An hour and a half later.
Yu Chen, Yuan Youchong, Zhou Qianxin and Cheng Wei, as well as the three trace inspectors, squatted on the side of the weeds outside the guardrail.
The four forensic interns, who had just arrived, couldn't do much at this time, so they could only work with the two trace examiners to help export and organize the photos and other things they had taken earlier, and annotate them.
After all, there is a lot of overlap between the content of forensic field learning and the work of trace examiners, and if it is not used in the subdivided experimental department, if you want to go out to the field with the field, these contents are things that must be mastered.
At this time, Zhou Qianxin couldn't take care of them, so she threw it to the trace inspector and asked them to help teach them.
Moreover, she didn't quite understand the reason why Yu Chen asked her to call the intern over.
In the last case, there was a lot of paperwork that the interns needed to do and sort out, and it was the time when she was busy, so she received an order from Yu Chen this morning so she didn't take them.
Otherwise, it is necessary to bring it directly together, so why do you have to go back and notify so much.
"There is indeed a little blood in the weeds."
Cheng Wei raised his eyebrows.
Standing outside the guardrail, a little far away, I can't see clearly, but at this moment, I got closer and took a closer look, how could I still see the blood stains hidden in the grass.
Zhou Qianxin also added: "This is a dripping blood stain, but the number is too small. ” "Judging from the blood marks around the accident car, the victim must have been injured in the artery and bled a lot.
Even if he was dead when the suspect took him from here, the blood that had penetrated his clothes would continue to drip down, and there was no reason for it to be just a little blood. ” "Therefore, I speculate that the victim should have been packed up by the murderer in a woven bag and other objects, and then blood seeped out of the woven bag and other items again and fell to the ground."
"Also, judging from the shape of the blood stains, the height of the drop should be less than one meter, and I think the murderer must have put the victim in a sack or other object of similar use, and then carried it forward on his shoulder.
Looking at the bloodstain character, it has been completely coagulated, slightly blackened, and the estimated dripping time is about six to eight minutes. ” "Six to eight bells" Cheng Wei was stunned: "When I checked on the side of the accident car, you didn't say four to six bells, oh yes, I almost forgot, we arrived at the scene for two hours" Yu Chen looked up and said, "The branches of weeds and shrubs are also very fresh, and they have indeed been trampled and broken recently. ” Yuan Youchong immediately asked: "Can you find the whereabouts of the murderer according to these traces?"
"Yes, it's easy."
Yu Chen said: "The murderer is not professional in this aspect, no, and there is no way to deal with these traces left behind, it is easy to find, just follow the search." ” "In this way, in order to avoid damaging the scene, let's look next to the traces.
Well, Lao Cheng, you come with me. ” "Okay."
Cheng Wei bowed.
Yuan Youchong was not very relieved, and said: "Wait, your waist is not good, I'm afraid you can't walk too much and look down to check the traces, it's too difficult for you, it's better to leave it to Lao Cheng."
"Well, yes," Cheng Wei also said: "Looking for these traces, I may not be as professional as you in the team, but this trace is quite obvious, and it is not difficult, I will just take a team of people to go." ” Yu Chen thought about it, didn't recklessly, nodded and said, "It's okay."
However, you also have to pay attention to safety, so I asked Lao Lei to bring another colleague to act with you. ” As he spoke, he turned around and yelled twice at Lei Huailu, who was not far away, and said, "Old Lei, you take someone and look for clues along the traces of this side with Lao Cheng."
Lei Huailu immediately replied that there was no problem, and led people over the guardrail.
"Then let's go back and rest first."
Yuan Youchong said: "I guess, the traffic police have already seen the monitoring once." ” "Hmm."
Yu Chen bowed his head, and together with Yuan Youchong and Zhou Qianxin, returned to the scene and sat in the car to rest.
As soon as he sat down for a while and drank two sips of hot water, he saw Rui Wanzhou running over and said: "Team Yu, Team Yuan, found that the accident car was at 4:24 in the morning, after the monitoring 2.4 kilometers away, the monitoring speed is about 110 kilometers per hour, in other words, if you drive normally, it only takes less than a minute and a half to drive here."
"However, considering that there are no cars at night, most drivers will speed and only slow down when the navigation is reporting the camera, and the time is expected to be shorter."
"In addition, our people have also carefully investigated the brake tire marks on the road, found the traces belonging to the accident car, determined the location of the car's tire puncture and speculated on the driver's treatment after discovering the puncture."
"The method is also a conventional way to deal with accidents in manual transmission cars, which can be said to be decent, hold the steering wheel and downshift at the same time, use the engine brake to slow down the car, and braking the whole distance is about 600 meters."
"Because there were no cars on the road at that time, it could fully meet the conditions of the long distance required for engine braking, and the damage to the vehicle was not serious, that is, at the beginning of the puncture, the body was skewed and scratched against the left guardrail."
Yuan Youchong listened, and after silently calculating for a moment, he said: "In this way, the time when the victim parked his car in the emergency parking zone should be around half past four in the morning, and it is only a few minutes to enter and exit. ” Yu Chen continued: "I estimate that after parking, he should have encountered the gangsters." ” Rui Wanzhou scratched his head, and then said: "We also found that this car was on the highway at the Baishui toll station in Baiyi District, and the monitoring at the toll station showed that there were people sitting in the back seat, and it should be Lou Yuan's wife Lu Xinlan sitting in the back with the child.
The rear seats are quite spacious and good for sleeping."
Yu Chen's face sank: "In this way, sure enough, a family of three was killed" "yes."
Yuan Youchong said: "I speculate that when Lou Yuan parked the car on the side of the road, he should be the only one who got out of the car to check, and then the gangsters came out and wanted to repeat the old trick, and knocked Lou Yuan unconscious with a stick, and the accomplice touched the side of the car and was ready to take away the property." ” "At this time, Lu Xinlan got out of the car and startled the robbers, causing Lou Yuan to find the robbers, and the two sides clashed and fought, as a result, the robbers had weapons in their hands and stabbed to death or the two were stabbed and unconscious, breathing weakly, and the robbers thought they were dead, so they took away the two and their daughters while taking away their belongings."
"There is such a possibility," Rui Wanzhou said, "because, according to general experience, in order to increase the success rate of the robbery, the robbers all pick on the lone person." ” In this way, the driver's family can basically be sure that they have been killed.
Moreover, since there was a fight, there should be traces of considerable value at the scene, or on the victim's body.
"Torture and murder :