Panda Criminal Investigation Team

Li Qianqian is a junior student majoring in business administration.The fall semester has just started in September,

Every third-year student is faced with arduous learning tasks and preparations for life.At this moment,

Students should start to think about where to go after graduation: Those who are going to find a job should start looking for internships,

Think about what to do in the future; those who take the postgraduate entrance examination must find a mentor,

Prepare exam materials; those who go abroad for further study have to accumulate credits according to the entry requirements of different foreign universities... During this busy semester,

Li Qianqian suddenly fell ill.

The initial symptoms were nausea, anorexia and numbness of lower extremities,

As Li Qianqian's hair began to fall out,

When you wash your hair, grabbing a handful can block the drain.In order to cope with the make-up exam, she did not go to the hospital for examination,

Instead, she persisted silently, but after a few days, Li Qianqian's hair almost fell out,

Pain in lower extremities that makes it difficult to walk,

That's when she had to go to the hospital.

The Fifth People's Hospital near the school did a physical examination on her and found no abnormalities.

But I found white stripes on Li Qianqian's nails,

the Michaelis line,

Thus suspected that she was poisoned by thallium.The Fifth People's Hospital is a district-level hospital,

There is no test item for thallium element,

After contacting the nearest municipal hospital,

Urgently sent her blood to the hospital for testing. One day later, it was confirmed that Li Qianqian's body did contain excess thallium, which reached the poisoning standard.

Immediately after that, she was transferred to another hospital.Afterwards, Li Qianqian's condition deteriorated further,

Pulmonary edema, liver damage, and delirium developed.After being given Prussian blue in the hospital, her condition was relieved and stabilized for the time being.

According to Li Qianqian's parents, she experienced hair loss and lower limb pain at the end of last semester. At that time, her family accompanied her to the hair loss clinic and orthopedics department.

The blood test items in the hair loss clinic only include routine hormones, vitamins and metal elements. The metals detected are only common elements such as iron, zinc, copper, lead, and mercury, and there is no detection of thallium.The blood test results showed that Li Qianqian was only slightly deficient in vitamin B6. The doctor prescribed a small bottle of vitamins for her and ended the diagnosis and treatment.

The Department of Orthopedics performed an MRI for her, and found that the physiological curve of her spine became straighter, and her fourth and fifth lumbar intervertebral discs were bulging and protruding respectively, which compressed the spinal nerves, and indeed caused certain pain and numbness in the lower limbs. Li Qianqian thought that these symptoms were caused by vitamin deficiency and lumbar spine disease.

Li Qianqian's grades are not good, and she is often nervous when reviewing at the end of the semester, and she is sedentary for a long time, which is indeed prone to endocrine disorders and spinal problems.These symptoms gradually disappeared after she returned home during the summer vacation, which further verified her conjecture—it was all because of her too much mental pressure.

It was not until thallium poisoning was detected that her family members associated her hair loss at the end of last semester with the poisoning. While shocked and angry, they suspected that the poisoner was a classmate at school. The symptoms were relieved, and she had no history of exposure to thallium. Obviously, she was poisoned when she was at school.

"We have a total of 132 junior students in our department. The international class has the largest number of students, with 39 students, including 22 girls and 17 boys. These days, girls study better than boys." Director Chen led them in the spacious and grand Walking in the management building, their reflections can be clearly printed on the marble tiles under their feet: "Although Li Qianqian's grades are not good, she works hard. I taught them a class last year, and every time she sits in the front Third row... Hey, how could this kind of thing happen in school."

They passed by a large classroom that can accommodate 500 people in class at the same time. There are three huge projection screens on the podium, and the seats in front of the screens are also divided into three areas, separated by two corridors in the middle.

"This is the largest multimedia classroom in our department. Many international exchange meetings have been held here. The classroom is equipped with 360-degree surround sound, and the sound effect is comparable to that of the Great Hall of the People." Director Chen opened the door of the classroom and explained to them .

"Wow, really advanced!" Hao Jinyang's praise was not sincere, because he immediately changed the subject: "How many people live in the girls' dormitory in the school? Who does Li Qianqian live with? Are they on good terms? Can you show us there?" ?"

According to historical experience, the person who poisons is often the closest person to the victim, and among them, the roommate is the culprit.

"We have four dormitories for four people, and each dormitory is equipped with an independent bathroom. There are few schools with such good accommodation conditions, right?" There are three more girls, they are He Jing, Yang Ying and Wang, what is Wang?"

"It's Wang Xiaoqi." Director Liu of the Academic Affairs Office added.

"Yes, it's Wang Xiaoqi, just the three of them. The girls in their dormitory all have good grades. He Jing and Yang Ying both receive scholarships. The relationship with Li Qianqian can't be considered particularly good or bad. Little girl It's normal to have some small conflicts at home, I only know that they had some disputes about work and rest last year, which was resolved by their counselors."

He said that Li Qianqian suffered from a sleep disorder, and there was nothing serious about it, except that she was prone to fussing after falling asleep at night, sometimes talking in her sleep, and kicking on the bed.The psychiatrist said that she was usually under too much pressure and didn't find a suitable way to vent it. At night, the gate to control emotions was loosened, and negative emotions came out all at once.The girls in the dormitory wanted to sleep well, especially when the exam was approaching for a few weeks, so they asked Li Qianqian to live in another dormitory, but afterward the counselor helped mediate and the exam passed smoothly, so the matter was not mentioned again.

Hao Jinyang and Xiao Mi walked around the management building, interviewed some of Li Qianqian's classmates, and then entered the girls' dormitory under the leadership of the dormitory administrator.As Director Chen said, the dormitory conditions of X University are quite good. Not only are there independent bathrooms, but the dormitories are also well divided. Each person has a separate area, with a bed on top, a desk on the bottom, and a row of spacious bookcases next to the desk.Li Qianqian's desktop is very clean, unlike the other three tables that are full of debris, but a thin layer of dust has accumulated.

On this day, the counselor called the three girls out of the teaching building and asked them to go back to their dormitories to cooperate with the police for questioning.There are a total of four chairs in the dormitory, but no one is willing to sit on them. There are so many people so many chairs, no one is suitable for sitting.Finally, the three girls sat down with Xiao Mi, and the two directors were polite and stood together with Hao Jinyang and the counselor.

"I'm the eldest sister of the criminal police team, Mi Xiaotang, I have a few questions about Li Qianqian, why don't you introduce yourself first?"

Hao Jinyang felt his scalp tingle when he heard Xiao Mi's pretendingly friendly voice.The short-haired girl on the opposite side seemed to think the same way, because she raised her legs and looked a little rebellious in her eyes. After shaking her head, she said to Xiao Mi in an almost indifferent voice: "My name is He Jing."

There is no follow-up.

He Jing is a very cool girl. She is 1 meters tall and has a darker complexion. She has oblique bangs that cover half of her eyes. Beat the beat with the soles of your feet.Xiao Mi's smile froze on her face, besides showing her fierce nature, she didn't know how to continue the conversation.Fortunately, the counselor He Li smoothed things over at this time: "He Jing is not good at dealing with people. Although she doesn't talk much, she is actually very enthusiastic. Her hometown is in the Northeast, and she is very good at reading. She is one of the top five students in our grade. Name, and last year I got a scholarship from the department.”

"Third prize." He Jing added, shaking her legs.

"Yes, the third prize." The counselor looked at Yang Ying: "It's good for this one to study, where was he last semester?"

"No.2 is also the third prize."

Yang Ying showed a sweet smile: "The bonus is 500 yuan."

The counselor's face was a little gloomy, and he cleared his throat and continued: "Yang Ying's hometown is in province Z, not far from here. Last year, a project in her hand won No. Academic journals have a bright future."

Yang Ying is a petite girl with a simple ponytail. Although she is not pretty, she looks very refreshing.She wore a light yellow T-shirt, with only a pocket sewn on the chest as a decoration, and a pair of clean and simple light-colored jeans on her lower body. Together with the eye-catching He Jing, she looked ordinary and very special.

The last one left was Wang Xiaoqi who did not get the scholarship. She was wearing a pair of thick and round black-rimmed glasses and a pair of loose overalls. She looked immature and innocent.Wang Xiaoqi rolled her eyes and said loudly: "Even if she is poisoned, you don't have to doubt us, right? Who has the time to poison her! Besides, we have a good relationship, and we went to see her in the hospital yesterday. Do doubt You should also suspect her boyfriend? Anyway, he is not a good thing!"

Wang Xiaoqi was talking about Li Qianqian's boyfriend, Lin Hai.This name was also mentioned by other students in the department, and everyone felt that he was not good enough for Li Qianqian.Rather than differences in family background or economic status, students are mainly concerned about appearance and learning.The Lin Hai that the students said is not only short and fat, but also likes to fail exams all the time. The most common thing to do when dating Li Qianqian is to copy her homework, even the exams are sitting next to each other, copying from top to bottom, from left to right. Copy to the right... Li Qianqian herself only got [-] or [-] points, but Lin Hai got [-] or [-] points. If she fails the exam, she will be blamed for her incompetence.For example, at the end of last semester, the two almost broke up because they failed the same course.

But killing someone just for failing a few subjects is too childish. Xiao Mi and Hao Jinyang didn't pay much attention to Lin Hai, but instead focused their investigation on the dormitory. From the very beginning, they rushed to their roommate of.

The two most famous poisoning cases of college students in my country are the Fudan poisoning case and the Tsinghua Zhu Ling case.Lin Senhao, the inmate in the Fudan poisoning case, poisoned his roommate Wang Yang in a bucket in the dormitory due to trivial life frictions, resulting in his death.In the case of Zhu Ling at Tsinghua University that is still pending, the biggest suspect is Zhu Ling's roommate, Sun.History is always so close, and big cases that shake the hearts of the people are so easy to imprint on people's hearts, so that every time a student is poisoned, the first person to suspect is his roommate, and a sentence derived from this In a fashionable word - thank the roommate for not killing me.

Hao Jinyang and Xiao Mi questioned the three girls for a long time, and Xiao Mi finally gave up her self-image, crossed her legs, scratched her neck and asked questions, from how they met, to minor life conflicts, to other suspicious things. classmate... Later, the two old directors couldn't stand still, and together with the counselor, they occupied the girls' chairs, and then everyone sat down, and those who couldn't find a chair sat on the table... until four o'clock in the afternoon. It was only after the questioning was over that the notes filled ten pages.

Saying goodbye to the two directors, it was already evening, and the sky was soaked in orange red by the setting sun.Hao Jinyang and Xiao Mi trudged on the campus, humming and hurrying, they were going back to the police station.Before leaving, Xiao Mi dragged Hao Jinyang to the university commercial street: "The egg-filled biscuits of X University are very famous, let's buy one and go back to comfort Yu Renjie."

After queuing for a long time, they bought two biscuits, one of which they shared and ate together, and the other was tied in a transparent plastic bag, ready to take home.After checking the airtightness of the bag, Xiao Mi asked Hao Jinyang seriously: "Have you noticed that the atmosphere between Cheng Bin and Yu Renjie is very strange recently?"

Hao Jinyang thought for a while and replied: "It seems that something is wrong. Although it was not very good before, it is obviously worse now."

"Didn't Cheng Bin say it last time when he was drunk? He hates Yu Renjie the most. Once he has said everything, there is no need to hide it. What is easier than the boss wearing small shoes for his subordinates? Can you, brother?" It’s really bitter, it’s so hard that sometimes I can’t stand it anymore, you have to show respect to him!” Xiao Mi said and stuffed the pancake into Hao Jinyang’s hand: “You take this cake back and give it to him, even if you bought it of."

Hao Jinyang took the greasy plastic bag and nodded gratefully.