Campus Trickster (Part 9)
The results of the pharmacological and pathological tests came out, and trivalent arsenic was detected in the skin and flesh tissue of the mummy, which means that the deceased died of arsenic poisoning.
Gu Fang checked Guo Xinyou's case, and under the cause of death column it said: died of arsenic poisoning.
What is the connection between these two cases?
Shen Xingyan detected a small amount of DNA components and compared it with the only available database, but did not find any relevant information.
The information screening of students from the University of Technology has also come to an end. Except for four students who dropped out, no abnormalities have been found. The information of the four students who dropped out was then checked and found to be correct.
The files were spread out on Gu Fang's desk, his brows were furrowed, and the case had reached a stalemate.
In the forensic room, Shen Xingyan was looking at the mummy in deep thought. She imagined herself as the suspect and wondered what kind of mentality would make someone mummy the deceased. Hatred? Love but cannot get it? Or is it just pure madness?
Whatever it is, this person is definitely mentally abnormal.
The door was suddenly pushed open, and Gu Fang walked over with his hands in his pockets. He picked up a chair and sat beside Shen Xingyan, crossed his legs, and looked at the mummy. "Have you found any clues?"
Shen Xingyan shook his head, "What about you?"
"All student information has been screened, and there is no suspicion."
"Isn't he a student?" Shen Xingyan also took a chair and sat down, imitating him and crossing his legs. "We only checked the students. Other school personnel, faculty and staff, and external employees were not screened."
"I've asked Shengyu and the others to investigate." Gu Fang also thought of this. "It's been two years since the incident. It's difficult to investigate, unless..."
"Unless there are new cases."
Gu Fang smiled bitterly, "As a police officer, I certainly don't want anyone to encounter any accidents."
"Have you checked the missing persons in the past two years?"
"Jiabao is investigating. I feel like it's like looking for a needle in a haystack. If the deceased's face cannot be restored, it is impossible to determine the source of the body."
"I found a trace amount of DNA that might be useful."
There was a light in Gu Fang's eyes, "Finally, I see a little hope."
After more than a week of investigation, five faculty and staff of the University of Technology were missing, all of whom were temporary employees. Two of the five people went to Shenzhen to work, one was a farmer, and the whereabouts of two were unknown. One of them had the same physical characteristics as the deceased. Her name was Ling Xiang. She worked as a helper in the logistics department of the Industrial University in 1993 and suddenly disappeared in early 1994.
Because they were temporary employees, they only signed a simple labor contract. Many of them never come back after going home for the New Year, and they don’t say hello to the school, so no one cares.
Ling Xiang's home is in a remote rural area. When we contacted her family, they said Ling Xiang was working outside and they thought she didn't come back because her company didn't give her a holiday.
As a result, a living person had been missing for two years, and no one reported it missing.
Shen Xingyan tested the DNA of Ling Xiang's family and found that it matched the deceased, which means that the missing person was Ling Xiang.
Ling's parents are old and cannot travel far, and they are also afraid of being disturbed, so the person who comes to identify the body is Ling Xiang's younger brother Ling Kai. Before entering the morgue, Shen Xingyan prepared him mentally, "Don't get excited no matter what you see later."
Ling Kai nodded, beads of sweat appeared on his honest face, and his breathing became rapid.
Shen Xingyan sighed, opened the freezer, and lifted a corner of the white cloth. Ling Kai saw that his eyes had become big holes and his skin was as white as tree bark. He rolled his eyes and fainted.
Shen Xingyan quickly called for help, and He Li came to help, pinched Ling Kai's Ren Zhong point, and gave him a cup of hot water.
Ling Kai woke up and burst into tears, "Is it really my sister? My sister is very beautiful, it must not be her! No! Sister, sister..."
Shen Xingyan had to hit him, "We tested the DNA, and she is indeed Ling Xiang."
Ling Kai burst into tears again, gasping for breath, with tears and snot streaming down his face.
After he calmed down a little, Shen Xingyan asked him if he had brought the photos.
Ling Kai took out Ling Xiang's photo from his arms with trembling hands. The girl in the photo is about 20 years old, with a pretty face, long flying hair, a well-proportioned figure, and full of youthful vitality.
Comparing it with the mummy, not to mention Ling Kai, even Shen Xingyan felt bitter and stuffy in his chest.
Shen Xingyan gave the photos to Gu Fang, who immediately asked someone to make copies and took them to the Industrial University for further investigation.
Minister Wei, who is in charge of logistics at the University of Technology, told the police that Ling Xiang helped in the kitchen, sometimes making side dishes, sometimes washing vegetables and collecting plates, and occasionally helping with purchasing. She is hardworking and sweet-spoken, and everyone in the logistics department likes her very much. When asked who Ling Xiang was close to, Minister Wei said he was not sure.
There is an aunt who has worked in the logistics department for a long time and knows Ling Xiang and has a good relationship with her. She said that Ling Xiang suddenly started dressing up for a while, not only wearing beautiful clothes, but also putting on makeup.
She was a girl from the countryside and was usually very simple. She kept two hundred yuan for herself and sent the rest back home. How could she have money to buy beautiful clothes and cosmetics?
Her aunt once asked her if she was in love, Ling Xiang just smiled and said she couldn't tell anyone. The aunt felt that it was almost certain, but she had never seen the man and could not guarantee it.
This is exactly in line with Shen Xingyan's inference. If Ling Xiang had ever been in a relationship, then it is possible that she was pregnant and the fetus in her belly was taken away.
Is this person the one who is in love with Ling Xiang?
Shen Xingyan asked Ling Kai, and Ling Kai said that his sister was not close to any man at home, and no man liked his sister. This person is the one Ling Xiang met during work.
Who is this man? No one knows what it looks like.
The morale of the Second Detachment was greatly affected. It was like a deflated balloon. No one had ever handled such a frustrating case before. They were in a dead end everywhere.
Gu drew a relationship diagram on the blackboard and wrote love, pregnancy, and men next to Ling Xiang's name, put question marks around them, and then wrote arsenic poisoning.
Then write Guo Xinyou’s name and write arsenic poisoning next to it.
Finally, Ma Wenyuan’s name was written, and a question mark was put next to the word “crazy”.
He drew a line between Ma Wenyuan and Ling Xiang, and wrote "old dormitory" on the line. Draw a line between Guo Xinyou and Ling Xiang, write "man", and then put a question mark.
The relationship diagram is clear and easy to understand.
Qi Jiabao suddenly exclaimed, "If we find this man, will the case be solved?!"
Jiang Shengyu patted the back of his head and said, "You don't need to tell me. The question is how to find this man."
"Oh, that's right. No one has ever seen him. No one knows what he looks like."
Shen Xingyan walked over and wrote the words "Department of Chemistry" next to Guo Xinyou's name. "Arsenic is a poison that most people cannot come into contact with. Guo Xinyou is from the Department of Chemistry, so she might have come into contact with arsenic, which seems to match the cause of her suicide.
Ling Xiang was just a temporary worker in logistics. She had no access to arsenic and could only have been drugged. ”
Jiang Shengyu: "Let's check the Chemistry Department first, find the men who meet the requirements, and then screen them."
"Wait a minute, we seem to have forgotten someone." Shen Xingyan wrote a name next to Guo Xinyou's name, "She is Guo Xinyou's childhood friend, and now she is an assistant professor in the Department of Chemistry at the University of Technology."
Everyone was stunned, and Gu Fang asked, "Did you go check?"
"I found Guo Xinyou's parents. Guo's mother said that Chai Yiyao had visited them and said that Guo Xinyou was dead. She was their daughter and she would not let Guo Xinyou die in vain."
Jiang Shengyu: "Xiao Shen, this is really not nice of you. Why didn't you tell us the key information you found? You left us running around like headless flies."
"Guo Xinyou's parents are not in this city. I went there as soon as I had some free time. I came to share the news with you as soon as I got it."
Jiang Shengyu chuckled, "I wronged my good comrade."
"Now that we've found Chai Yiyao, let's ask her to go to the police station."
"I'm afraid it's not that easy. Chai Yiyao's name is not on the list of faculty members in the Department of Chemistry." Shen Xingyan poured cold water on them. She posted a photo on the blackboard, "This is a photo of Chai Yiyao and Guo Xinyu when they were young. Chai Yiyao is on the left. I know what you want to say. There is only one photo of Chai Yiyao, and I had to beg Guo's mother for it."
Everyone frowned. People look very different when they grow up, let alone girls. How can they find them with just one photo?
Gu Fang crossed his arms and tilted his head to look at Shen Xingyan, "Let's talk about anything else."
Shen Xingyan chuckled and took out another sketch. "I asked a professor from the Academy of Fine Arts to draw what Chai Yiyao would look like when she grew up, based on her childhood photo. I can't say it's 100% similar, but at least it's a reference."
"Is this even possible?!" Jiang Shengyu looked at the sketch, then at the photo, "It's actually quite interesting."
Qi Jiabao's eyes once again bubbled with admiration, "Sister Shen, how did you come up with this idea?"
Shen Xingyan smiled, "There is a profession abroad called forensic portrait artist. They can draw the suspect's appearance based on the description of the suspect by the witness or the victim, or they can recreate the original appearance based on the victim's skull, and they can also draw the suspect's appearance as a child based on photos.
There is a big shortage of portrait artists in our country, and I didn’t know anyone, so I thought of the professor at the Academy of Fine Arts. Fortunately, I was lucky. ”
Qi Jiabao admired him even more, "You are so amazing! I am just a rookie compared to you."
"Haha, don't mention it. If Jiabao hadn't mentioned it, I would have forgotten that Xiao Shen was also a recent graduate. I always felt that she was an old criminal police officer." Jiang Shengyu laughed.
Gu Fang also laughed, and his eyes looked at Shen Xingyan with much deeper depth.
Shen Xingyan did not dare to be arrogant. After all, she came from 20 years ago, and her crime-solving methods and techniques were more advanced than they are now. She modestly said that she just read more books on a daily basis.
Qi Jiabao raised his clenched fist, “I also need to read more books and learn from Sister Shen.”
Jiang Shengyu pinched Qi Jiabao's shoulders and said, "Xiaobao, if I remember correctly, Xiao Shen is younger than you."
This is embarrassing, Qi Jiabao blushed and said: "I just like to call you Sister Shen!"
Everyone laughed.
Shen Xingyan laughed along. She was used to hearing that. She had never thought that Qi Jiabao was older than her. "When are you going to the Chemistry Department? I'll go with you."
"Let's go have lunch first. After you finish eating, Xiao Shen, Shengyu and I will go together." Gu strode out.
Qi Jiabao followed behind excitedly, "Captain Gu, can I go too?"
"You and Dawei go to the hospital to find Ma Wenyuan and see if he's getting better. Maybe you can find out something."
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