Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Chapter 212 Outrageous Case
The process of collecting blood was relatively simple, and Lu Chuan completed it quickly.

Although the incident did not take long, the activity of the bloodstain had long since disappeared, making it difficult to extract DNA information.

But at the scene of the crime, not only a similar dripping bloodstain was left behind.

Next to the sofa in the living room, the edge of the coffee table and the edge of the bedroom door, similar bloodstains were found.

"Do a blood type analysis first, and compare it with the deceased and Wang Hui."

Liu Guodong also attached great importance to these dripping bloodstains.

DNA information extraction not only takes a long time, but the success rate is not guaranteed, but blood type verification is much simpler.

With blood type test strips, you can get the result in 5 minutes without using it.

"Master, look at these two bloodstains."

From the entrance door, Lu Chuan tried to reconstruct the scene of the crime based on the shape of the bloodstains.

What Wang Hui said, that he took the kitchen knife from the kitchen and hacked the victim from the sofa, was inconsistent with the throwing blood stains found at the entrance door.

So, what is the real live action like?

Although Lu Chuan does not have the ability to go back in time, the shape of the bloodstain can tell Lu Chuan some answers.

Liu Guodong leaned over to observe the blood on the ground.

"Of the two bloodstains, one is a throwing bloodstain, but the blood volume is very small. You see... only about two milliliters of blood volume."

"This one is a splatter-like blood stain. The amount of bleeding is very large, at least [-] milliliters."

A throwing bloodstain and a splattering bloodstain.

Some of the two overlap each other, forming a more complicated bloodstain shape.

"Do you suspect that one belongs to the murderer and the other belongs to the victim?"

Lu Chuan nodded and pointed in the direction of the entrance door: "It is basically certain that the murderer slashed the victim first from the entrance door, and then the victim retreated to the sofa area in the living room while resisting."

"During this process, the murderer should have hacked the victim again."

"The splattered blood on the ground was bleeding profusely, which should have been sprayed from the victim's wound after he was hacked."

"However, this throwing bloodstain has a small amount of bleeding, and it partially overlaps with the victim's blood spattering. It is very likely that it was left by the murderer."

"After all, the murderer seems to have left dripping blood at the door, and the other party is very likely to be injured."

"Well," Liu Guodong nodded in agreement with Lu Chuan's analysis: "Collect the blood first, and do a blood type comparison to verify whether the dripping blood at the entrance door belongs to the victim or the murderer."

"In addition, the victim at the scene of the crime resisted fiercely, and there may even be... no, there must have been physical contact with the other party."

In the living room, the items on the coffee table were scattered on the ground, and many decorations fell off. It is conceivable that the resistance at that time was quite fierce.

"If Wang Hui was not the murderer, then the real murderer would not be able to clean up the traces of him left at the scene."

"Hair and dander may be left behind. Let's collect them and go back for identification and analysis."

After setting the direction of work, Lu Chuan and Liu Guodong began to conduct a detailed survey of the site again.

Old Xu, the surveyor of the Criminal Investigation Brigade of the Water District, did not do so meticulously last night.

After the incident happened last night, it was Wang Hui who took the initiative to call and surrender to the police instead of others calling the police.

When the police came, Wang Hui was sitting in the living room, covered in blood, with a murderous kitchen knife on the coffee table.

Therefore, in the case where the suspect has already been caught, the current investigation is not so important.

Old Xu just did routine work, collecting the murder weapon and some bloodstains.

The work of the forensic doctor was very simple. When Wang Hui surrendered, the victim had just died.

The cause of death is also very clear, the neck was almost chopped off, followed by some routine superficial inspections.

The autopsy report was soon handed over to Wang Yishan.

But it's different now, the current survey has to be done again, not only the scene, but also the body inspection.

Of course, an autopsy would not be necessary.

The cause of death, time of death and identity of the deceased were established.

The work of the forensic doctor was basically over, but Lu Chuan wanted to inspect the body surface of the corpse.

Especially with both hands, when the victim resists the murderer, if the victim grabs the other party, it is very likely to leave evidence in the nails.

If it is found, maybe the real culprit can be directly identified.

The criminal investigation detachment is currently investigating the laboratory.

Lu Chuan has completed the blood type analysis of the blood stains.

The result was as they had guessed. In addition to the victim's blood, there was indeed another person's blood at the crime scene.

Moreover, after the blood type test, it was confirmed that it was type A blood, but Wang Hui's blood type was type AB blood.

From this point, it can be determined that Wang Hui is not the murderer.

As for the examination of the corpse, Lu Chuan inspected the surface of the corpse. Unfortunately, nothing was found under the fingernails of the other party's hands.

But the surveillance video investigation has made important discoveries.

"Yesterday evening, Wang Hui's father appeared in Dongyuan Community."

Liu Guodong began to tidy up the instruments on the laboratory bench. The DNA information of the bloodstains was extracted, and after purification with the instruments in the trace evidence laboratory, he was doing analysis.

It is estimated that there will be results soon.

"But the person has not been found yet, and it is very likely that he ran away."

"Ran?"

Lu Chuan was a little surprised: "Wang Hui...does he take the blame for his father?"

Lu Chuan has heard of the father's crime against his son, but Lu Chuan has never heard of the son's crime against his father.

"It's possible, just wait for our results."

Lu Chuan nodded. Although Wang Hui's father has not been found yet, Wang Hui's DNA information has been extracted.

A paternity test between the two can lock the suspect.

Tonight, the two have to work overtime late.

There are many evidences such as hair and dander collected at the crime scene.

DNA information must be collected on all of these things.

But the crime scene is the home of Wang Hui and the victim, so there must be a lot of hair or dander belonging to them.

If Wang Hui's father really killed someone, then the material left by him would be relatively less.

In addition, Lu Chuan also collected some footprints.

Of course, since Wang Hui reported the crime at the scene, the scene was actually damaged a lot when he was arrested.

Especially the footprints on the ground are basically worthless to collect.

What Lu Chuan collected were the footprints of the two groups on the edge of the pool of blood in the bedroom.

Some of the footprints happened to be on the edge of the pool of blood, and it was precisely because of the pool of blood that this group of footprints was preserved.

the next morning.

Good news came from the Water District Criminal Investigation Brigade.

Wang Hui's father, Wang Dezhi, voluntarily surrendered.

"To take the place of the father?"

Lao Bai and Yang Sen were busy with the affairs of the detachment yesterday and did not go to the Criminal Investigation Brigade of the Water District.

Not much is known about the case.

When Lao Bai heard Liu Guodong's report of the case, his eyes widened: "The father killed the daughter-in-law, and the son took the blame? Isn't this too outrageous?"

(End of this chapter)