Jack quickly sent over the processed surveillance video.

The specially processed surveillance video will not be blurred after zooming in, and it is considered clear.

The surveillance failed to capture the whole body of the girl, only a small half of it was captured. The girl walked and played with her mobile phone while walking, and walked to a wooden board.

That piece of wood was laid on the ground during the construction site to prevent scratches on the floor.

At this moment, she froze violently.

The high-voltage electricity instantly stunned her, and a distorted shadow was reflected under the street lamp.

Soon she fell to the ground and died. Only one hand can be seen on the screen. The point source should not be removed, and the scorched hand on the ground is still curled up...

After a while, it was hardly discernible that it was a human hand.

Wade's hairs stood on end: "It's terrible..."

Susie stared at the monitor and asked, "Is it gone?"

Kellen said: "Keep watching."

About five minutes later, another arm appeared on the surveillance screen—the reason why it was only one arm was that the surveillance was not able to fully capture, and only a small half of the scene of the incident was captured.

The monitoring was ignored before, because this part was too far away, too small and too blurry, and blended with the whirling tree shadow. If you didn't look carefully, you would definitely think it was the shadow of the branches.

The man seemed to be frightened, took a few steps back, and sat down on the ground.

But soon the girl's electrocuted arm was dragged out of the screen, and the surveillance video was gone.

Susie was stunned: "I still don't know who he is..."

Kellen clicked on another video: "Keep watching."

This is the monitoring in the mall.

The direction of the monitoring is the direction of the bathroom on the first floor, and going out in this direction is the back door that the netizen said.

The monitoring picture is already in the morning when there are many people.

In the picture, a worker-like man in an orange vest came out with two tool bags. He hurried and left quickly.

Lucy was puzzled: "Nothing unusual!"

Kellen nodded: "Most people don't think there is anything unusual. First, there are maintenance workers in the mall, which is normal. Second, this worker is carrying two bags for tools, which is also normal. Third, a complete corpse cannot fit into two bags, so no one would think that these two bags contained a person. Fourth, the weight of the bag he carried was about the same as the weight of tools. If he was carrying a corpse, it is impossible to go so easily."

Therefore, when checking and monitoring in the early stage, this worker was automatically skipped.

When the video reached about noon, the workers returned to the scene again.

"Look carefully, although the two bags he is carrying this time are bulging, they are very relaxed."

Wade nodded: "It doesn't feel like it has any weight."

Around the end of get off work in the afternoon, the worker appeared again with two bags, this time the bags were heavy.

The monitoring of this screen is over.

Lucy: "So?"

Zion crossed his arms, raised his head from his notes, and said speechlessly, "I usually tell you to read more, but you insist on herding cattle."

Lucy: "??"

She didn't herd cattle!

Kellen said: "When he came out with the bag for the first time, the worker lowered his head and couldn't see the expression, but he could see that he was a little unnatural."

Lucy: "Oh...” It's hard to tell.

Susie nodded: "Yeah."

Lucy doubted: "You really look unnatural?"

Susie pointed at the monitor: "He raised his hand a little bit, as if he wanted to hang it up but didn't dare to, the other hand was holding it, but the fist holding the belt was clenched tightly."

Kellen nodded approvingly, as expected of his daughter.

"There is one last video, the surveillance one kilometer away from the incident site."

Kellen clicked on the last surveillance video.

This is a surveillance video on the side of the road. There are several large sorting trash cans on the side of the road. There are some construction wastes piled up next to the trash cans. Among them is a dark red wooden board of about 50*50cm.

"See this board?” He pointed to the frame, pausing.

Susie nodded: "Yeah!I've been to Michael's construction site before, it's a bit like the wooden boards in the elevator."

Kellen nodded: "This kind of board is very thin, such a small piece, it is easy to be blown away by the wind."

He reversed the video, and the monitor could see the entire street in the direction of the trash can.

The wind was really strong that night, the big trees shook, and several mineral water bottles rolled quickly on the ground.

At this time, a wooden board appeared on the surveillance screen. It flew not as fast as a mineral water bottle, but after a few rolls, it quickly reached the side of the road and got stuck on the road railing.

In the morning, a sanitation worker picked up the board and walked to the trash can. Since the board was a little bigger than the trash can, he put the board next to the trash can.

The video fast-forwards, the shopping mall over the trash can also happens to be renovated by merchants, and a few pieces of foam boards and snakeskin bags are taken out. The construction waste is also piled up next to the trash can.

Then the garbage truck came and took all the garbage away.

Lucy asked again: "So?"

Susie looked at her and sighed like a little adult: "Lucy, your eyesight is bad!"

"When the board was flying just now, there were scorched marks on it!"

Lucy: "So?"

Zion patted her on the head with the notebook: "Go and herd the cows."

Lucy touched her head, what's wrong with her, the board is burnt, what does it have to do with the girl who was shocked by the high-voltage electric shock.

Wade said: "Arc discharge will occur when a high-voltage electric shock is caused, and the high temperature generated by the arc will cause it, as well as the thermal effect of the current. According to Joule's law P=U^2÷R, it is assumed that the voltage is..."

Lucy was speechless. I don't listen, I don't listen!

Kellen: "To put it simply, high-voltage electricity burns people, and when it burns, it will naturally leave burnt marks."

Lucy suddenly realized: "So the scorched marks on this board are the burnt marks left by that girl?"

Kellen nodded approvingly: "This brain can still be saved."

Susie covered her mouth and smirked.

Kellen pauses the video at one frame.

When the sanitation worker picked up the board, the burnt side was facing the outside, and it could be seen that the board was almost burnt through, and there was a thin strip from the center to the outside.

"This is where the arm was burnt."

Lucy: Got it!Creepy!

"That is to say...the girl just stepped on this piece of wood, and then she was electrocuted...then it was burnt, and the wood board was also burnt...then the wood board was blown by the wind to a garbage can one kilometer away, and was collected by the garbage truck..."

Lucy's face was dull, suddenly frightened.

It was only then that Wade realized the reason why she had been calm all this time. It turned out that she was too stupid to understand...

Susie shook her head and asked, "But I don't understand, isn't the wooden board non-conductive?"

Kellen said: "Did she say in her self-report that he stepped on something like a nail?"

The probability of stepping on a nail to conduct electricity is relatively small.

But if you step on the middle of the splicing of two boards, the probability of being electrocuted by high-voltage electric shock is relatively high.

"It is likely to be two closed boards, with nails on the edge of the board... The specific situation depends on the worker at that time."

This board flew a kilometer away and the others should have been dealt with.

There are also several large sorting trash cans beside the flower bed at the scene, which are also in the blind spot of monitoring. It is difficult to determine whether the other board has been thrown away or taken away.

"Now, let's go find this worker."