ten minutes later.
Zhou Ning came to the third floor of the staff dormitory building. Liu Yongxin was waiting on the second floor. He had not checked this floor yet. After all, Cui Guanglin was a person with a very low sense of presence, and they were also searching for Zhou Xiaoyu here.
Seeing Zhou Ning coming, he quickly followed him upstairs, but there was no one in the dormitory.
"Open the door and let us check."
The guard said with an embarrassed look on his face and spread his hands.
"It's not that we don't cooperate. The keys to the teachers' dormitories are all in their hands. Just now, this old man checked. We only looked at one dormitory and asked someone to open a door."
Liu Yongxin nodded.
"I checked a few dormitories downstairs, but I needed to contact teachers to open the doors. However, everyone was in the multi-purpose hall, so I couldn't find Cui Guanglin's dormitory."
"How many teachers are there in this room?"
Zhou Ning took a glance and saw that there were two bunk beds in the dormitory. Judging from the furnishings, there were beddings on all three beds. It was obvious that in addition to Cui Guanglin, there were two other teachers living here.
As he was talking, a male teacher came over, holding up the key and said:
"I have the key!"
Zhou Ning took a quick glance and found that this person was the teacher he had just met in the Chemistry Teaching and Research Department.
"Let's check first. If there are any dangerous items hidden, it will be safe for you to find them."
The teacher smiled.
"I understand."
As he spoke, the door opened, and Zhou Ning and Da Zhao approached the room carrying survey boxes. Some liquid was spilled on the ground with bubbles coming out of the edges. Zhou Ning squatted down and did not rush over. Instead, he stopped Da Zhao and found a test paper to dip in the liquid.
When the test paper was thrown down, it immediately carbonized and turned into a pitch-black color. The teacher covered his mouth and exclaimed.
"Sulfuric acid, this is concentrated sulfuric acid!"
Zhou Ning nodded. The chemistry teacher was really good. He could guess what the substance was just by looking at it.
However, the liquid was not splashed over a large area. Zhou Ning looked towards the source and saw a brown glass bottle broken in the corner of the room. It was obviously a bottle of sulfuric acid that fell and caused the liquid to spill. However, the fact that this thing could be placed in the dormitory made Zhou Ning a little scared.
"Da Zhao, find the special evidence box and pick up the bottle fragments. Be careful not to touch the liquid and your gloves."
The flesh on Da Zhao's face trembled, and he quickly came over, put the fragments into a glass box, and then carefully closed the lid.
"Which bed and cabinet belong to Cui Guanglin?"
The male teacher pointed to a bed near the window and said:
"That bed, the cabinet and the desk by the window are his."
Zhou Ning walked over and found the bed very tidy. Not only was there no hair, but even the sheets were wrinkle-free. He lifted the mattress and found nothing underneath. The cabinet was even emptier, with only a washbasin containing toothpaste, toothbrush and soap.
Zhou Ning did not give up. There was a broken bottle of sulfuric acid at the door, which obviously had not been cleaned up in time. The place was so clean. Could it be that someone came and disturbed him?
No, something must have been missed.
However, the room was so small that everything was visible at a glance. Zhou Ning glanced out the window and opened it. The window of this room faced north, and the north wind rushed in quickly as soon as it was opened. Da Zhao came over from behind.
"This is nothing. Did he lock up Xiaoyu and hide here for three hours? What's the point of this?"
Zhou Ning didn't say anything. He took a step forward and stood by the window, leaning half of his body out. At this moment, he saw a plastic bag hanging on the edge of the decorative small guardrail outside the window. Zhou Ning had an idea and climbed up to the window by leaning on the windowsill.
Da Zhao didn't dare to say anything and hurried over to support Zhou Ning. This was the third floor. Although it was not high, it was still a little scary to see a person squatting on the window.
Zhou Ning did not take action directly. Instead, he poked the plastic bag with a swab. The bag swayed, and there was no reaction on the swab. Zhou Ning then picked up the plastic bag with tweezers and handed it directly to Da Zhao.
Liu Yongxin shouted from behind:
"Don't take it with your hands. Handle it with care."
Da Zhao shuddered, grabbed an oval pair of tweezers, took the bag and placed it on the table, while he helped Zhou Ning jump down.
Zhou Ning used two tweezers to open the bag. There were four brown glass bottles inside, exactly the same as the sulfuric acid bottle. Da Zhao came over and quickly took a picture.
"Oh my god, there are actually four more bottles here. Could it be that there is also sulfuric acid in them?"
Without waiting for Zhou Ning to speak, Liu Yongxin came over and shook his head.
"Take the things back. Dr. Lu is still here. He is a professional. Let him identify them."
Da Zhao didn't waste any time and quickly found a box to pack the things. This thing was most likely sulfuric acid, and it would be dangerous if it spilled or broke, so it must be kept well.
When the teacher saw Zhou Ning was about to leave, he pointed at the sulfuric acid liquid on the ground.
"What are we going to do here? Can we clean it up?"
Zhou Ning nodded.
"The samples have been taken. There is no need to keep them at the scene. Please clean them up. I think you are more professional."
The man breathed a sigh of relief and quickly poured water into the room. After all, not much was spilled, so this amount could be diluted and cleaned up, and it would not hurt anyone.
…
Half an hour later.
Criminal police team.
Zhou Ning jumped out of the car carrying the things, Da Zhao held the box, and Liu Yongxin followed behind. The three of them hurried to Dr. Lu's office. The things that needed to be sent for inspection had already been sent on the way, and the only things left were the four brown bottles in the bag.
"Dr. Lu, please help me take a look. This is a bottle found outside the window of the suspect's dormitory. A bottle of sulfuric acid was broken on the floor of his room, and some was spilled on the floor. I'm not sure what these substances are."
Dr. Lu came over happily, quickly asked someone to take the bottle, and also instructed considerately:
"Don't destroy the bag outside. Zhou Xiaozhou still needs to extract fingerprints. This is also evidence for them. Oh, and let's extract the outside of the bottle first. Just give me the powder and brush. We can do it."
Zhou Ning naturally didn't waste any words. Da Zhao and Liu Yongxin had been with him until now and had not had a meal. He felt bad for them and quickly left the relevant tools behind.
"Thank you for your hard work, Dr. Lu. Let's go eat something."
"Hurry up and go. Just now, Master Xu arranged for someone to deliver lunch boxes to you. You have been busy till this hour, so hurry up and eat."
Liu Yongxin waved his hand.
"You guys go and have your meal in peace. I'll go with you to the Municipal Bureau. The amount of samples sent for inspection this time is huge, and the various tests are very complicated. I'm afraid there will be omissions if Xiao Liu explains everything."
Zhou Ning was a little worried, but more of apologetic.
"Master, please finish eating first."
Liu Yongxin rolled his eyes.
"Stop talking nonsense and listen to me and you."
With that, Liu Yongxin left. Zhou Ning knew that his master was worried about him, and this matter was indeed something that Liu Yongxin could not explain clearly on his own, and it was easy to make mistakes. If his master followed him, the inspection would naturally be faster.
Thinking of this, he immediately dragged Zhao Xinli out of Dr. Lu's office. Big Zhao was stunned and looked up and down at Zhou Ning several times, as if observing Zhou Ning's condition.
"I say, why aren't you in a hurry? Cui Guanglin is interrogating you, and Xiaoyu is still in the hospital. Why are you in a hurry to eat?"
Zhou Ning shook his head.
"Don't worry about Cui Guanglin. He won't explain in a short time. We also have to wait for the test results to come out. Only when the comparison is successful can we talk about the next step. As for Xiaoyu, what good is there? On the contrary, we have to eat well so that we can have the energy to do more things."
Da Zhao sighed. Although Zhou Ning said so, he knew in his heart that Zhou Ning was really anxious, and the kind of anxiety that made him unable to help. The calmer he was at the moment, the worse he felt.
"Okay, let's eat first!"
The two washed up, quickly resolved the fight, and drank a large glass of water. Then Zhou Ning dialed He Shancun's cell phone. After one ring, the other party answered.
"I'm wondering why you're so calm and don't care about your sister's condition?"
"I've left it to you. I'm not worried."
He Shancun smiled. He was very satisfied with Zhou Ning's answer.
"Xiaoyu is in good condition. The wound on her head was not deep and she had to get six stitches. She didn't shave too much hair to avoid affecting her appearance. I had her blood tested and no problems were found.
The nurses checked his body carefully, and there was not a single needle mark. However, if he was unconscious from inhaling anesthetics, it would be impossible to detect it in the blood. After all, it was five or six hours ago. "
Zhou Ning knew that the hospital's testing conditions were limited and now he could only wait for the results from the testing center.
"I know, as long as Xiaoyu is fine, it's fine. Also, which nurse did you find to examine Zhou Xiaoyu?"
"Ah, what's the matter? Should I go check it out?"
"Don't give me that. What I mean is that I didn't find a female doctor to examine her carefully. I was afraid that she might have some scars on her body, or... Let's put it this way, among the several dead bodies found in this case before, four were HPV positive and one was HIV positive. I can't tell whether it was their own virus or the murderer's problem."
He Shancun was stunned for a moment and his face became serious.
"I understand. Let's go do a body check and related tests now. Why didn't you tell me earlier? Have you collected blood samples from her scumbag boyfriend? Is there any screening for related viruses?"
"He was delivered at noon. I just thought of Xiaoyu and wanted to check to make sure. Okay, I'm hanging up now."
After hanging up the phone, He Shancun held the phone and clenched his teeth, feeling that he had made the wrong friend.
He glanced at the intern beside him, and saw that person was so scared that he quickly shrank his neck and wanted to bury his face in the screen.
He Shancun dialed a number, but the other party had a bad attitude when he answered.
"Director He, my calves hurt when I received your call. What's going on?"
"Hey, personal matter, a friend's sister was sent to the emergency room in a coma. We are not sure whether she has been violated. After all, the suspect has been arrested. This person has many diseases, including HIV and HPV. Can you take a look?"
"I'll be there in five minutes!"