novice forensic medicine

Ma Liang thought about it.

"When we arrived at the theater, the concert was not over yet. We were taken backstage by the security guards. A person in charge received me and asked me several times from the side, meaning did Xu Qingquan do something?
I said that we can't disclose the details of the case, but at present, the deceased was only related to Xu Qingquan, and he was regarded as his girlfriend. I wanted to find him and rush back for an examination to rule out suspicion.

Hearing what I said, he didn't seem to be so nervous at the beginning, and then nodded and walked out. When the door was closed, I heard him shouting in the intercom, let the cello substitute come on, don't make any mistakes in the last song, and Xu Qingquan Come down, someone is looking for him.

I thought, this is a bad performance. We waited for a long time, and they went to look for it, only to find that Xu Qingquan was chatting with someone, and after we mentioned our identities, Xu Qingquan remembered this matter, he said I forgot, just thinking about acting.

He said that he was always nervous recently, and he had severe headaches due to hair loss, and his memory was not very good. He took painkillers in front of us. He didn't feel irritable or conflicted.

I was just very surprised, and asked Li Li carefully about the process of the accident. She didn't feel the grief of losing her lover, just like knowing that an acquaintance had an accident, and then she was a little bit embarrassed, that's all. Afterwards, we went to the provincial department to sample.

Waiting for the result, I quickly drove back with him. Xu Qingquan sat in the middle of the back row, I sat on the left side of the back row, and he sat on the right side. There was no embarrassment all the way, but when something happened, it was only a moment. thing.

I was a little sleepy, and I felt the lights were dazzling. As soon as I opened my eyes, the car started to spin. I could only try my best to press Xu Qingquan's head and hands under my armpits, and then I didn't know anything. "

It seems that Zhou Ning is recording, and there is a rustling sound from the speaker.

"He said headaches, hair loss, memory loss, nervousness?"

"Yes, okay, give the phone to Lao He. I'm done asking, you guys take care of yourself, don't be in a hurry to leave the hospital, after these busy days, we will go see you."

Ma Liang was a little embarrassed, quickly waved his hand, and handed the phone to He Shancun.

"Director Zhou, don't be so polite. If we weren't cautious, there wouldn't be such a big mess. You can work on the case. I know how busy these days are. Let's talk."

He Shancun took the mobile phone, turned off the speaker, waved to several people, walked out of the ward quickly, walked into the safe passage, and then asked in a low voice.

"Tell me, what else do you have to say?"

"Hehe, you are also very interested. Let me ask you, apart from blood tests, how else can you tell whether it is vitamin A poisoning?"

"It would be nice to ask no earlier. Do a lumbar puncture and check the pressure of the cerebrospinal fluid. This is the most intuitive inspection. His hair loss, headache, memory loss, and nervousness are indeed like vitamin A poisoning, but if you have similar cases before , it is naturally easier to judge, but I think it is the fastest to do a waist piercing."

Zhou Ning exhaled, and suddenly gained confidence.

"Then do it. You said that this method is not suitable for our autopsy. After the inspection, tell me the result. I want to see the concentration of various substances in this test, especially impurities. If these are the same, then it may be the same person. Poison."

He Shancun hummed twice.

"Okay, fuck off, call you, and arrange work for me. Every day, you are either hospitalized, or your colleagues are in a car accident. If you don't want to be your Baidu, it's really annoying."

Zhou Ning hung up the phone and rubbed his nose, while Liu Yongxin laughed.

"Old He's attitude is not bad. Although he said unforgiving words on his mouth, he didn't delay you in one thing, but according to what he said, you can make a distinction by doing a waist piercing, so the speed of judgment is also fast. can improve."

Zhou Ning nodded.

"I'll have someone go downstairs to wait for the blood sample, and tell Sister Cui again. I think she will be interested. After all, the more samples you have, the easier it is to find problems."

Liu Yongxin sat on the sofa, crossing his legs.

"Don't be sad, you are in a hurry now, it's useless at all, first, you have to wait for the inspection; second, Peng Shinian can't ask about the progress; third, it will take time to investigate Zhang Fangfang and Liu Meiling, so don't be impatient !"

Zhou Ning got up, looked out the window, he knew he was impatient, and sighed.

"I know I'm impatient, but Master, I always have a feeling that Li Li, Zhang Fangfang, and Liu Meiling must have some secrets. After all, the scene of three classmates dealing with a man is too uncommon, and most people can't accept it. , but they seem to be enjoying it."

Of course, Zhou Ning still has a doubt, lingering in Zhou Ning's mind.

But there is no evidence to support it at all, and it is not convenient to say it out, just like the headless serial murder case in Hai'an City after 19 years, Zhou Ning always felt that there might be something in the past between these three people and Xu Qingquan, It's that they haven't found it yet.

2013. 9, 4

Early in the morning, outside the laboratory door.

Zhou Ning folded his arms and looked at the access control at the door of the laboratory.

"He hasn't come out these days?"

Da Zhao nodded.

"A post-it note was pasted on the door, which said three meals can be left at the door, don't knock on the door, the access control has been reset by him, Xiaoqu has not been opened, if there is no toilet and bathroom in the laboratory, I would have Someone came over to demolish it, and every day there was garbage from the previous day at the door, but it has been three days, should we go in or not?"

People who do research are persistent, Zhou Ning is very clear, although Xiaoqu is very suitable for their work, but it is not like this at all in school, when talking to him, only those who like to listen or are interested will reply a few words, otherwise they will Take you as air.

But this guy has been in seclusion for three days, and I'm really worried. If he didn't find any results in other things, he was driven crazy.

Zhou Ning raised his hand, and was about to say that when he hit the door, the door was opened, and Peng Shinian stood at the door with an unshaven beard.

After swiping with his access control card, there was a beeping noise, Peng Shinian brushed his hair and said:
"Okay, the access control has returned to normal, you can come in."

Xiaoqu pushed away the people in front of her, squeezed to the front, looked at the gate guard and looked at Peng Shinian, with surprise and doubt on her face.

"What did you do? I didn't even unlock it. What did you set up?"

Peng Shinian smiled, several creases appeared on his dirty face.

"It turned out that when I was in the laboratory, I learned from their R&D programmers and set my card as the main card. If I swipe the card in reverse, nothing can be opened here, even the person who designed the software, because the password is set to scroll."

Da Zhao waved his hand and pushed Xiao Qu away.

"I said poet, are you in retreat, boy? The door is closed and we are not allowed in. You made yourself like a mine-stealer. What did you do?"

Just as Peng Shinian was about to speak, he glanced at Zhou Ning, and then smelled it on himself. The smell almost sent him away, and he couldn't help retching.

"I'm going to take a shower and change clothes. Come in first, and I'll tell you in detail later."

A group of people, looking at each other, walked into the laboratory without talking nonsense.

Da Zhao glanced at the room, covered his mouth and nose, called Sun Gaotie, and quickly opened all the windows in the laboratory. Of course, the door on this side was also opened. After a long period of ventilation, the smell dissipated.

Ten minutes later, Peng Shinian came out with a shaved beard. Although his hair was wet, it looked much normal. Seeing Zhou Ning looking at him, Peng Shinian was a little embarrassed, and hurried to Zhou Ning.

Holding the remote control and turning on the display, several pictures are constantly displayed on it. It seems that there are a little orange traces in the black background.

Although I don't know what it is, Peng Shinian can study it for three days, it seems that he has found something.

"In the past two days, I have compared many things. The thing that interests me the most is this thing. It was found in the gap between Xu Qingquan's shoes, and in the gap between the wheels of his trolley case and the outside of the cake box. , also found these grains or pollen.

After detailed analysis and comparison of various components, I found that this is a very characteristic plant in Qindao, called Qindao copper hammer grass, which is an annual herb of the genus Achyranthes in the Asteraceae family. The tongue is white, and the largest yellow part in the middle is the stamen.

After the flower fades, the pistil will remain until the whole plant withers. This plant loves light, is drought-tolerant, and does not choose soil, but is extremely afraid of water. It often grows on sunny hillsides without shrubs. Most of the mountains around Qindao are stone mountains. , the root system of this plant is not well developed and cannot grow.

Therefore, their distribution area is very limited, most of them are low hillsides, places with plenty of sunshine, and places with less human activities. Their blades are sharp and serrated, which can cut people if you don’t pay attention. Therefore, the distribution range I gave is, less than the area shown on this map. "

Da Zhao coughed, and he understood that Peng Shinian already had an idea, but it was related to his research subject, and he always wanted to prove something, so there is no time now.

"Don't talk about the theory, just talk about the result, where do you think it will appear."

Peng Shinian pursed his lips tightly, seeing that Zhou Ning was also looking at him, so he hurriedly said:
"According to the growing season of Qindao copper hammer grass, it will bloom from May to September. I think the cemetery is the most suitable place with few people, soft soil and gentle slope, and sunny and less water."

Da Zhao thought for a while, took out his mobile phone, and glanced at the lunar date on it.

"August 8st is the Hungry Ghost Festival. We Qindao people usually go to sacrifice on the 21th or [-]th day of the seventh lunar month. Of course, the time is inconvenient and it is not impossible to advance two days. At this time, we encountered copper hammer grass. The chances are great, I remember Xu Qingquan's parents are gone too, right?"

Xiao Qu glanced at Peng Shinian at this time, and showed the notebook to Da Zhao and Zhou Ning.

"Last night, the poet asked me to check it out. The cemetery of Xu's parents is in Jingkou District, and it is a very high-end double tomb. I also checked the monitoring of the Ring Bay Expressway and the Submarine Tunnel, but I didn't see Xu's siblings. There are traces of the passage of several people."

Big Zhao stared round his small eyes.

"They didn't go to the cemetery, so who did?"