Ring ring ring!
A rapid phone call pulled Zhou Ning out of his anatomical training. He shook his head, feeling dizzy from the hangover. He struggled for a while before grabbing the phone. When he saw the words "Xu Da", his half-started yawn was scared away.
"Xu Da!"
"Not up yet?"
"Just tell me what your boss wants you to do. This is scary."
"Haha, you've had quite a bit to drink. It's already past ten o'clock. Come to the team quickly. Don't you remember the mission you assigned me last night?"
Zhou Ning was stunned and recalled carefully. He suddenly remembered that after separating from He Shancun, he seemed to have called Xu Dayuan. As for the content of the call, he had forgotten it completely at the moment. After all, that part was a little fragmented. He asked tentatively.
"Xu Da, I'll go now, but what did I tell you?"
"Zhou Xiaozhou, you are teasing me, right?"
Zhou Ning was terrified.
"No way. Wait, I remember now. Last night I told you that we had changed the direction of our investigation. We were going to look for private andrology hospitals or infertility agencies in the provincial capital that have good advertising effects. I just woke up, so my brain is a little slow to react."
"Okay, stop talking nonsense and come here quickly."
After he hung up the phone, Zhou Ning jumped up, washed up, put on his clothes and rushed out. Ten minutes later he arrived at the criminal police team.
He didn't take a taxi. Treating He Shancun to dinner last night was already an unexpected expense this month.
Besides, if Xu Dayuan really wanted to scold him, he would not use this tone. It seemed that the provincial capital seemed to have discovered something. However, in order to quickly metabolize the remaining alcohol in his body, he was not in a hurry and just trotted to the second floor.
As soon as I went up to the second floor, I heard Xu Dayuan's loud voice. It seemed that he was calling someone, and his tone was quite domineering.
Following the direction of the voice, I saw Xu Dayuan actually in Dr. Lu's office, talking to Liu Yongxin and others.
Although it was Saturday, almost everyone in the software research group was there. After all, Dr. Lu had found a lot of skulls for them, as well as remains from World War II and bones from uninhabited graves discovered during excavation of surrounding roads. In short, there was a lot of material that could be used for experiments.
As soon as Zhou Ning poked his head out, Xu Dayuan seemed to have eyes on the back of his head and shouted:
"Don't pry your head around, Zhou Xiaozhou, come in quickly."
"What's wrong, leader?"
Xu Dayuan waved his hand, and Zhou Ning quickly walked to Liu Yongxin's side. On the computer screen, there were surveillance images. A quick glance showed that there were more than 40 images on this page alone.
"This is the surveillance footage from several private andrology and infertility clinics in the provincial capital. Dr. Lu just had someone check it out. They usually keep surveillance videos for a month, but the files are kept for a long time. In addition, they take photos of patients in the clinic and keep them on file."
Following Liu Yongxin's introduction, Xiaoqu has adjusted the screen. At this moment, it is a picture after another. The picture above is a photo from the doctor's perspective. The photo is very clear and includes the patient's file and the patient himself.
"I feel that the murderer of the 3.10 case knew that his sex chromosomes were abnormal very early, so the surveillance search is not very meaningful. It is better to screen all the people with XXY abnormalities from 2005 to 2010 in these files. These people are the scope of our investigation."
Xu Dayuan looked at Zhou Ning and nodded continuously.
"It doesn't have to be 2005. Let's see when they started keeping records. Let's not miss any of them. After all, there aren't that many patients like this, so it's easier to screen them."
Xiaoqu smiled and nodded.
"Let me try it. It's very fast. The electronic medical records they keep all have the names of the diseases."
As he spoke, his hands started clacking away. After a moment, many files appeared on the huge display screen, and a number 447 appeared behind the search box below. This was a huge number.
Xiao Qu turned around and handed the mouse pad to Zhou Ning.
"Four hundred and forty-seven patients with XXY sex chromosome abnormalities are concentrated in these two Putian-affiliated andrology hospitals. I will compare the information with that of public hospitals later. Patients who use medical insurance can use their real names, but those who pay out of pocket can hardly choose their real names."
Xu Dayuan nodded, and Zhou Ning clicked on a photo and began to check. There were more than 400 people. If each of them was to be investigated carefully, the amount of manpower and material resources required would be unimaginable.
"Zhou Xiaozhou, have you and Forensic Doctor Liu made any characterizations of the murderer? What aspects should we consider when screening?"
Zhou Ning looked at Liu Yongxin, and Liu Yongxin nodded at him.
The meaning was very clear, so let him talk freely. After all, the two of them had already studied some detailed characteristics of the murderer in this case, from the intensity and direction of the abuse injuries, to the length of the scratches in the victim's vagina.
"Based on the scene and autopsy analysis of the March 10 case, I believe that the murderer is not tall and is thinner than an average man. Only in this way can his danger level be reduced. Otherwise, even if a burly man pretends to be injured on the roadside, Cheng Chunyan will not come to help.
As for age, combined with the time of the Red Dress serial murders, from 2006 to now, this person is at least 22 years old. I asked Director He, most patients with XXY chromosome abnormalities have unclear secondary sexual characteristics or extremely slow development. The youngest first-time offender is only 17 years old, that is, people born before 1989.
In addition, judging from the scratches on the victim's body, the murderer's longest finger is 7.5 cm long. According to normal proportions, the murderer's hand length is 16-17.5 cm, which is smaller than the average girl's hand. Therefore, we estimate that the murderer's height does not exceed 170 cm.
Of course, there is another point, that is, people with Qindao household registration or people living in surrounding coastal cities, after all, they are quite familiar with tides, because the tides in the sea area around our Qindao are very different from those in other places. "
Liu Yongxin kept nodding, obviously agreeing with Zhou Ning's judgment. Xu Dayuan took out a small notebook and quickly wrote down what Zhou Ning said. There were very few clues to find the murderer on a corpse, and it was already very difficult for the forensic doctor to figure it out to this extent.
"Okay, Xiaoqu, first conduct a rough screening based on the age range we gave you and compare it with the patients with the same disease from the various major universities in the provincial capital that we retrieved last night. We will make a detailed assessment and investigation of the selected patients."
Xiaoqu didn't waste any time and started the screening immediately. After all, a large proportion of these patients were minors, so the screening speed was not slow. He then compared them with similar patients in major hospitals in the provincial capital. After more than ten minutes, the number of files remaining on the screen was only 154.
Seeing Xiaoqu stop, Zhou Ning walked over, took the mouse, and opened each file for inspection. After all, most of them had photos and electronic medical records. Although he couldn't see the height, he could still make a comparison while sitting.
Zhou Ning looked through the files one by one, eliminating those that were too feminine, with long pointed fingernails, and those whose medical records clearly showed incomplete organ development. When he opened a file labeled with the patient's name Yang Guang, Zhou Ning paused.
Zhou Ning's actions caught Liu Yongxin's attention.
Looking at Zhou Ning and then at the display screen, the file date was August 12, 2004. The man was wearing a hat and glasses, with his hands curled up in his sleeves. His date of birth was February 24, 1979. Liu Yongxin didn't find anything special.
"What's wrong?"
Zhou Ning enlarged the picture, and the entire screen was filled with the person's facial features. After careful identification, he looked at Liu Yongxin.
"This man is my sister Zhou Xiaoyu's boyfriend Cui Guanglin. We just met last night. Although he was wearing a hat and disguised himself, I remember the mole on his nose."
Liu Yongxin was also stunned. He didn't expect to meet an acquaintance in such a situation.
"Since the screening showed that he also has chromosomal abnormalities, don't your second uncle and the others know about this?"
Zhou Ning shook his head and briefly recounted what happened last night. Xu Dayuan also came over.
"No wonder this kid behaves like this. It seems he already knew he had health problems. Why would he ? I'll call Lao Zhou and make it clear that we can't keep this kid."
Zhou Ning shook his head.
"Let me talk about this. It's not appropriate for my second uncle to talk about this. Even if we break up, we can't let the other party know that we found out about this. After all, they still work in the same high school."
Liu Yongxin nodded and patted Zhou Ning on the shoulder.
"You're right, but since this kid has been screened out, let's see when he went to see a doctor. Let's identify him carefully."
Xu Dayuan understood what Liu Yongxin meant and nodded as well. However, Zhou Ning lowered his head and pondered for a moment. He recalled the details of meeting Cui Guanglin last night. He didn't have a strong sense of the size of the handshake, but there were Band-Aids on his fingers, which made him even more worried.
Liu Yongxin bumped his shoulder, he looked up and smiled at Liu Yongxin, then quickly continued with the work at hand.
After half an hour, the screening work was completed, and there were only 32 people left.
"I will make arrangements now to check the real information of these people, and then start to check them one by one, one is the time of the incident, and the other is whether they have any injuries on their bodies."
"Well, I approve of Xu Da's arrangement."
Zhou Ning raised his hand and stopped Xu Dayuan's arm.
"Don't worry, Mr. Xu, I want to confirm the time of all the incidents in this red-clothed serial murder case in the Municipal Bureau."
Xiaoqu directly clicked on a file, and all the time appeared on the screen like a list, all of which were bodies found in February, March, August and September.
However, if we estimate the time of death of the deceased, the crimes were basically committed in February and August. If the city police came last time and took a look at the case and concluded that it was not a serial murder case, I am afraid that time was also a consideration.
"Master Xu, check Cui Guanglin first. It's not because of Zhou Xiaoyu, but when we were having dinner last night, I remember Cui Guanglin had a Band-Aid on his finger. Besides, except for the March 10 case, all the cases happened in February and August, which is the winter and summer vacation period."
Xu Dayuan and Liu Yongxin were both stunned, and their expressions became more solemn.
"Then check him first!"