Chapter 599: The Mystery of the Fire Extinguisher

"Officer, although our robot has a camera, it doesn't go to the stairs, it just walks around the dining area!" The staff explained to Zhao Yu in embarrassment, "It can't take pictures of the place you mentioned! Moreover, it is not only extremely slow, but also has the function of automatically avoiding pedestrians, it is clear that the little boy ran over directly to install the robot! They should lose money!"

What Zhao Yu meant was, of course, that he wanted to retrieve the video of the murderer before he burned the 5 million ransom, to see if the robot had captured anything suspicious.

He felt that since Qian Gua was issued today, and the dungeon adventure brought him here again, it might have something to do with the coin burning incident.

However, according to the staff, the camera-wearing robot could not reach the stairs at all, and the dining area was quite far from the stairs, so it was impossible for the robot to capture anything.

But... Zhao Yu is very familiar with the adventure system. This seemingly ordinary adventure cannot be unreasonable. Shouldn't it be just an ordinary incident of a child bumping into a robot?

However, no matter what, since he met this robot, he must take the video of the robot back today and check it carefully, what if he can find something from it?

At this time, Xiaopangdun's mother saw that Zhao Yu was a policeman, and he was so arrogant. After hearing that the staff wanted her to pay, she didn't dare to say anything, and hurriedly dragged Xiaopangdun away in a desperate manner.

The mother and son, who were almost round, slipped into a narrow corridor in the corridor.

Zhao Yu glanced at them subconsciously. From the signs on the wall, it could be seen that there was an elevator in that corridor besides a bathroom.

tsk tsk...

Zhao Yu recalled that when the murderer burned the money, he himself did not come to this building. However, he knew that Li Luoyun had supervised all the exits of the building at that time! Therefore, this exit with an elevator must have been guarded at that time.

But……

"Officer...Look..." The staff pointed to the robot that was in shock, not knowing what to do next.

"Stop talking nonsense!" Zhao Yu waved his hand and ordered, "Hurry up and give me the robot's monitoring memory card, to assist the police in the investigation, and...if you have other robots here, bring me all the memory cards too. !"

"No... nothing, just this one..."

The staff has not finished explaining,

Zhao Yu didn't pay any attention to him at all, but frowned and walked towards the corridor where the mother and son left.

Why?

Unexpectedly, when he just turned the corner, he suddenly saw a fire extinguisher box!

The red box is placed on the ground on one side of the corridor, and there are two red fire extinguishers inside.

Zhao Yu remembered that when the murderer used homeless people to set fire to the coins, the police officers in charge of surveillance were caught off guard and could only rush to get a fire extinguisher nearby, but after getting it, they found that the fire extinguisher was broken!

He estimated the distance. Although this place is far away, it may be the nearest fire extinguisher box to the entrance of the corridor.

"Hey..." Thinking of this, Zhao Yu quickly waved his hands at the staff and asked, "Do you still remember the day when someone burned money? At that time, did someone come here to get a fire extinguisher and go to put out the fire?"

"What?" The staff frowned, "I...how about asking the security guard, just wait a moment..."

"What are you asking?" At this time, a waiter came out from the nearby restaurant and said directly to Zhao Yu, "You are right, the place where the money is burned is at the stairway, and this is the nearest fire extinguisher box! On the day the money was burned, I All eyes were on, when there was a fire over there, someone passed by with a fire extinguisher! We found out later that the fire extinguisher was completely broken, and I heard that a lot of money was burned!"

Oh, that's how it is……

Hearing what the waiter said, Zhao Yu roughly understood the situation that day. The person the waiter said should be the plainclothes policeman who was on duty at the elevator entrance. After hearing the news of the fire over there, the police officer hurried over to put out the fire with a fire extinguisher, but he didn't expect that all the fire extinguishers were broken.

Later, Li Luoyun investigated this matter and believed that the fire extinguisher should have been tampered with, and the tampered person was undoubtedly an accomplice of the murderer!

However, they later searched the person in charge of the building to investigate the situation. Since there is no camera where the fire extinguisher is placed, they have not found any valuable clues.

The security personnel of the building can confirm that the fire extinguishers are not only full but also new. In addition, through inspection, they can also confirm that the two fire extinguishers have not been replaced by anyone, and they are still the two original ones installed in their building!

Thinking of this, Zhao Yu went into the corridor to check the fire extinguisher box. Needless to say, all the fire extinguishers must have been replaced with new ones.

So... how did the murderer move his hands and feet back then?

Did he pour out the dry powder from the fire extinguisher ahead of time? But...how did it fall?

Why?

Zhao Yu almost unconsciously thought of the bathroom inside, so... Could it be that the murderer came early, turned on the fire extinguisher, and poured all the dry powder into the bathroom?

Thinking of this, he went to the bathroom again. This corridor is not very spacious, and the bathroom is also very small.

Zhao Yu noticed that there was a camera at the elevator entrance on the right. However, he knew that the camera should be disabled! This entire corridor is a surveillance blind spot.

After observing for a while, he went into the men's bathroom again and checked. The facilities in the men's restroom are also very simple, there are no toilets, only two squatting toilets and two urinals.

tsk tsk...

Zhao Yu was not very good at fire extinguishers, but he instinctively felt that the dry powder in the fire extinguisher should not be poured out so easily.

So, he immediately took out his mobile phone, searched briefly on the Internet, and was surprised to find a fact. It turns out that if you want to make the fire extinguisher ineffective, you don't need to pour out the fire extinguishing powder in the fire extinguisher. You only need to use a simple tool to release the pressure in the fire extinguisher, and the fire extinguisher will lose its function!

oh……

Only then did Zhao Yu understand why Li Luoyun and the others gave up on the clue of the fire extinguishers. Since there was no video surveillance in this place, but there were so many people coming and going, it was difficult to find out who moved the two fire extinguishers?

tsk tsk...

Zhao Yu thought about it carefully, and felt more and more that he seemed to be doing a useless effort.

Because, he has seen several professional killers including the man in the windbreaker, and captured two of them alive. Then, the person who touched the fire extinguisher was probably one of these people.

In other words, even if you find out the original story of the fire extinguisher, it's useless!

But……

For some reason, Zhao Yu always had a feeling of unwillingness to give up. First, he believed that the dungeon adventure must have something to point to; second, he always felt that there seemed to be another mystery in this small fire extinguisher.

However, Zhao Yu is running out of time and must rush back to the hospital as soon as possible.

When Zhao Yu left, the staff naturally didn't dare to neglect, and hurriedly handed over the robot's monitoring memory card to Zhao Yu.

After returning to the car, Zhao Yu still didn't give up, so he simply connected the memory card to the tablet and started watching.

In fact, Zhao Yu didn't think too much about it. He almost unconsciously adjusted the video to the moment when the money was being burned, hoping to see if the robot would capture anything when the money was being burned.

In the end, the coincidence that Zhao Yu had been looking forward to, still happened!

But at the same moment when the 5 million people were burned, the robot happened to pass by the corridor where the fire extinguisher was located. From the video, he could even clearly see a scene of a plainclothes policeman rushing to put out the fire with a fire extinguisher.

In order to see it more clearly, Zhao Yu moved the timeline forward again, and then examined it carefully. Unexpectedly, seeing this was terrible, his heart skipped a beat, and his hair exploded!

Oh My God!

how so?

...