Serious Crime Unit 1

Chapter 1254 Devil and Angel (3)
Luo Jin nodded and motioned for Meng Xia to go out first.After reading the report for a while, he clicked on the link to the semen DNA profile and data produced by the laboratory and entered it into the database for comparison. The result was that there was no matching DNA, which meant that the murderer had no criminal record.

"Luo Jin, are there any results from the DNA comparison?" Jiang Yiming was in deep thought just now and looked like he was falling asleep. In fact, he was very awake. He just didn't want to interrupt his thoughts because Meng Xia came in, so he didn't talk to Meng Xia.

"Unfortunately, the suspect's DNA is not in the database."

"Can the suspect be identified through the Y-STR detection method?"

"You can try, but it also depends on whether the DNA of the suspect's cousins ​​or male elders has been entered into the database. If not, this method is useless. If it is the suspect's distant cousins ​​or elders, we The scope will be very large, and it will be as difficult as finding a needle in a haystack.”

"Use the Y-STR test method to check first. What if there is a result? If there is no result, I will conduct further investigation."

"Okay." Luo Jin nodded, then printed out the autopsy report and gave it to Jiang Yiming to read.

After reading the autopsy report, Jiang Yiming said: "This autopsy report is similar to the previous ones. Are there any clues to solve the case?"

"The autopsy report is only responsible for determining the time of death of the deceased, the DNA information of the deceased, the cause of death, whether the deceased was sexually assaulted before death, what food he ate, his age, etc. There are no clear clues."

Jiang Yiming called everyone to hold a case analysis meeting in a small conference room.

Luo Jin spoke first as usual: "Although everyone has read the Jin Xiaosu autopsy report I gave you, I would like to reiterate: Jin Xiaosu's death time was between 2022:8 and 4:22 on August 23, [-], because Jin Xiaosu The stomach has been emptied, and all the chyme has entered the duodenum and is interrupted, which is one hour smaller than the initial inspection at the scene. This can save our police resources."

"Rape first and then kill, or kill first and then rape?" Zhou Ting asked. This question was not reflected in the autopsy report.

"This issue has not yet been determined. It should have been done at the same time. That is, the murderer first choked Jin Xiaosu out and completed the rape before she died. Because there were slight abrasions on the vaginal opening and vaginal wall of the deceased, which were only left when she was alive. With these abrasions, raping a corpse after death will not leave any scars from life."

"This means the murderer completed the rape very quickly?"

"Yes, if Jin Xiaosu was alive and the vaginal wall was rubbed repeatedly for a long time, it would leave more abrasions and even lacerations. Because when a woman is raped, it is impossible for secretions to flow out of the vagina, and forcible entry will cause It caused extensive abrasions on the vaginal wall." Luo Jin answered seriously.

"Can we determine that the murderer suffers from impotence?" Jiang Yiming asked.

"This cannot be determined, but we can think about it this way. If the murderer was too nervous when raping Jin Xiaosu, it would also cause him to complete ejaculation very quickly. The probability of the murderer suffering from impotence is as high as 60%."

"Do you think the murderer was a temporary act or a deliberate rape and murder?" Jiang Yiming asked.

"It's hard to say. I think the murderer must have followed Jin Xiaosu, and when he was in a deserted place, he forcibly dragged her into the reeds and raped her. During the rape, Jin Xiaosu tried her best to resist and shouted loudly, which led to the murderer deciding to strangle her to death. She, is this called murder or a temporary act?" Xiao Ke replied.

"I also believe that the murderer followed Jin Xiaosu for a long time, even several days, and waited for the right time before taking action against Jin Xiaosu."

"I found the fingerprints left by the murderer on Jin Xiaosu's neck, but because of a heavy rain in the early morning of August 8, the fingerprints were diluted by the rain and could not be extracted. Since the murderer dared to commit the crime without wearing gloves, he also dared to leave the semen. In Jin Xiaosu's body, this shows that the murderer most likely acted on impulse." Wu Jiang said.

"Let's put aside whether it was murder or passion killing. Old Wu, did your trace inspection narrow down the scope of suspects?" Jiang Yiming asked.

"No directional traces were extracted at the scene or on the body. I have already mentioned the approximate height and weight of the murderer. I took the suspect's shoe prints to the database for comparison and found that it was a pair of Anta sports shoes produced in 2018. Shoes, this doesn’t mean much, it only shows that the murderer’s social status and economic conditions are not very good.”

"Yingying, have you located the location of Jin Xiaosu's cell phone?" Jiang Yiming asked.

"No, the mobile phone was most likely thrown into the water by the murderer, or somewhere else. It is also possible that the battery of the mobile phone was short-circuited due to rain, so it could not be located." "Have you seen the investigation team find any suspects in the surveillance video? people?"

"The suspect's height and weight are not special, and no particularly suspicious person has been found yet. However, as long as we are given enough time to collect and use a large amount of data, we should be able to analyze the suspect who meets the conditions. However, the result may be There are many suspects, and we need to visit and investigate them one by one before we can finally identify the murderer."

"With your words, I feel relieved. What I'm most worried about is that this is a murder case. If this is the case, the murderer will avoid the surveillance cameras in Shanqian Park, such as hiding in the trunk of a car and entering the scene... …Yingying and Xiaorou continue to lead the visual investigation team to check the surveillance video, Lao Wu and Xiaoke go to investigate Jin Xiaosu’s social background, and Zhou Ting and I go to question Jin Xingwang. Let’s break up the meeting.”

Jiang Yiming and Zhou Ting came to Jin Xingwang's home. Epic Shi had been discharged from the hospital. However, she was in bed rest due to poor mental state. Her youngest daughter Jin Xiaoyue accompanied her all the time.Despite this, Jin Xingwang was still worried and stopped all work to watch over her at home.

Jin Xingwang has a restrained, persevering and gentle personality. He is 52 years old this year. He used to fish at sea for a long time in his early years. Later, he set up a fishery trading company specializing in selling aquatic products. Although the company is not big, it has a surplus every year. He now owns assets Nearly ten million yuan.

He is tall and strong, with a vicissitudes of life on his face. His skin is dark due to long-term exposure to wind and sun, but his facial features are straight, his eyes are as bright as morning stars, a few of his hair have turned white, his voice is loud and hoarse, and his expression is sad and lost, as if he has lost something. A priceless treasure.Wearing a Nike sports suit and a pair of slippers, he stood a little stiffly in the living room, seeming to have forgotten to greet them.

"Mr. Jin, please have your condolences and accept this change. There is no resurrection after death. You have experienced countless storms and waves. I believe you will be able to survive this time." Jiang Yiming patted him on the shoulder and comforted him.Then he sat down on the sofa as if he had woken up from a dream.

"Captain Jiang, when will you catch the murderer? Can three days be enough? I am willing to spend all my money to support you financially!" he asked, choking with sobs.

"We have enough funds to handle the case and do not need any financial support from citizens. It is impossible to give a specific time and date for handling the case. Please believe: justice may be late, but it will never be absent. So we need your cooperation .”

"My daughter is as kind as an angel. She even cried when her mother killed chickens. She also insisted on urging me to donate 50 yuan to the Red Cross every year. During the Wenchuan earthquake, she cried for a week and did not go to school. She is so pure. How could an angel and a devil be willing to kill her?" He burst into tears.

"We know that she was a very kind and pure girl. There are so many devils in the world and we the police also have some responsibility... Jin Xiaosu died between 8 and 4 o'clock in the middle of the night on August 10. You only went to the Jiangxi branch to call the police on the morning of August 11. Why haven't you contacted me in the past 8 hours?" Jiang Yiming asked sitting opposite him.

"Oh, forget it... My wife and I sailed to Dadan Island to buy seafood. We spent the night at the fisherman's house on Dadan Island on the nights of the 4th and 5th. I have a habit of doing everything myself, and the supply of goods is tight. , we had to go to Dadan Island to buy seafood, so we stayed there for two nights... I really regret it, if..." He couldn't continue.

"Don't blame yourself. This is not your fault. As long as Jin Xiaosu runs at night in Shanqian Park, something will happen sooner or later, unless you send bodyguards to protect her at all times. Did you contact Jin Xiaosu on the 4th and 5th?"

"Yes, when we were having dinner on the 4th, my daughter even had a WeChat video call with us."

"What time was it? Where was she eating?"

"It was a little after 8 o'clock at night. We chatted with my daughter for almost an hour, but we didn't expect that it would turn out to be a separation..." He wiped his tears and continued, "She cooks and eats at home alone. She doesn't like to go to restaurants to eat. She said The food in the restaurant is unhygienic and expensive.”

"If this was a murder, who do you think was the most likely murderer?"

"Murder? Impossible. My daughter has been kind since she was a child, has a gentle personality, and knows how to tolerate others. It is absolutely impossible to offend others... I said, my daughter is like an angel... Social relations are very simple, and her circle of friends is very small. , rarely go to entertainment venues, and most like to read and listen to music at home.”

"Is she in love?" Jiang Yiming didn't believe that Jin Xiaosu was as innocent as a piece of paper. Even the deceased didn't know the many secret motives for the murder.There was a case a few days ago where a woman walking her dog had a quarrel with the car owner because her dog peed on the tire of a car. As a result, the car owner climbed in through the window of her house and killed her.He is as indifferent to the lives of others as an ant.

"Oh, she was in love with a classmate named Qian Weichang when she was in college. After graduation, they broke up because Qian Weichang's family was very ordinary. Not only that, he often borrowed money from my daughter to go to high-end places. consumption, or call and trick my daughter into paying the bill. After we found out about this, I advised my daughter to break up with him, and she did so obediently... Could he be holding a grudge?" He looked at it in disbelief. Jiang Yiming asked.

"We will investigate this matter. Has Jin Xiaosu offended anyone else?"

(End of this chapter)