novice forensic medicine

Chapter 36 What happened?

Liu Yongxin shook his head.

"The evidence is weak."

Zhou Ning nodded, and put the evidence bag of the kitchen knife on the table.

"When Chen Zhenya was strangled, the latex gloves were torn. I don't think the murderer would have noticed. After all, it was the time when his adrenaline was soaring. The thrill of revenge occupied all his thoughts, and there might be residue on the knife. Let's see , can you always be lucky!"

Liu Yongxin saw the kitchen knife with an excited smile on his face.

"Okay, have you found the first scene?"

Zhou Ning nodded, and learned everything that Bihai Lantian Garden discovered from Liu Yongxin.

"Never underestimate the aunts in the community. Their observation skills and information are always the best. Come on, don't let us start work."

After speaking, the two began to carefully observe the handle of the kitchen knife. According to the shape of the wound on the face of the deceased, Liu Yongxin judged that the murderer was right-handed. If the damage to the glove was not found, it must be a relatively hidden location, so it can only be under the palm or the side of the little finger Location.

After searching for it, I found a small triangular piece of latex glove at the end of the knife handle.

It just scraped at the base of the kitchen knife shaft, protruding out of the groove where the handle turned upwards. This kitchen knife is quite old and the handle is also movable.

There was blood on the fragment, and Liu Yongxin grinned.

"Hurry up, tell Xiao Liu to come up, don't send it to the county hospital, this thing and the murder weapon, send it to the city bureau together, I'll call the inspection center of the city bureau now, let him do it carefully."

Zhou Ning thought for a while, and found out the evidence bag of the deceased's underwear.

"Since the inspection is still the kind that requires people, why not send the deceased's clothes and pants for inspection as well. I found a few dried marks on the front door of the deceased's pants. I'm not sure if it's urine or something else."

Liu Yongxin nodded, he naturally agreed with this.

Zhou Ning took out the phone and asked Xiao Liu to go upstairs. Liu Yongxin gave orders, and Xiao Liu hurried away. Then Liu Yongxin called an acquaintance in the Municipal Bureau. That kind of politeness was not so respectful when talking to Xu Dayuan, but he asked him to work overtime Work, really have to speak well.

After returning home from get off work, after taking a shower, Zhou Ning buried himself on the bed.

Exhaustion and drowsiness came flooding in, just when he was about to fall asleep, the phone rang, Zhou Ning quickly grabbed the phone, saw Momo Xia's name, and quickly connected the phone.

"Hey, Teacher Xia!"

"Zhou Ning, did I interrupt your work?"

"No, I'm off work and I'm at home."

Xia Momo was obviously relieved, and her tone was lighter.

"I have nothing else to do, just want to ask how the model is, whether it can help you?"

Zhou Ning smiled, as if Xia Momo's two little dimples were in front of him.

"I've been busy all this time, so I didn't tell you. This model has helped us a lot. Today, we have found the identity of the deceased. Thank you, Teacher Xia."

"You don't need to say polite words, then you have a good rest, I won't bother you, as long as I can help you."

Zhou Ning sat up.

"Okay, you have a good rest today. You didn't sleep all night last night. By the way, this case is urgent. I won't go to your class tomorrow."

"I see. Let's talk after you're done. Besides, if you don't have time on weekends, you can come to my place to pick up a few plaster casts. You can practice when you have time at night. After drawing pictures, just send them to me on QQ."

"Okay, then I'll call you when I'm going over."

"Good night."

"Good night."

Hanging up the phone, Zhou Ning plugged the phone into the charger, and fell asleep like this. Of course, within 2 minutes, he reappeared in the room without doors and windows. There was still a stack of books in front of him, and the system's notification sounded again.

Case number one
The next day.

As soon as Zhou Ning arrived in the team, he saw busy figures one by one.

Zhao Xinli followed Zhou Ning into the office with a mysterious face, closed the door without Zhou Ning asking, Zhao Xinli started nagging.

"Yu Jingwei and his daughter were brought back last night, and their blood has been drawn for testing to see if it matches the DNA you extracted. The comparison is quick, right?"

Zhou Ning glanced at his watch.

"If you sent it last night, it will almost come out."

Zhao Xinli raised his eyebrows and bumped Zhou Ning's arm. In fact, he wanted to hit Zhou Ning's shoulder, but he was almost too tall.

"Then why are you still in a daze, hurry up and look online!"

Zhou Ning didn't argue, and quickly turned on the computer. There was a sound like a tractor starting for a while, and this old and dilapidated computer was successfully turned on.

Zhao Xinli was on the sidelines, and kept complaining.

"You said that we have set up districts, why don't you give us some new household items, just throw this broken computer outside, and it's not rare for people who collect junk to pick it up."

"You have the guts, tell Xu Da about it."

Zhao Xinli hesitated for a second, and smiled and waved his hands.

"I'm just complaining, but I heard that we are going to move to a new building soon, and it will be completed by the end of the year. It is estimated that we will be able to go to work in May next year. Finally, we are no longer on the second floor of this small building. Not to mention I still miss it a little bit."

Zhou Ning gave him a blank look, and opened the mailbox without further ado. Sure enough, 10 minutes ago, the Inspection Center of the Municipal Bureau sent an email.

After opening the download, both of them stared at the screen. Zhao Xinli couldn't understand, and Zhou Ning read the reports one by one.

The location of the front door of the deceased's trousers was found to be the deceased's rice green liquid.

The two DNA found on the nylon rope and the knife belonged to the same person. This discovery did not surprise him much, as it was expected after all.

But when he turned to the last report and saw the conclusion, Zhou Ning was stunned.

"What's up, what's up, tell me!"

"The No. 82 blood sample submitted for testing does not match the No. 2 DNA, and they are not from the same person. That is to say, the DNA found in Jingwei does not belong to the same person as the DNA found on the nylon rope and the knife."

"Wrong catch?"

Zhou Ning nodded, quickly printed out the report, and handed it to Zhao Xinli.

"Hurry up and send it to Xu Da."

Zhao Xinli took the report and ran away, just as Liu Yongxin came in humming a tune, the two almost bumped into each other, Zhao Xinli didn't bother to talk, so he ran to Xu Dayuan's office to see Zhao Xinli's figure, Liu Yongxin walked in with a puzzled face .

"Why is this kid so dazed early in the morning? What happened?"

"Just now the city bureau sent the test results. The traces on the trousers were the deceased's beige liquid. The DNA collected on the knife we ​​sent the sample belonged to the same person as the one on the nylon rope. However, the blood sample of Yu Jingwei sent for inspection last night did not match this DNA. "

Liu Yongxin was also stunned.

"That is to say, the direction of the investigation is wrong?"

Zhou Ning didn't speak, but bit his lip and pondered. If the murderer followed Chen Zhenya to his house, killed him, and obtained the password of the deceased's house, this would be understandable.

However, the corpse is hidden in the rented house Jingwei, which is not accessible to everyone. At present, only four people can enter. The landlord has the key, and Yu Jingwei has the key and password. The other two are Song Luqing and Song Luqing who borrowed there Wang Yi.

Thinking of Wang Yi, Zhou Ning thought of the fat old lady who said that Wang Yi had a daughter who went to Ganggang Elementary School. He had ignored this detail before, so Zhou Ning raised his head and went straight to Xu Dayuan's office.

Pushing the door open, Zhao Xinli was standing in front of Xu Dayuan, seeing Zhou Ning coming in Xu Dayuan looked over.

"What happened to Xiao Zhou's forensic doctor?"

"Xu Da, let me interrupt you. I have an idea. The aunt who provided the clues once said that Wang Yi has a daughter who goes to Ganggang Primary School. Can we find out about the situation with that child?"

Xu Dayuan looked serious.

"Do you suspect that the deceased had molested the child before?"

Zhou Ning nodded and shook his head while clenching his fists.

"Maybe it's more than that. Auntie Fat said that the girl was lucky. She was discovered in time, so the family didn't investigate further. A father who knows about such a thing will be very broken, and the possibility of revenge is very high."

Xu Dayuan stood up, grabbed his hat and put it on.

"You and Da Zhao are going to school with me, by the way, bring Sister Feng."

Sister Feng is the only female police officer in the team. She is 50 years old and usually handles internal affairs in the team. Whenever there are female suspects or children involved, she usually follows her. After all, it is more convenient.

When everyone went downstairs, Liu Yongxin made a phone call gesture with Zhou Ning at the door of the office. Zhou Ning understood that Liu Yongxin meant to call him if there was news. Zhou Ning nodded and followed everyone.

When the car moved, Xu Dayuan remembered and patted his thigh hard.

"I'm so busy and confused, school is on holiday today, isn't it?"

(End of this chapter)