"Dad, are you old and confused, you still have to cover up that person!" Akai grabbed Uncle Zhang's shoulder and shook it violently, and there were even tears flashing in his eyes.

"Wife, just tell the truth! I don't believe all the nonsense you just said!" Aunt Zhang also pounced on Uncle Zhang's body and slapped his arm fiercely.

The tall and thin policeman confirmed again: "Zhang Shuren, are you sure you are telling the truth?"

Uncle Zhang nodded, made a heroic appearance, and lifted a pair of withered hands like falling boulders.

A pair of handcuffs were handcuffed.

"Dad!"

Akai called Uncle Zhang and wanted him to tell the truth, but looking at Uncle Zhang's appearance, it was obvious that he had made up his mind, and he had made up his mind about this pot!

"Shuren, my wife, I beg you, just tell the truth!" Aunt Zhang was almost crying and begging Uncle Zhang to retract her confession.

But Uncle Zhang just walked past Aunt Zhang in silence and came to Akai's side.

"Xiao Kai, all our family's savings are stored in the bank card I prepared for you to marry your daughter-in-law, remember to put it away when you go home, don't lose it. ”

"Now that you have saved enough on the card, you can rest assured that you can find a good girl, start a family, and give our old Zhang family an heir. ”

"You must complete this important task, otherwise, you will fail my hard work in vain!"

Uncle Zhang was taken away by the stout policeman, and now there is only one policeman left in the interrogation room.

"The old man is very moral, and I want to hear your opinions. ”

Aunt Zhang was the first to rush forward and said, "Comrade policeman, don't believe what my old man said. ”

"What he went to steal the brake pads, what personal vendetta to Xiao Kai, what mess, it's all lies, it's not true, you must not believe it, he is stupid, stupid enough to take the blame for others!"

Akai also hurriedly stepped forward to defend himself.

"Comrade policeman, my dad is not that kind of person, and even if I said at home that Zhang Xiaowu had a conflict with me and Wenshan, it didn't reach the point of life and death. ”

What's more, how could he, a half-hundred-year-old man, find Zhang Xiaowu's car and get off the brake pads. ”

"The brake pads are so strong on the wheels, he is an old man, it is impossible to do it!"

The tall and thin policeman looked at me and Qin Zhenzhen again.

Akai winked at me, expecting me to say something nice.

Even Aunt Zhang, who has always spoken ill of me, has to bow her head to me for Uncle Zhang's sake at this moment, hoping that I can stand up and help speak.

Although Uncle Zhang was unkind to me first, in my conscience, I can't add fuel to the fire and be unjust to him at this juncture.

I have proven my innocence, and Uncle Zhang is obviously taking the blame for others.

Even if it wasn't all about benevolence, righteousness and morality, in line with the principle of finding out who was behind the scenes, I should also contribute to making Uncle Zhang confess.

"Comrade policeman, I resolutely don't believe what Uncle Zhang said. ”

"If you think about it, when he said those words, it was obvious that he was memorizing a script, like a ruthless recorder. ”

The manuscript is in his mind, and if the task is not completed, he will immediately memorize the manuscript and send himself to the muzzle. ”

"This is to erase the traces of our continued pursuit of the people behind the scenes. ”

"It seems that this matter has been settled with Uncle Zhang, but there is one thing I still have to mention. ”

At this time, everyone's eyes were on me, and this feeling made me feel a little uncomfortable.

"A car with 8 brake pads will not fail or fail to brake because of the lack of a brake pad. ”

"I think we'll have to go back to the vehicle itself to find out. ”

At that time, Zhang Xiaowu drove into Akai's car, and Akai's car was hit by the force of the impact and rolled over and fell off the overpass. ”

Then, according to the action force and reaction force, it can be inferred that after Zhang Xiaowu knocked over Akai, his car was subjected to a huge reaction force. ”

This reaction force did not form enough resistance for Zhang Xiaowu's car to stop on the overpass, but fell down the overpass along the inertia. ”

Among them, Zhang Xiaowu's speed of driving can be imagined. ”

But Zhang Xiaowu thought he could brake but didn't stop the car in the end, which is the problem we have to figure out now. ”

"Anyway, I think that just one brake pad is missing a brake pad that will never cause the brakes to fail. ”

The tall and lanky policeman clapped his hands after listening to my analysis.

He smiled: "I can't imagine that Mr. Jiang, a businessman, has made achievements in solving cases, so what do you think caused the brake failure?"

I frowned, I really didn't understand it.

Just based on the two sentences analyzed by the brother at the barbecue stall earlier, I am afraid that I will not be able to convince the public.

When I was sad and puzzled, Qin Zhenzhen, who had been silent for a long time, suddenly opened her mouth.

"Perhaps, we can check if there is a problem with the brake fluid used in the car that day. ”

What is this professional problem?

To be honest, I have only come into contact with the car, and I only know that the performance of the car will be reduced in all aspects as it ages, and I don't know about those professional studies.

Ah Kai and Aunt Zhang and I stared at each other, stunned and didn't understand what Qin Zhenzhen meant by this.

The brake pads are on the wheels of the car, what is the matter with turning off the brake fluid?

Could it be that who smeared oil on the brake pads, causing excessive lubrication, so that the car could not brake?

The tall and thin cop smiled.

"Miss Qin is really smart, we checked all the brake pads, except for one that was lost, each of the rest was cut off by someone with professional tools. ”

"Although this half will not cause brake failure, it will also affect the braking efficiency to a certain extent. ”

"But it's just an impact, and it won't absolutely cause the car to fall off the bridge deck. ”

"Hearing Miss Qin mention this, I seem to have a new conjecture, but I still want to continue to listen to Miss Qin's opinions. ”

Qin Zhenzhen's delicate red lips were slightly hooked.

"When the brake fluid is mixed, when there is an emergency braking, the mixed oil will be heated and the air will block, and the final result will be brake failure. ”

"It's a matter of common sense when driving, if we find out that Zhang Xiaowu's brake fluid has been mixed with other oils. ”

"Then it is certain that someone must have done something in the dark, because of this kind of life-giving behavior, I believe that a normal person would not do it. ”

"As for who can easily add oil, it depends on the police department to investigate, and whoever is found is the one who tried to murder Jiang Wenshan and cut off Zhang Xiaowu's life!"

Qin Zhenzhen analyzed it well, and said it with a straight tone and full of confidence, as if there was really something wrong with the oil.

In order to intercede for Uncle Zhang, Akai also followed at the end.

"That person is also the one who secretly looked for my dad and tricked my dad into helping him frame Wenshan!"

The tall and thin policeman nodded at Qin Zhenzhen, and then made a phone call, saying that he would ask the people over there to help see if there was a problem with the brake fluid.

Qin Zhenzhen, who was originally not good, suddenly said: "Let's go over and have a look, and maybe, we can find other clues." ”

The tall and thin policeman was slightly stunned, then smiled and nodded, "Come with me." ”

The scrapped vehicle was parked in an open lot behind the police station, and by the time we arrived, there were already a few uniformed men checking the car.

"Team King!"

When the person checking the car saw us coming, they immediately shouted at the tall and thin policeman.

"How's it going, have you found anything?" asked the tall and thin policeman team hurriedly stepped forward.

A mechanic who looked a little professional turned around, and this person turned out to be my old classmate Luo Bing!

However, instead of greeting me, he focused all his attention on Team Wang.

"Team Wang, you better take a look for yourself!"

Our group gathered around, and under the street lamp, the brake fluid showed a strange color.