"It was found out that the brake mark of the large truck was an S trace, which was originally driven in the middle, and it seemed that in order to avoid it, the brake turned from the middle to the right and then to the left, with a total braking length of 34 meters.

As for the police car, the brake marks from far to near are a straight line, the braking length is 11.7 meters, and the residual traces are particularly deep, Zhao Ge deduced that the speed of the two cars is similar, but the big truck seems to be avoiding. ”

Da Zhao pursed his lips and glanced at Zou Jialong.

"This judgment is not accurate, the speed of 60 braking distance is about 14 meters, the reaction distance is 5 meters, then the braking distance is 19 meters, the reaction speed slows down at night, and the second half of 11.7 meters is light, that is to say, the speed of the police car is between 50-60 meters per hour.

The total length of the brakes of the large truck is 34 meters, and there are traces of curve driving, I think the speed of the large truck is about 100 per hour, and the brake in the middle is not stepped on.

I looked at the brake marks, fifty meters away from the road on the east side of the police car, there was a brake mark, very shallow, I can't be sure, whether there is another car at the scene of the accident, because if there is someone overtaking behind the big truck, this speed is not realistic, I analyze that there is a car in the opposite lane, and it is driving in the middle.

And in front of the police car, blocking the view of the police car, the big truck has braked in advance, trying to avoid, although avoiding the car, but the police car following behind is very close, can not avoid again, so it caused a car accident. ”

Zhou Ning squinted, Da Zhao's judgment coincided with the video taken by Wang Weili, and he also felt that when the car accident occurred, there were cars in the distance driving into the distance, but whether it was a big truck or this police car, there was no dash cam, and there was no road monitoring around, which made it difficult to judge.

"Xiaoqu checked, on the branch road that went east from this road, the nearest few intersections were monitored, and all the vehicles that appeared at the time of the incident were checked."

Xiaoqu nodded, he was checking the call records of several people, Zhou Ning's instructions asked him to quickly switch the interface, and began to search for monitoring, after searching for a few minutes, everyone stared at the screen, but looking for a surveillance without image, looking for one is still the same, Xiaoqu is also a little annoyed.

Eventually, the area expanded further afield, and many vehicles were found.

"Chief, nearby monitoring, there is no good use at all, it is estimated that the road is repaired, the traffic lights have been cut off, the south side to the intersection of Kangtai Road and Xicaokuo Village, the north side to the center of the ecological park road, the south side has passed the branch of the Xiaoyang River, and there is monitoring on Nankang Road.

But there are a lot of vehicles passing through these monitoring intersections, I just roughly calculated, there are a total of 34 large and small vehicles during the time period of the incident, how to check, is it 34 vehicles are checked? ”

Zhou Ning nodded.

"Check it all, and the information of these cars will be found out."

Xiao Qu looked constipated, Da Zhao slapped him and gave him a look, don't do it at this time, after all, Zhou Ning is also in a hurry.

"Zhou Xiaozhou, let's go, find a trailer here to get both cars back, the body of the big truck driver, Zhang Qiangmin They should have started the autopsy, let's take a look, or go to the hospital."

Zhou Ning thought for a moment and waved his hand.

"Go to the hospital first, there is no vehicle record, you have to listen to what they say, the autopsy of the driver of the big truck, let them get it first, no matter what, the big truck can't run if it is speeding."

The traffic policeman nodded.

"We also feel that the big truck is speeding and fatigue driving, after all, this point in time is the most tired time for people."

Zhou Ning smiled at Wang Weili and nodded.

"Thank you, if you think of anything else, feel free to call us, and then if we find some special scent, we will find you to identify it."

"No problem, then I'll go home first."

Wang Weili rode away on a tricycle, turned down a dirt road next to the accident scene, and drove straight to the direction of the village, Zhou Ning glanced at it, and indeed from that position, he could not see the situation on the road on the east side of the cart, and the cart had blocked the view.

Everyone got into the car, there was no other nonsense, Xiaoqu had been busy, and only when he passed through the tunnel did he stop, and Zhou Ning didn't ask much.

Just as the car was about to arrive at the central hospital, Xiaoqu shouted:

"I have compared the call records of the head, Xu Qingquan's call records within three days, a total of four, but there are seven, most of them are colleagues of the orchestra, and his eldest sister Xu Qingshu had a call at 7:01 on September 1, and only two calls with his girlfriend Zhong Xiaoyan.

One was more than four o'clock in the afternoon on August 30, and the call lasted less than two minutes, followed by 13:33 at noon on September 1, I took a look, this time should be the time period after Li Li fell from the building, Zhong Xiaoyan called Xu Qingquan, and the call lasted for 8 minutes. ”

The call with Xu Qingshu was to pick him up and send him to the station, and Zhong Xiaoyan saw someone driving out of the wall and falling from the building, and most people were frightened and called their fiancés to seek comfort, which is normal.

It's just that this Zhong Xiaoyan probably didn't know that there was such a relationship between the person who had the accident and her fiancé and the quasi-eldest sister, and Xu Qingquan at that time didn't know that it was Li Li who had the accident.

To Zhou Ning's surprise, there was no Li Li in this call record.

"Look ahead, there is no telephone contact between Li Li and Xu Qingquan, are they in contact?"

"Wait a minute, Li Li's WeChat account was first searched for one, but this is to contact all the students' parents, that is, for office use, after Kong Wanshan appeared, I found another WeChat account, and this number was contacted by Kong Wanshan himself.

Boss, don't do it, I'll talk about the key right away, through Xu Qingquan's WeChat, I found out that the previous two WeChat accounts were registered with her real-name mobile phone, and the other number was not real-named.

This registered WeChat account has been in contact with Xu Qingquan, the two of them don't say much, and there are no ambiguous pictures, text and voice, just time, question marks, numbers, numbers are the kind with addition and subtraction symbols, I didn't understand it for a while. ”

Da Zhao came over.

"What addition and subtraction said I'll crack it for you, I'll tell you such a joke, I know a lot."

Xiaoqu didn't dare to delay, found the chat history, pointed to some of them and said:

"What does it mean to have a question mark on three minus eight?"

Da Zhao paused, raised his hand and touched Xiaoqu's forehead, and Peng Shinian also came over and said.

"What do you mean, I don't understand, can you tell me carefully?"

Da Zhao sighed and looked at the two of them with distressed eyes.

"Cultural people, just go to learn culture, Zhu Xingxing covered his ears, come and let me tell you what it means, of course you don't understand Chinese characters, this has to be represented by numbers, and get closer between three and minus, do you see if it looks like a male organ looking down 3-.

As for 8, it's a pictogram here, so I don't need to explain it, right? Connected, plus this question mark, and this specific time, an analysis is actually a question sentence, is it a question tonight? Look at what Li Li replied, 'W! That's a little later.

So these seemingly messy contents, in fact, are the time for the two to date, according to the above content, the two meet at least three times a week, and they are all after 11 o'clock in the evening, the good guy is diligent enough, and the connection with his fiancée is closer. ”

Zhou Ning glanced up at Da Zhao, Da Zhao quickly shut up, he knew that he had talked too much, Zhou Ning flipped up, didn't see the beginning time, and then asked:

"When did these two start contacting?"

"I added such a friend when I registered in November 2012, and it seems that by this time, they already knew each other."

"Did Xu Qingshu say yesterday that when did Xu Qingquan decide to marry his girlfriend and establish a fiancée relationship?"

Da Zhao thought for a moment.

"It seems to have said that the two were going to get married in October last year, and then bought this house in November, my god is because Li Li bought this house, or did I buy this house, and the two only met, so didn't they hook up before they moved over?"

Zhou Ning sighed, the information he got now is not accurate, and it seems that he has to check it one by one.

"One is dead, the other is not out of danger now, go to the hospital to take a look, get the key to Xu Qingquan's house, let's go to their house to take a look, after all, the pillow that the deceased Li Li held in the morning appeared in Xu Qingquan's suitcase, although it was not the last person I saw before he died, but the two have a surname relationship and a motive."

Saying that, the car flickered, Zhou Ning glanced out the window, and at this time he had arrived in the courtyard of the central hospital, Zhou Ning looked inside the car, and couldn't let everyone get out of the car.

"Da Zhao come with me, you wait in the car, it's too oppressive to go together."

Peng Shinian raised his hand and stood up directly.

"Can I follow along? I want to collect the residue of Xu Qingquan's sole, I don't want to go to Xu Qingquan's house for a while, the deceased's house is also downstairs, I want to collect the dust of the two rooms, this can also be compared, the microcosm of biology. ”

Several people looked at Peng Shinian, Zhou Ning nodded, waved his hand and said:

"Then let's go together, just don't take the sample from the sample."

Jumping out of the car, Da Zhao poked Peng Shinian's arm with a curious expression.

"Tell me, what is the microcosm of living things, and what do you want to compare?"

"For example, the dust contains things, dust mites are a kind of thing, the two of them often play poker and roll the sheets, dust mites must communicate with each other, there are 34 kinds of this thing, who has been there, whether there is a residue on the body, these can have traces, and they can also be more mature and so on."

Da Zhao looked surprised, looked at Peng Shinian up and down, his eyes fell between his legs, Peng Shinian took a step back vigilantly, covered his crotch, tilted his head and looked at Da Zhao suspiciously.

"Zhao Jianjian, your eyes are weird and scary, what are you staring at me here, you don't have a girlfriend, don't tell me that you have a problem with your orientation."

Da Zhao glanced at him and laughed out loud.

"It's okay, I'm just surprised, your Chinese level is changing with each passing day, and now you know what it means to play poker."

In the attack of tenosynovitis, the claws hurt! Thank you to your favorite uncle for the tip!

(End of chapter)