novice forensic medicine

Chapter 70 Robbery VS Vendetta
Zhou Ning raised his hand and pointed to the hand-drawn drawing on the slide.

"Leader, don't worry. Look at this picture. The deceased was found in the master bedroom. Although all the cabinet doors in the kitchen and second bedroom were open, there were still a lot of unpacked things. The living room also smashed everything on purpose.

According to the analysis of criminal psychology, once the murderer wants to destroy the evidence at the scene, it means that he wants to hide some information, which may have nothing to do with the scene, and the valuables still exist at the scene, and the caller still hears the sound.

Based on the available evidence, my judgment is:
There were one or two murderers, one suspected to be a woman or a thin man, right-handed, an acquaintance who committed the crime and wore gloves when committing the crime.

The intimidation started between 7:30 and 9:30 in the morning. The time of death of the deceased was close to the time of calling the police. The murderer had hatred for Wen Haicheng. I think it was a vendetta case disguised as robbery. "

"Gone?"

Zhou Ning nodded.

"The comparison of the fingerprints on the murder weapon, in addition to the two glove fingerprints, six complete fingerprints and seven incomplete fingerprints were found on this one, including the deceased and the deceased's wife, and two incomplete fingerprints, which are not in the fingerprint database. Found it, but the fingerprint was covered in latex paint, I think it was left by the previous worker.

There is only so much information available now, and the inspection report needs to come out early tomorrow morning. As for the footprints and movement trajectories, we will compare them in detail when we go back. The workload is very heavy, and it can be completed tomorrow at the earliest.

However, in order to draw a better moving line diagram, I need the shoe prints and fingerprints of the caller, Zhang Xin, the deceased’s son and mother. In addition, the deceased’s laptop is here, and the deceased’s QQ number is logged on it.

You can ask the technical department to check. I remember that there is a management of the associated number. The mobile phone was smashed. This is to hope that the information in the mobile phone will not be leaked. The person who smashed the mobile phone may not know that even if the mobile phone is smashed, the information inside can be obtained. , Of course, it may be too late to deal with it. "

Xu Dayuan looked at Liu Yongxin.

"Forensic Liu, is this the opinion given by your forensic office?"

Zhou Ning looked at Liu Yongxin worriedly. He wrote these summaries in the car and did not communicate with Liu Yongxin. Liu Yongxin just took a look.

"Xiao Zhou's opinion is my opinion. Let the technical department take a look at the computer first, and maybe there will be some discoveries."

Director Sun beside Xu Dayuan smiled, took out his mobile phone, dialed a number, gave some instructions, and then hung up the phone.

"People from the technical department will come over in a while. Let them restore the computer and two mobile phones. You can send someone to connect them."

Xu Dayuan nodded and looked at Da Zhao.

"Zhao Xinli is in charge of the matchmaking. After the special case meeting is completed, the special meeting will be held here. He Chunyang will lead a team to continue investigating the social relationship between Wen Haicheng and Zhang Xin. In particular, their design institute is the focus. After the fingerprints and footprints are collected, they should be sent to the forensic room as soon as possible.

Liu Changhai took someone to the kindergarten of the deceased’s child, checked the monitoring, asked the teacher, what time did Zhang Xin drop off the child, and when he left, and checked the time with the gatekeeper of the community. Tomorrow, at ten o’clock, all the information will be collected, and the meeting will end ! "

With an order, everyone left. Zhou Ning stood up and was about to leave when Xu Dayuan coughed and waved his hand towards Zhou Ning.

"Director Sun has something to ask you."

Zhou Ning stopped his movements and handed the autopsy report to Liu Yongxin, who gave him a comforting look.

"Xiao Zhou, I heard from Xu Dayuan that the software project you did with Qindao University is progressing smoothly, right?"

Zhou Ning nodded. In fact, he hadn't been to Qindao University these days. He just communicated with Dr. Lu. In addition to the software development work, it seemed that experts were hired from medical schools and famous universities to prepare for the establishment of a forensic medicine department. Colleges, and not just undergraduates, seem to start enrolling students for masters and doctorates directly.

"Now the first basic data collection has been completed, and the programming of AI technology is being carried out. After completing this step, the second data collection can be started. Here, AI technology can independently record relevant data, analyze and enter, and fill in the database content. .”

Zhou Ning spoke quite well, after all, he didn't know what Bureau Sun meant by asking such a question.

Bureau Sun nodded, with a smile on his face.

"Very good, I didn't expect that our Qidong branch can produce such talents, but your job is also very busy, the burden on young people's shoulders is not light, you have to take it seriously, by the way, I heard that you want to transfer to The forensic room of the Municipal Bureau?"

Zhou Ning was taken aback for a moment, his face full of doubts.

"I haven't heard of it, when did it happen?"

Xu Dayuan raised his head and laughed, and leaned in front of Mr. Sun.

"Why did the leader worry too much? I said you were thinking too much. I picked this kid myself. If he has any plans, why didn't he tell me? Please help us coordinate the technical department. Don't worry about that."

Director Sun coughed twice, then gave Xu Dayuan a look.

"Don't be too polite when ordering the leader. It's good to know that your team is not distracted. Lao Liu will retire immediately. If Xiao Zhou leaves, isn't it going to be an empty city plan?"

Xu Dayuan waved his hand.

"Think too much, oh whoever said that you have to go to the Municipal Bureau to do scientific research, Xiao Zhou has been working for half a year, I know this kid very well, he is a worker.

Intriguingly, he won't do it. In his eyes, engaging in scientific research is a matter of walking around and beating rabbits. If he really wants to do this, why bother to go to the Municipal Bureau? Wouldn't it be better to go to Qindao University?
Besides, the leader wants to keep people, just say it so red-mouthed and white-toothed, there is no reality at all, it looks like there is no sincerity, if you really want to keep people, then apply for the salary issue, this is the real benefit. "

Director Sun was stunned for a moment, he didn't expect Xu Dayuan to ask for such treatment, he thought for a moment and nodded vigorously.

"You are right. If we want to retain people, we must also have a mechanism. I will report to the leader when I go back. The salary cannot be changed, but the specific post allowance can be adjusted appropriately."

Zhou Ning pursed his lips tightly and didn't know what to say for a while. It seemed that the matter discussed by the two leaders had something to do with him, but it didn't have much to do with him. But if he could pay more, who would object to that? Just listen honestly. it is good.

Director Sun stood up, raised his hand and patted Zhou Ning on the shoulder.

"Okay, I'm here to interrupt the progress of your investigation. You are busy with me to coordinate other things. It's still the biggest case in the world. Don't let me lose the chain in the critical place. I will have a hard time going to the city bureau. "

With a smile on his face, Xu Dayuan also stood up and sent Bureau Sun out the door. Seeing that people had left, Xu Dayuan rubbed his cheeks.

"Okay, let's get busy."

"Thank you Da Xu."

Xu Dayuan waved his hand.

"So much nonsense, by the way, that Zhang Xin is still awake?"

As soon as he said this, Zhou Ning stopped in his tracks.

"Before the autopsy, I went to the emergency department first. Her vital signs were fine. The director of the emergency department said that she should be able to wake up, but there was no response. I checked her injuries, except for those cuts, stab wounds, and blow injuries. In addition, there is a fist-sized bruise on Zhang Xin's abdomen, which has begun to dissipate, which should have been caused two or three days ago."

Xu Dayuan was taken aback.

"You didn't say just now, did you suspect that the deceased had domestically abused Zhang Xin?"

Zhou Ning shook his head.

"I'm not sure whether it was caused by the deceased. I just stated the time when the bruise occurred. I will compare it later. However, the investigation has made me feel more and more confused. After all, there are many evidences that cannot be explained. The place."

Xu Dayuan patted Zhou Ning on the shoulder, he could no longer be satisfied with such a subordinate.

"Don't be so sad. I remember you said that any contact will leave traces. If you don't find it, it doesn't mean there are no traces. Let's look for it slowly."

Zhou Ning smiled.

"Then I'm going to be busy with the leader."

Xu Dayuan waved his hand, and Zhou Ning returned to the forensic room. As soon as he entered the door, he saw Da Zhao leading two people sitting opposite Zhou Ning, tinkering with the computer. No need to ask, this is the person sent by the technical department to support.

Liu Yongxin looked at Zhou Ning, Zhou Ning hurried over, and briefly said the attitude that Sun Ju had just shown, Liu Yongxin frowned slightly.

"Where there is no wind, there is no wave. This is what someone in the branch knows. But I remember you said that when you went to Qindao University to hold a press conference, you met people from the city bureau. It seemed that there was still a lot of trouble?"

Zhou Ning nodded. In fact, this is what he is most worried about. With Master here, even if Master retires, he can still get advice by calling.

If he really went to the Municipal Bureau, he really couldn't fit in with the two people he met at Qindao University that day, at least he couldn't lick people, he just wanted to work hard, after all, he found evidence and helped solve the case. The feeling is indescribable.

"I don't know them, they just regard me as a student. At first, they bumped into my bag and hated me for blocking the way. They just thought that I looked like a student. After the impression was made, I still feel comfortable here."

Liu Yongxin smiled.

"Hey, my apprentice is just following me. Hurry up and compare, print out all the on-site photos, compare the footprints of the port police station first, circle them with a marker pen, and send the rest one by one for comparison."

Right here, Da Zhao snorted.

"Hey, why did you hide a QQ number?"

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(End of this chapter)