As Li Ang guessed, the final murderer of this case was the father-in-law and mother-in-law who lived with the deceased.

While his son was working outside, the father-in-law kept coercing the deceased many times.

The deceased asked his mother-in-law for help, but in order to "not make public the family scandals", the latter maintained a tacit attitude and even colluded with her husband to imprison her daughter-in-law.

During an insult, the deceased claimed to inform her husband who was about to return from work. His father-in-law and mother-in-law panicked and strangled him to death, and tried to escape responsibility by disguising himself as hanging him.

During this process, the two did not dare to look directly at the body of death without mercy, and they also deliberately used cloth to cover their faces.

Watching the two elderly murderers with mosaics on the TV show, who were crying in the prison and constantly repenting, Li Ang couldn't help but sneer, "It's so funny these people."

"Um?"

Wang Fengnian cast doubtful eyes.

Li Ang spread his hands, "I don't think they are sincerely repenting when they cry.

During the crime process, they have countless opportunities to stop harming the victims.

Did they stop? Not,

The criminals who took the initiative to infringe on innocent people, the tears that fell after putting on prison clothes, were just regretting being caught doing evil and fearing the impending punishment.

Scum, you will always be scum."

Wang Fengnian nodded without comment and asked, "Xiao Li, you have good reasoning skills. I heard Shanshan say that you have read a lot of detective reasoning novels before?"

Of course, Li Ang couldn't tell the other party that he had read a lot of mystery novels using Xinhua Bookstore when he was in junior high school.

Start using the Internet to learn a series of books such as "Criminal Science and Technology", "Criminal Investigation", "Traces Inspection", and "Investigation Law" (there are electronic versions online and physical versions are also sold)

I immediately nodded with a smile, "Yes, my dream when I was a child was to become a criminal nemesis, maintain social security, and protect the lives and property of the people."

"Um."

Wang Fengnian nodded, suddenly remembered something, and returned to the study and took some documents.

These documents are cases received by Yin City officials recently. In recent months, all kinds of strange things have happened one after another, making grassroots operators anxious.

Front-line operators like Wang Fengnian have not been home for a long time and have had a normal meal with their family.

He took out more than twenty photos from his file bag, "What do you think of these photos?"

Li Ang took the photo and found that the scene of the crime taken in the photo was located in an ordinary residential building.

In the two bedrooms and one living room, the male and female hostess was lying on the ground of the living room, with several deep knife wounds on her waist and abdomen, and a large pool of blood was accumulated around the body.

All cabinet doors in the room were opened, and some debris were piled on the sofa, and there were no blood-stained footprints or other blood stains on the ground.

The weapon is located in a narrow bathroom with a lamp on. It is a steel Western restaurant knife with a short shank and a smooth curved blade, which is soaking in the sink.

There is a string of dripping blood under the light switch box on the right side of the sink to the wall.

Li Ang looked at the photo and asked without raising his head, "Robbery?"

"right."

Wang Fengnian nodded, "A fire staircase stands outside the window. The murderer sneaked into the house at night and murdered the owner of the house during the robbery. The entry and exit location happened to be in the surveillance blind spot, and he was not photographed."

“Um…”

Li Ang flicked the photo with his finger and said, "How long has this case been?"

"Two days ago."

Li Ang put the photo on the table and said, "I can't be sure, but it is recommended to go to the hospital and clinic near the local area where the crime was reported to find the recent admission records.

Check if there is a deep scar on the right palm.”

"oh?"

Wang Fengnian frowned, "Why?"

Li Ang spread the photos on the glass coffee table with fruits and tea leaves, and pointed to a few photos.

He said: "The toilet in this house is quite narrow and dark, especially the switch box of the light, located beside the wall on the right side of the sink.

The only blood stain here is just under the light box, and the blood dripping trajectory is vertical.

This shape of blood was obviously dripping on the ground when the suspect pressed the switch.

The lighting consecration box is located on the right side of the sink, which determines that it is difficult for normal people to put their left hand in and press the switch. They can only use their right hand, which means that the blood comes from the palm of the suspect's right hand."

He glanced at Wang Fengnian and smiled and said, "So does this blood come from the suspect himself? Or does it come from the victim?

I prefer the suspect's own blood.

If the murderer was stained with blood from the victim, the traces of blood dripping should be from top to bottom, from thick to light;

The concentration of these blood stains at the scene was consistent, and it could only be caused by the injury to the murderer himself.

Based on the shape of the knife, I guess it was the murderer who committed the crime because the hilt of the Western knife was shorter and the blade body was longer.

When he held the hilt tightly and stabbed forward, the blade pressed his palm against his palm due to excessive force, cutting the suspect's right hand palm.

As for the crime scene, there was no blood, and all the debris was piled on the sofa...

I guess the murderer went to the bathroom to deal with his palms urgently, returned to the living room and wiped the blood on the ground, and then escaped from the crime scene.

Finally, according to the amount of blood under the light switch box,

I guess his hand injury is quite serious and he must go to a professional institution, that is, a hospital or clinic for suture.

Just check if there are any injuries with cut marks on the right palm recently, it is easy to check and screen out."

After saying that, Li Ang looked at Wang Fengnian with a calm face and smiled: "Uncle Wang, you must have passed the test now and found that the blood belongs to the third party indoors, that is, the suspect himself.

As long as there is a DNA sample, it is only a matter of time before the suspect is arrested."

Li Ang still hid a word, that is, he speculated that a large-scale bizarre incident occurred in Yin City recently—

This case of robbery and murder is actually quite simple.

Even if you don’t go to the hospital and clinic for investigation according to Li Ang’s speculation, or search based on DNA samples, the official can rely on a large amount of manpower to find the murderer by checking surveillance data on a large scale.

Generally speaking, murder cases must be solved. Two days have passed since this case, which is enough to prove that the official manpower of Yin City is likely to be in short supply.

This situation is caused by extraordinary factors randomly generated by the killing game.

Or is there another reason?
Chapter completed!