Chapter 47

Style: Science Author: Xiang FengwuWords: 4182Update Time: 24/01/13 00:51:31
"Let's not talk about it for now." Seeing that Liu Mengwei wanted to say something more, Wen Qiao interrupted her directly: "There are still some doubts about Yao Feipeng's case that have not been clarified."

"Are you talking about the drowning case of a family of three?" Liu Mengwei asked: "I can only say I'm sorry. It's my limit to reach this point. Although they wanted to frame me, there is one thing they didn't say. Wrong, Yao Feipeng does have severe schizophrenia, so many of his cognitions have been distorted. Even if he accepts my dream completely candidly, the content presented and the truth at the time are likely to have a large deviation. .”

"Yao Feipeng must have been an insider to the deaths of the three of them, but I don't know to what extent he was involved. He did have hatred for that family, but it probably wasn't to the point where he had to kill them, which led him to kill those people. After the death of his son, he felt a strong sense of guilt, and these two emotions mixed together and tore his soul apart."

Wen Qiao actually didn't care about the old case she was talking about: "What exactly is the 'dream creation' you mentioned?"

Hearing his question, Liu Mengwei turned his head unnaturally: "Just treat it as a psychologist's special function and hypnotize you."

Wen Qiao's eyes were sharp and he refused to let her go: "I remember that you said on many occasions that there is no such kind of hypnosis in this world that can control people's hearts at will."

"Yes, it does not exist. Otherwise, if I just asked you to help me with a small thing, would I still have to go to such great lengths?"

"Don't tell me tongue twisters here!"

Liu Mengwei sighed helplessly: "It does not exist in this world, but I am not a person in this world."

"Again!" Wen Qiao finally couldn't bear it anymore and was about to get angry, but when he saw her innocent face, he didn't know what to say: "Forget it, let's talk about the case."

"Although the body can be basically identified as Liu Liqi from the face, a criminal case like this still requires DNA comparison to confirm the identity and avoid errors. So I contacted her parents in a neighboring city and asked them to come over. Samples were taken for comparison, but they kept refusing to come, citing the long distance and inconvenient transportation as reasons.”

"My daughter had such a serious accident, how can parents be so indifferent?" Liu Mengwei was a little surprised.

"So we first collected the remaining DNA in her living environment for comparison." Wen Qiao continued.

Liu Mengwei still didn't realize the seriousness of the matter at this moment: "Is it possible that the person Yao Feipeng killed was not Liu Liqi? Is it possible that he also found a substitute?"

"No, the comparison results are completely consistent. The biological specimens extracted from the toothbrush and bed, and the fingerprints on the glass are all consistent with the deceased."

"What exactly do you want to say?" Liu Mengwei asked.

"Do you know how to identify DNA?"

Liu Mengwei shook his head.

"One of the most common methods currently used for individual identification and kinship identification is called cell str identification. This detection method can not only identify the identity, but also detect whether the cells have been cross-contaminated or misidentified. Human normal tissue cells In the str map, a gene site has only two peaks at most. If 3 or 4 peaks appear, excluding the small probability event of triploid or polyploid mutation, it can be determined that the DNA information of the second person has been mixed in. "

"So what? Samples taken from the living environment are extremely susceptible to contamination. What's more, she lives with others, so Yao Feipeng's DNA sample must have been mixed in."

Wen Qiao looked a little complicated, but he did not continue, but changed the subject, "What do you think Yao Feipeng's real purpose was for killing his wife?"

Liu Mengwei was stunned. She suddenly remembered that when she was in the interrogation room, she had been exploring Yao Feipeng's past, but it seemed that she had never asked the most important question - the motive for the murder.

Why did he suddenly want to kill his wife? Are you still affected by the previous incident? So why now? Something happened that caused him to kill him.

She recalled Yao Feipeng's dream again. Fish, turtle, cuckoo...these images all correspond one by one. Is there anything else that she missed?

By the way, it was a rabbit. In addition to the rabbits that kept coming out of the hole, there was also the bunny-headed man who never said a word from beginning to end and just watched with cold eyes. Only the image of rabbit appears twice.

You killed the child, the white rabbits once accused the man in the story.

"Rabbit, kid." Liu Mengwei murmured.

"Liu Liqi was pregnant and was almost 5 months old when she died." Wen Qiao added.

"What did you say!" Liu Mengwei didn't know the news yet, and was so surprised that her eyes almost fell out.

"He took out the already formed fetus and disposed of it secretly." Wen Qiao said calmly, as if he was just talking about taking out a toy from the box.

"His target has never been Liu Liqi, but the fetus in her belly." Liu Mengwei felt dizzy: "It turns out that sentence was his murderous warning."

"He once told me that he felt that there was a demon living in Liu Liqi's body. This demon gave him inspiration for writing, and he wanted to take it out of his wife's body... He told me everything, I She should have known, should have prevented this from happening..." Liu Mengwei suddenly felt her stomach churning, and in front of her eyes appeared the piece of flesh with arms, legs and facial features, which looked like a newborn rabbit without hair. The nervous system that was not completely inactivated twitched strangely under the stimulation. Liu Mengwei wanted to run away as a reflex. Her heart was hammered violently, and she even began to have trouble breathing. She staggered and almost hit the table behind her, but unexpectedly she fell into a solid but warm embrace. .

Wen Qiao supported her arm and said softly: "This has nothing to do with you."

"No, you don't understand..." Liu Mengwei turned around, with a compassion he had never seen in his eyes: "You don't understand my abilities and my responsibilities..."

Wen Qiao grabbed her arm again, and there was a calming force in his palm: "You have intervened too deeply and been affected by emotions that do not belong to you. Come back! He is not your responsibility!"

Liu Mengwei slowly raised his head and looked into Wen Qiao's clear and firm eyes, as if he had found a standing lighthouse on the foggy sea.

"Do you believe in fate?" Liu Mengwei asked quietly.

This sudden question made Wen Qiao a little confused. He hesitated for a few seconds: "I didn't believe it before."

"I used to believe it." She seemed to have softened a lot and said calmly: "Do you know why Yao Feipeng insisted on killing this child and didn't even give him a chance to be born?"

"Because he feels that he has been able to predict the future of this child. He will repeat his own mistakes, have an unfortunate childhood, a twisted mind, and live in pain all his life, either hurting himself or others. Since he is so concerned about the world For anyone in the world, his birth is not a good thing, it would be better to nip this tragedy in the cradle."

Wen Qiao opened his mouth, but nothing came out.

"So, do you want to say that doesn't this just mean that a person's fate is determined before he is born?" Liu Mengwei's eyes became lonely again. "No. Do you know about the observer effect?"

The observed phenomenon will be affected to varying degrees by the act of observing, which is the observer effect. To give an extreme example, Schrödinger's cat. Before opening the container, the cat is in a superposition of two states: decay and no decay. Once the observer is added and the container is opened for observation, the cat will instantly change from the superposition of two different states to a certain deterministic state.

"I had the opportunity to be an observer in his life, but I didn't, because at that time I thought fate was already determined."

"So, what changed your mind?" Wen Qiao asked with interest.

Liu Mengwei thought of the precognitive dream she had in the underground laboratory. If she had not seen it in advance, where would she be now? Maybe he will become the real culprit behind a murder and dismemberment case, and become a fugitive suspect in the public security system. In short, I cannot live freely under the sunshine of this land. This is Alice's plan, to ruin her reputation and have nowhere to go. In the end, she can only return to that dark cage again.

"It was you, you brought me out of there, and this was not the original ending." Liu Mengwei gave him a relieved smile, while Wen Qiao was still hesitant to tell her what happened next.

"You actually had another mission when you went there that day, right? I've always felt that we can't even be considered friends. Thank you for choosing me." After saying that, Liu Mengwei had a blush on his face for some reason. When she was lying and talking nonsense, her face didn't turn red, but when she told the truth, she still blushed. Liu Mengwei cursed in her heart for not living up to expectations.

"Friends?" Wen Qiao thought about these two words and felt as if they were a lifetime ago: "I really don't have any friends."

"Is it because he has left you? That 'old friend' you have been investigating?"

"Yes, he is probably my only friend."

"Do you want to see him again? If he is deep enough in your memory, I may be able to let you meet again, of course, in a dream, just like Huang Yang saw his daughter..."

"No!" Wen Qiao interrupted her without thinking: "It's not necessary, just let the deceased rest in peace."

Liu Mengwei glanced at him strangely, she could clearly detect a hint of panic in her tone just now.

"Well, if in the future..."

"It won't happen in the future either." Wen Qiao interrupted her firmly again: "You didn't feel right today. You were too influenced by Yao Feipeng. You don't owe me anything and you don't have to feel guilty about me. Do you understand?"

"I'm sorry..." These three words seemed to blurt out subconsciously. In fact, Liu Mengwei didn't understand why she wanted to apologize.

Wen Qiao sighed helplessly, picked up the Western restaurant membership card and handed it to her, ordering: "Since you want to apologize, be more sincere and treat me to dinner as a punishment."

Wen Qiao turned around to pack his things. There were several medical records on his computer desktop, and he quickly read the contents above.

Patient's name: Liu Liqi, fetal arrest occurred in the 8th week of pregnancy, and she had a spontaneous abortion in January 2018.

Patient's name: Liu Liqi, fetal arrest occurred in the 7th week of pregnancy, and she had a spontaneous abortion in July 2018.

Husband’s name: Yao Feipeng, wife’s name: Liu Liqi, test item: HLA high-resolution genotyping. Test results: Number of matching alleles: 3/6.

HLA matching is a necessary test before bone marrow organ transplantation. This probability will be greatly increased among related people. If they are identical twins, they can be a 100% match. If they are biological brothers and sisters, there is a 25% chance of being incompatible, a 25% chance of being fully compatible, and a 50% possibility of being semi-matched, which means there is a 75% chance of being a match. However, among unrelated people, the probability of a successful match is only one in 10,000.

Although the probability is small, it is not impossible. And if this kind of compatibility occurs between husband and wife, it will cause a lot of trouble. During maternal conception, the embryo's HLA comes from both parents. The father's HLA antigens stimulate the mother's immune system to produce antibodies. These antibodies can protect the fetus from damage by the mother's immune system. However, if the couple's HLA similarity is too high, the mother will not be able to produce this antibody, and the fetus will be attacked by the mother's immune system and reject it as a foreign body, causing miscarriage. And this kind of thing seems to have happened to Yao Feipeng and Liu Liqi.

However, after experiencing two miscarriages, Liu Liqi finally survived the most dangerous period of her third pregnancy.

The fourth document is an ultrasound report dated April 10, 2019. Ultrasound tips: intrauterine pregnancy, singleton pregnancy, BPD equivalent to 19 weeks of pregnancy + 3 sizes. There is a discontinuity of about 2.7mm in the upper lip of the fetus, and a discontinuity of about 2mm in the adjacent alveolus. It is possible that the fetus has cleft lip and cleft palate, and a fetal medicine clinic is recommended.

The date of the examination was less than three days apart from the date of her murder, so this ultrasound report was the straw that broke the camel's back.

Highly compatible HLA genes, fetal cleft lip malformation, why are these small probability events concentrated in the two of them? By the way, does Yao Feipeng know that Liu Liqi was adopted by her current parents? This is what Liu Liqi's parents said when the local police came to take samples. They had no choice but to say this because no legal procedures had been completed at that time, and their purpose of adopting Liu Liqi did not seem to be that simple. And what will these messy things combined together make Yao Feipeng think of Yao Feipeng, who is already trapped in the painful memories of the past?

Wen Qiao closed all these documents one by one, leaving only the identification report issued by their forensic laboratory. This report was originally used to further determine the identity of the deceased Liu Liqi.

The sample sent for testing was mixed with the DNA of another person. This DNA is obviously different from that of the deceased. At least it can be seen at a glance that the genes indicating gender are different. This is a man's DNA, this is the DNA of the man who lived with the deceased. Once you know this, it's over and you don't have to pursue it any further.

Wen Qiao raised his head and glanced at Liu Mengwei, who was waiting outside the door. She looked surprisingly well-behaved today, with a calm temperament that could not be disturbed.

According to Mendel's laws of inheritance, there will be 1/4 STR similarity between offspring. Wen Qiao closed the last identification report sheet. How similar are the STRs between the two of them? He hasn't had time to calculate yet, nor does he intend to. .

Is it more tragic to kill one's own child because of suspicion and misunderstanding, or is it more tragic to do something unethical under the twists of fate?

No, don't compare tragedies.