After making the psychological portrait of the murderer, Yang Xueqing's task was completed. Wei Da belly went downstairs to see her off.

And I am still, in Wei Da's office, looking through the file of this case.

In the dossier, there was one small detail that caught my attention.

Judging from the medical records provided by the hospital for the deceased Yu Lanqin, the day the deceased died happened to be the ninety-third day of her pregnancy.

Although we often say that we are pregnant in October, in fact, the average pregnancy cycle is only 280 days.

Two hundred and eighty days, exactly three times the ninety-three days plus one day.

I don't know if this was deliberate or just a coincidence.

Ignoring this small detail, in general, in this case, the murderer did a perfect job.

At the scene, the killer did not leave fingerprints and DNA.

Although a camera captured the murderer, it only captured a back image, without a front face or side face, which cannot be used to identify the murderer's appearance.

And in the end, the murderer disappeared into an urban village with no cameras and many forks in the road, and he disappeared.

Judging from the current situation that Wei Da Belly has mastered, they may really have to work stupidly, according to the psychological portrait made by Yang Xueqing for the murderer, screen the population of the city, and then find out one by one.

With a population of nearly 10 million, H City will undoubtedly be a big project.

After sending Yang Xueqing off, Wei Da Belly returned to the office and asked me what I thought of this case.

I hesitated, but still didn't tell him the little detail I had discovered.

I'm afraid of disrupting their detection.

If the direction of detection is wrong, no matter how hard you try, it will be in vain.

Although the efficiency of screening and mapping is low, the possibility of error is also small.

This case has made a lot of noise on the Internet, and the city bureau and the provincial department have attached great importance to this case. It can be said that the support they gave to Wei Da Belly was unlimited.

As soon as Wei Da Belly reported the investigation plan, the city bureau immediately agreed, and the provincial department was afraid that the city bureau would not have enough manpower, so he specially transferred manpower from other cities to assist the city bureau in solving the case.

In three days, Wei Daxue and they eliminated hundreds of suspects.

I believe that as long as they are given a few more days, they will be able to catch the murderer.

It's a pity that the killer didn't give them this time.

Three days later, the second, third, and fourth deceased appeared at the same time.

The three deceased were a six-year-old boy, a 33-year-old boy's mother who was planning to have a second child, and a 30-year-old boy's mother's sister who was a guest at the boy's house.

Investigation at the scene found that the boy and his mother's sister were directly stabbed to death by the murderer.

Only the boy's mother, like the previous deceased Yu Lanqin, sacrificed the fetus by caesarean section, causing heavy bleeding and eventually dying.

The boy's mother, who fell in a pool of blood, also had a satisfied smile on her face.

Seeing such a scene in the dossier and seeing such a scene at the scene are completely different feelings.

I couldn't help but shudder, I felt very oozing.

This time, there were not only me, Wei Dadou, Liang Zi, but also Yang Xueqing.

Yang Xueqing took out a large map of H City, and marked the location of the scene where the first deceased Yu Lanqin was killed, the location of the scene where the three deceased were killed this time, and the location of the urban village where the murderer disappeared after killing Yu Lanqin.

The three locations are no more than two kilometers apart from each other, and it takes less than half an hour to walk.

Based on this, Yang Xueqing believes that the murderer is likely to live nearby.

And, she also argues:

This time, the murderer killed three people, and there is clearly a trend of escalation.

This shows that the murderer's psychological condition has deteriorated. He became more irritable and violent.

In all likelihood, it won't be long before there will be a third homicide that is exactly the same, if not even bloodier.

But as soon as Yang Xueqing's words were finished, Liang Zi raised a different opinion.

Liang Zi said that their work of screening and mapping began at the scene of the murder of Yu Lanqin.

Now, in the vicinity, including the area around the crime scene this time, they have already screened and searched for it, but they have not found the murderer.

Yang Xueqing said that it was Liang Zi who was not meticulous enough to miss the murderer.

The two of them quarreled like that.

Wei Da Belly persuaded them a few words, and asked me what I thought about this case now.

I thought about it, but I shook my head and said I didn't have any idea.

I'm more concerned about how many days the boy's mother is pregnant.

I remember the day Lan Qin was killed, which happened to be the ninety-third day of her pregnancy, and I never forgot it.

When I got back to the police station, I saw the medical records of the boy's mother, which had already been prepared.

No more, no less, the boy's mother happened to be ninety-three days pregnant.

I put the two medical records in front of Wei Dayu, Liang Zi, Yang Xueqing, and the three of them.

Wei Daxue stopped talking.

Liang Zi frowned.

Yang Xueqing picked up two medical records and read them carefully.

"Brother Qiu, is this a coincidence?" Liang Zi asked me. I frowned and didn't speak.

Yang Xueqing quickly read the two medical records, put them back on the table neatly, and said:

"Perhaps, the murderer's child died on the ninety-third day of his wife's pregnancy."

I still didn't speak.

I think we may have been wrong in our previous judgment.

There is a kind of pill in the Xuanmen, called the fetal pill.

Most of the medicinal materials needed to refine the fetal pill are very normal, nothing more than tonic products such as ginseng and Ganoderma lucidum.

Only its medicine primer is very strange and evil, and it is three ninety-three-day fetuses.

After the fetal pill is refined, the person who takes the pill needs to take it the day before he dies.

The three fetuses are ninety-three days each, plus the one day that the person who takes the pill himself has left, which is exactly two hundred and eighty days.

Those who take the pill are therefore equivalent to reincarnating again, being reborn again, and being able to continue their lives.

Of course, this fetal pill is undoubtedly one of the forbidden drugs in Xuanmen.

Whoever dares to refine will be killed!

But in order to survive, someone will do it.

Those who do this are generally dying people.

He kills people for alchemy, and alchemy is for survival.

This is inconsistent with what Yang Xueqing said when she made a psychological portrait of the murderer, the murderer suffered from mental illness because of the loss of his child, and killed people because of mental illness.

This shows that her psychological portrait is most likely wrong.

Wei Da's belly and the screening and sorting they carried out with this are very likely to be in vain.

I glanced at Yang Xueqing, but I didn't immediately say what I thought in my heart.

I'm afraid of getting into unnecessary trouble.

When Yang Xueqing left, I told Wei Da Belly my thoughts.

Wei Da Belly still believes in my judgment.

He immediately asked people to re-screen and find those who were dying and had access to the medical records of pregnant women in the hospital.

**********

Uncle Reader, I'm sorry, it's late for today's update.

I've been using a garbage keyboard of forty or fifty yuan, and I haven't coded words for such a long time for a long time, and my hands are a little overwhelmed.

When I coded words today, my fingers were like pins.

Let me take a breath of relief, the mechanical keyboard I bought tomorrow should arrive.

I owe you one chapter again, that is, I owe you six chapters again.