the murderer's side also started interrogation directly."

Liu Guodong nodded, this is also a routine operation, and the on-site identification will be carried out when everything settles.

But now that there's a problem, it's time to change the process.

"Judging from the bloodstains at the scene, the location between the murderer and the victim at that time, especially the location where the conflict occurred, is not the same as the murderer described."

"Of course, the murderer killed in passion at the time, and it is possible that he forgot some details, so let's identify the scene and let the murderer repeat the situation at the scene, and let's compare it."

"Okay, I'll arrange it."

Wang Yishan knew the seriousness of the matter.

If the murderer is nervous, so he omits some content during the interrogation, or even mistells some of the scenes at the time of the crime, this is a small matter.

But what if the other party did it on purpose?

That's a big problem.

Wang Yishan arranged for someone to come over with the murderer, and Lu Chuan was not idle.

Obviously, the current survey done by Lao Xu last night, Lu Chuan is not needed.

He had to carefully survey the scene, especially the morphological analysis of the bloodstains.

This facilitates the verification of the identification of the killer.

An hour later, the killer, handcuffed and shackled, returned to his former home.

"Wang Hui killed his daughter-in-law?"

"But no, just last night, I heard their clanging smashing things, and his daughter-in-law shouting for help, I thought they were fighting again, but I didn't expect it to really kill!"

"It's a good thing you didn't go, or if you don't kill the red-eyed Wang Hui, maybe you will be stabbed twice......

Wang Hui, the suspect in the murder of his wife, returned to his former home under the fingers of his neighbors.

The community where Wang Hui lives is a fund-raising house built by the unit 20 years ago, and most of the people living here are colleagues from the unit.

So the neighbors are more familiar with each other.

And Wang Hui and his daughter-in-law are also famous in the unit.

Wang Hui's daughter-in-law is notoriously powerful and has a strong personality, and often quarrels with Wang Hui, and even fights.

Wang Hui's personality is relatively soft, and when his daughter-in-law is mad, most of the patience passes.

But there are also many times when I can't bear it, so the two basically quarrel two or three times a week, and fight once or twice a month.

The neighbors in the building will persuade at first, but then they will not be surprised.

Wang Hui hadn't changed into a prison uniform at the moment, and his clothes were even stained with blood.

In fact, he had already changed his clothes, which were soaked in blood, and this dress was only a little bloodstained.

At the entrance door, in order to prevent the scene from being destroyed, Liu Guodong did not let Wang Hui enter the room, but stood at the door and told the story of his murder.

"I ran from the living room to the kitchen, grabbed a kitchen knife and slashed her."

"Be clear, where you ran from, where you slashed the first slash, and where the victim ran after being cut."