After returning to the police station, Peng Xin came to me and said: "Brother Xiaohuan, I just tested the murderer's blood and found that the murderer is an impotent person."

"How do you say that?" I asked immediately.

"Normally speaking, when the vaginal survival time is more than 6 hours, the sperm survival rate is about 20%, but in the murderer's vagina, the number of surviving sperm is almost 0. Generally speaking,

The sperm survival rate is less than 40%, and there are basically no viable sperm after 6 hours, so it can be basically concluded that the murderer is sexually impotent."

Peng Xin answered me in the affirmative, but I rejected it. I said: "Not necessarily. There is another possibility that the murderer is an elderly person, over 70 years old, and the survival rate of sperm is also very low."

"Yes, I didn't expect it." Peng Xin realized that she had made a subjective mistake, so she took the initiative to admit it.

"It's okay, it doesn't matter, let's take a look at the body." In fact, Peng Xin is really equivalent to my own sister to me. Now that she has chosen He Xiaofei, I am really happy for them both.

After arriving at the operating table in the forensic room, Shen Ling and I immediately checked separately and looked at the ring fingers of the other three deceased people one after another. Sure enough, they all had calluses on their hands.

"Are they all calligraphy lovers?" Shen Ling asked.

I didn’t know if it was right to consider it from the perspective of a calligraphy enthusiast, so I added: “Don’t worry, let’s see if they are pregnant.”

"They are all pregnant, the longest one is 2 months." After that, Peng Xin pointed to the corpse on the far right and said, "That's the deceased. When I used the endoscope to detect it, I found that

The fetus in her belly has already formed a human form, the murderer is really cruel."

I walked over, covered the face of the deceased with a white cloth, and asked, "Have the identities of the four deceased been confirmed?"

"Everything has been confirmed. The information is with Technical Liu, but I haven't gotten it yet." Shen Ling said embarrassedly, but I didn't mean to blame her. After all, she had been running around the scene today without stopping.

"It's okay. They should be back too. Let's go to the conference room and wait for them." I said comfortingly.

"OK."

After arriving at the conference room, Shen Ling saw that no one had time to have dinner, and there were no dishes left in the cafeteria tonight, so she paid for herself and bought a dozen takeaways as a reward for everyone.

"Come on, come on, let's eat first and then have a meeting after the meal." I said as I accompanied Shen Ling to take the delivered takeout to the conference room. At this time, Technical Liu and the others had already rushed back. When they saw that there was takeout, one

Everyone is also very happy.

After eating, as usual, everyone began to summarize the information they had.

Technical Liu was the first to say: "The first deceased, Xin Xiaoxia, was a young white-collar woman, unmarried, with a boyfriend. She was currently working as a short seller in an airline company and rarely went home. As I learned at the airport,

According to the situation, the two people had a quarrel recently, and the specific reason is unknown.”

"However, a stewardess at the airport said that the stewardess was very troublesome, so the reason for the quarrel between the two was probably because of this. In addition, the airline has suspended the stewardess from his job and now lives in a single dormitory at the airport.

You can be summoned at any time." Technical Liu said while drinking sour plum soup.

"The second deceased Lanqi was a divorced female taxi driver. She was not a local and had no children with her ex-husband, but she was also pregnant. According to what we visited, this female taxi driver worked part-time as a Lou Feng, so she was not a local. Rule out the possibility that the murderer committed murder of passion or manslaughter," Shen Ling said.

After a pause, Shen Ling introduced the third deceased, "The third deceased, Zhang Na, was a female manager of a listed company. She was also pregnant out of wedlock. She was already 2 months pregnant. The method of death was the same as that of the other three. The cause of death was the same, all of them were struck to the back of the head with a sharp weapon and died."

"The fourth deceased, Hu Yueyue, the female owner of a flower shop, was also pregnant out of wedlock." I added.

He Xiaofei heard the situation we summarized and said in confusion: "They all got pregnant out of wedlock. Could it be that the murderer wanted to be a flower-picking thief?"

"Not necessarily, the murderer may still be an extremely psychologically twisted person. Brother Xiaohuan and I just analyzed that the murderer's sperm quality is particularly poor, so he is either an old man or an incompetent person. So I think the murderer is more likely to take revenge on society. Bigger." Peng Xin said.

I looked at the several rough connections written by Shen Ling on the whiteboard next to me, and took the initiative to ask: "At the death scene of the first three victims, was there a book called "Appreciation of Su Huang Mi Cai" about calligraphy? That kind?"

Technical Liu immediately said: "The first deceased and the third deceased were both present at the scene. The first deceased's books were placed in the bag that she carried with her, and the third deceased's books were placed on her desk at home. "Only the second deceased person did not have this book, so I did not dare to regard this feature as a commonality."

Hearing Technician Liu's words, I immediately said: "No, the second deceased person should also be related to this book. I just went to the forensic room and saw that there were calluses on the nameless body of the deceased. This is a common feature among calligraphy lovers."

After finishing speaking, I fell into deep thought again. The causes of death and unmarried pregnancies of these four deceased people were perfectly consistent. Only the second deceased did not have this book. So where is this book? ?

Shen Ling saw that I didn't think about it for a while, so she said: "Let's do this, Technical Liu, I will give you a task to find out where the other three deceased people got this book, whether it is a physical bookstore or online. See if there’s any correlation?”

"I understand, Team Shen." Technical Liu nodded and said.

"Well." Shen Ling continued, "Xiao Huan, He Xiaofei, let's continue to work overtime tonight. You two are working on the Food and Drug Environmental Investigation Department. I will just go and communicate with the Deng Brigade. I will accompany you. Go and see the murder scene."

"Also, Lao Wang, take others to the hospital to investigate the cases of the four deceased people at that time, and see if you can find anything from the hospital's surveillance like last time."

"Understood." Lao Wang nodded and agreed.

"That's it, let's go separate ways, and we'll gather in the conference room tomorrow night," Shen Ling said.

"good."

After the meeting, Shen Ling took He Xiaofei, He Xiaofei, and Peng Xin to the home of the first deceased, Xin Xiaoxia, in a hurry. Of course, the driver must still be me, because I had just taken the driver's license test.
Chapter completed!