While the manhunt is in progress

Chapter 598 Fuzzy Matching
Song He's words made everyone fall into deep thought, and at the same time they began to think about the information behind the remaining photos.

"In the era when criminal investigation technology was relatively backward and the theoretical system was not perfect, it was really difficult to make breakthroughs when analyzing this kind of case from a conventional perspective."

Song He said regretfully again: "At the same time, there was a common saying among suspects in that era, that is, 'Kill to silence, and leave without leaving a clue'. Therefore, even in cases where there is no need to kill, many times criminals will kill to escape punishment. Choose to silence."

"That's true. Most of the unsolved cases back then were like this. Once the victim died, the clues to the case were lost." Qi Weigang nodded heavily, sighed and then focused on the case again:

"Although you said that the victim has the possibility of voluntary cooperation, there are signs of dragging and struggling at the scene, so I think it is unlikely that the victim will voluntarily cooperate."

"The possibility of active cooperation is really small." Song He agreed with Qi Weigang's statement, and at the same time pointed to some traces on the scene and said: "But the traces are in order, and the new traces will cover the old ones."

"The crime scene is more than [-] meters away from the nearby highway, and there are traces of artificial layout and cleaning at the crime scene. At the same time, some of these traces of layout and cleaning were destroyed by traces of struggle, and the time interval between the appearance of these two traces Not more than three hours."

"This shows that the murderer did not receive any interference in the process of bringing the victim to the crime scene and arranging the crime scene."

Zhou Kai pondered: "The victim is in a coma?"

"I don't know." Song He shook his head: "Although thanks to a local old sheep herder, we accidentally discovered this murder case within ten hours after the incident, but correspondingly, many traces at the scene are also was destroyed."

"So I have no way to speculate on the specific situation at that time. I can only confirm that the deceased did not resist before being killed. Instead, there was a violent struggle just before dying."

"And judging from the photos, from the beginning of the struggle to the death of the deceased, there was a process in which the intensity of the struggle gradually increased and then stopped abruptly."

Qi Weigang looked at the photo in the projection, scratched his head and said, "Where did you see it?"

"Look at the broken weeds in these two places." Song He looked at the blank eyes of everyone, and enlarged the two photos to the extreme that the projection could hold: "The weeds under the deceased showed that she had Moved briefly."

"And judging from the position she was in when she was discovered, the struggle at the starting point of the moving position was not severe, but the signs of struggle at the end point were very obvious."

"Therefore, I suspect that she was gradually waking up from a coma, and when she just regained consciousness, she knew what happened to her, so she started to resist."

"However, the murderer probably didn't take suppression measures at the first time, which caused the deceased to have a moving process. It was not until the deceased's struggle gradually increased that he made room to kill the victim."

Qi Weigang's eyes widened, and his eyebrows furrowed tightly: "So how did you see it?"

Song He helplessly continued to enlarge the photos. It was only when the details of the two photos were almost unrecognizable due to pixels that everyone could barely see a clue.

But I saw that the broken weeds in one photo were slightly lighter than those in the other photo. If Song He hadn't specially enlarged the photo and pointed it out clearly, no one would have noticed it at all!

"Holy crap! Are your eyes still full of flesh?" Qi Weigang rubbed his sore eyes.

"Is the vision of a genius beyond your imagination?" Song He snorted disdainfully, and continued, "So from the point of view of traceology, the process of the deceased recovering from consciousness is also a gradual process."

"Then let's look at the scars on the deceased's body. Although she had some scratches and other scars on her body, the cause of her death was suffocation. So, in the absence of blunt force trauma to the head, what caused it?" Where is she unconscious?"

Wu Xuerui blinked, and immediately said: "Drugs!"

"That's right." Song He nodded and said, "Although the family of the deceased did not allow us to conduct an autopsy on the deceased for various reasons, we have no way to clarify the specific ingredients of the drug that caused the deceased to coma."

"But fortunately, our early on-site inspection photos and related clues are enough for us to draw some relevant conclusions."

"There were nine hours between the time the deceased got off work and the time she was killed. The amount of medication used by the murderer would also be different depending on the time she spent in coma during these nine hours."

"But no matter how many drugs were used, being able to prepare drugs that cause people to lose consciousness in advance shows that this is a premeditated crime."

At this time Qi Weigang suddenly said: "Song, after investigation, it is not an acquaintance who committed the crime."

"I know." Song He nodded: "It's not an acquaintance, but it doesn't mean that the person is not familiar with the deceased. I remember that the deceased's work during his lifetime required him to face a large number of complex people every day."

"And her appearance and clothes are indeed quite prominent, which can easily make people like her, but at the same time, it's easy to make people think badly."

"In addition, the public position where the deceased worked would clearly indicate her name when working, so it is relatively easy to obtain the deceased's identity information."

"However, this also gave us an idea, that is, the murderer had gone to the deceased's work unit to handle matters related to the deceased's work before the crime occurred."

"You want to find out from these people?" Qi Weiguang was a little confused: "Although the deceased has been on the job for a relatively short time, there are quite a few people who ask her to handle related affairs. Do you know how much workload it is?"

"I know how much trouble you have caused me." Song He glanced at Qi Weigang, and said to himself, "Isn't there a killer weapon like family genetic comparison?"

"Don't worry, you are in charge of collecting information, I am in charge of screening people, and finally I will give you a list of people who need to be screened."

Qi Weigang instantly understood Song He's plan, and said in disbelief, "You want to screen all the people and sort out everyone's family tree?"

Song He nodded, shrugged and said in relaxed sign language: "No problem. As long as the information you provide is complete, there is no possibility of missing the suspect."

"Song, you are so good at bragging!" Qi Weigang had an expression of disbelief on his face, but his hand started to touch the phone, and he arranged the task of collecting information after a while.

Song He gave Qi Weigang a look of disdain, turned to Wu Xuerui and said, "Xiaoxue, I'm ready to check the household registration information at any time. It is estimated that many people will go up three generations to check."

Then Song He looked at Qi Weigang again, and told him, "During the period when I screened the information, you have to bring someone to profile the suspect. In the future, once the biological information is successfully fuzzy matched, you have to use the profiling results to profile the suspect." The members of the family genealogy are investigating and trying to solve the case as soon as possible."

Qi Weigang nodded in response, and couldn't help feeling a little bit of anticipation in his heart.

A few hours later, Song He helped Qi Weigang find the breakthrough direction of several other cases, and Song He received a large amount of information from Luo Province.

(End of this chapter)