novice forensic medicine

Chapter 146 Found it

Sun Gaotie went to submit for inspection, and Xia Momo entered the fingerprints collected by Zhou Ning one by one.

Then start further comparison, this speed is quite fast, as an interface opens, all kinds of fingerprints are displayed on the big screen, and there are comparison results corresponding to the four cars.

"In Zhang Guanglei's Sonata car, the fingerprints of Wang Wenjing and Wang Mengmeng were found, but they were all incomplete and covered by his own fingerprints. Obviously, they were left for a long time. After all, his car was the most damaged, and the parts that can be extracted are limited.

As for the interior of Sun Manqing's Wrangler, there are more fingerprints. There are fingerprints of Yu Meili, Chai Ruhua, Chai Fu, and Sun Yannian. The fingerprints in the Honda car include Sun Yannian and Wang Mengmeng.

In the end, the fingerprints of Wang Wenjing and Wang Mengmeng were found on Chen Chunxi's Santana, as well as many unknown fingerprints. "

Liu Yongxin rubbed his chin and sighed.

"The relationship is complicated enough, but according to the results of the current investigation, Wang Mengmeng and that Sun Yannian are highly suspected. Even if they are not the murderer, they are also participants. Xu Da didn't say anything, how is the investigation of this Sun Yannian going?"

Zhou Ning shook his head, just now he went to listen to Chen Chunxi's inquiry directly, and went to see the car, but he didn't ask about it.

"I didn't ask, I guess someone was sent to investigate. There are so many existing conditions. We still need to dig deeper for clues. There is a Dalong element in the deceased's body, but this was not found in the homes of these suspects.

And he has been poisoned for a long time. Since last year, he has coughed up blood and vomited blood, which shows that he has been exposed to this substance and poisoned very slowly, so I just suspect that I am sick. After a while, Da Zhao will contact Xu Da and let him Send someone to take you to the deceased Zhang Guanglei's house to check. Of course, Sun Manqing's house is also going to check. "

Da Zhao nodded, and dialed Xu Dayuan's phone number, but the other party readily agreed, after all, he took the initiative to participate, and no one would shirk him, so he asked Da Zhao to go downstairs and wait, and Bai Ruixin would follow him in a while.

Zhou Ning looked at Sun Gaotie and waved at him.

"You take the investigation box and go with Zhao Henjian. In addition, Da Zhao asked Director Pang to ask him to transfer two Henjian to go with you. We have a small number of people. This case is also a cooperation between our two teams. Naturally Send someone too."

Da Zhao dragged Sun Gaotie away, and Liu Yongxin looked at Zhou Ning.

"Do you want to check that accident car again?"

Zhou Ning nodded.

"There is no clue, it means that our search is not good. Master said that any contact will leave traces. There must be something that we ignore. The murderer caused the car accident. Naturally, he hoped that the car would crash or even explode. When we arrived at the scene, but I smelled a strong smell of gasoline, which can destroy everything, but there was no explosion at the scene, and the fingerprints that could be extracted from the vehicle were very limited, so I want to take another look."

Liu Yongxin paused, then waved to Momo Xia.

"Don't worry, Mr. Xia, put that animation aside, it's the one where you simulated the damage sequence of a car crash."

Xia Momo found the animation, clicked to play, and Liu Yongxin kept waving.

"Slow down, play at the slowest speed."

Xia Momo adjusted the animation to the original state, and then clicked to slow down at eight times the speed.

The car drove straight towards the light pole from the rightmost lane of Lijiang West Road. Seeing this, Zhou Ning had doubts in his heart, so Liu Yongxin directly called to stop.

"stop!"

Then he looked at Zhou Ning and saw that Zhou Ning was lost in thought. He looked at Zhou Ning with a smile without saying a word, obviously hoping that Zhou Ning would express his doubts.

"The deceased Zhang Guanglei had been poisoned for some time. His various organs were damaged, his stomach bleeds and atrophied, and hemorrhages and ulcers in the gastrointestinal tract formed mucus accumulation. According to the test results, it was not a sign of acute poisoning, and his head was also injured. hit.

Under such circumstances, how can the vehicle be controlled to quickly crash towards the light pole?For such a collision and vehicle damage, I think Mr. Xia has already estimated his speed, right? "

Momo Xia nodded.

"The minimum speed of the vehicle must be forty, but it will not exceed fifty. If it is this speed, coupled with the continuous impact from the rear, the folding of the cab will be more serious, and it is more prone to rollover. With three impacts, more people died."

Liu Yongxin snapped his fingers aside, obviously he had thought of this just now.

"Okay, now here comes the problem. The deceased was hit hard at the temporal part behind the ear. According to the autopsy, the injury has already damaged the brain and caused coma. You said during the autopsy that perhaps the deceased's legs were fixed here. , kept stepping on the gas pedal.

I don't rule out this doubt, but I think that fixing the deceased's legs will at least leave strangulation marks or something else, but we didn't find it. "

Zhou Ning nodded.

"Then let's go look at the accident vehicle."

The three of them went downstairs and went directly to the garage that the laboratory requisitioned. The car that had been cut open was suspended inside. The three of them began to observe carefully.

Liu Yongxin tapped lightly on the driver's door with the brush in his hand, and there was a rattling sound from inside.

"At the time of the car accident, the window glass was retracted, so there was not too much glass puncture on the left side of the deceased when the car accident happened."

This discovery gave Zhou Ning a pause. If the window is not closed, it can be operated in this position. Perhaps the blow injury was also caused at this time. If the leg is not fixed, if it is supported, it is also possible to fly out of the car after the impact. It is possible, of course, the biggest possibility is being squeezed in the driving seat.

Zhou Ning squatted down, and the brake and accelerator had been squeezed upside down in the small space in front of him. They had been sampled here before. Zhou Ning rubbed his gloves with both hands, and reached out to touch the accelerator pedal. The deformed pedal, a little force, It fell with a snap.

Zhou Ning picked it up and looked carefully, and seemed to see a scratch on it.

"Master has scratches!"

Liu Yongxin quickly pinched the magnifying glass to look at it, and said to Zhou Ning:
"Hurry up and get the luminol reagent, why do I look like blood?"

Zhou Ning didn't delay, and quickly took the luminol reagent and sprayed it on the pedal, and then took the scratched position, fluorescence appeared, Zhou Ning was overjoyed, and quickly grabbed a physical evidence bag.

Liu Yongxin threw the pedal inside, and then looked to where he found the pedal.

"Keep looking. The tool Xiaoqu borrowed from Qin Da yesterday has restored the squeezed state of the car. See if you can find something else. The height of the pedal is not so easy to throw if it is fixed with something. out."

This idea coincides with Zhou Ning.

Zhou Ning simply knelt on the ground, poked his head into the stretched gap, held a bright flashlight, and observed carefully. When he was looking at the bottom of the dashboard, a hammer head appeared in the gap.

"There was what appeared to be a hammer head, but it was completely squeezed into the crevice."

Momo Xia leaned over and looked at the machine next to her.

"I didn't expect that there was a hammer wrapped in the center of the squeeze. On the X-ray, only the twisted engine could be seen, but no hammer was found. There are hydraulic clamps here. We can try to break open the instrument panel and take the hammer out from above. come out."

Zhou Ning nodded, and went to fetch the hydraulic tongs. Xia Momo thoughtfully searched for how to use the hydraulic tongs, and distributed a goggle to each of them. After a while of research, Zhou Ning held the hydraulic tongs and turned his head Inserting the broken part above, with bursts of sound, the instrument panel clicked, and there were cracks everywhere.

Liu Yongxin quickly waved his hand.

"Stop, stop, don't do it, this guy is too big, it's broken everywhere, it's safe to find a crowbar."

After searching, among the tools left by Xiaoqu, I found a crowbar. I inserted it and broke it towards the outside. The entire dashboard was shattered. Liu Yongxin had already stepped on the chair and leaned his body in.

"Pull me quickly."

Zhou Ning hugged Liu Yongxin's waist and pulled back hard, and the two fell directly.

"Ouch, my old waist!"

Zhou Ning was taken aback. After all, Master had broken his leg, was injured by an explosion, and had a heart stent, so he hurriedly checked Liu Yongxin's condition.

"What about Master?"

"I can't die, but you are dry and thin, why are you so energetic, it's okay, take it out."

Only then did Zhou Ning realize that although Liu Yongxin had fallen, he was holding a broken claw hammer in his hand.

Seeing this, Zhou Ning's excited heartbeat accelerated, and he carefully packed it in an evidence bag.

"Master, let's take a rest first. I'll go up and get the fingerprints, and then send them to the laboratory to see if I can find any blood stains, and compare them with the injured skull of the deceased."

Liu Yongxin also smiled, leaning on his waist, pointing to the bag on the pedal.

"Take this and go up together. It seems that a claw hammer is pinned in the gap between the gas pedal and the side under the dashboard. But this car with automatic transmission, I don't know, can it start like this?"

Zhou Ning nodded.

"This is a car with automatic transmission. The car will not rush out just by pressing the accelerator. You have to step on the brake. The window of the driver's seat is open. As long as someone presses the brake with a long pole and adjusts the direction, release it." brake, the car rushed out, and if the fingerprints can be found, the murderer will also surface."

Liu Yongxin shook his head.

Zhou Ning looked at Liu Yongxin with some puzzlement. Could it be that he disagreed with his point of view?

"Let's look for it first. I think the murderer can design such a car accident to confuse everyone. He won't leave his fingerprints behind. Wait for you to catch him, right?"

(End of this chapter)