"Officer, although our robot has a camera, it doesn't go to the staircase, it just goes back and forth in the dining area!" The staff explained to Zhao Yu in embarrassment, "I can't shoot the place you said at all!" Moreover, it is not only very slow, but also has the function of automatically avoiding pedestrians, it is clear that the little boy ran directly over and installed the robot!

Zhao Yu's meaning is naturally to retrieve the video before the murderer burned the 5 million ransom to see if the robot has captured any suspicious situations.

He felt that since the Qiangua had been opened today, and the dungeon adventure had led him here, it was likely to be related to the coin burning incident.

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

But...... Zhao Yu knows the adventure system very well, this seemingly ordinary adventure can't be unreasonable, shouldn't it be just an ordinary incident of a child hitting a robot?

However, anyway, since he has encountered this robot, he must bring back the video of the robot today, check it carefully, and find something inside.

At this time, Xiao Chubby Dun's mother saw that Zhao Yu was a policeman, and she was so arrogant, and then heard that the staff asked her to pay money, she didn't dare to say more, and quickly pulled Xiao Chubby Dun and left.

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

Zhao Yu subconsciously glanced at them, and it could be seen from the signs on the wall that in addition to a toilet, there was also an elevator in that corridor.

Gee......

Zhao Yu thought back for a moment that when the murderer burned money, he himself did not come to this mansion. However, he knew that Li Luoyun had controlled all the exits of the building at that time! Therefore, this exit with an elevator must have been guarded by someone at that time.

But......

"Officer...... Look ......" the staff member pointed to the robot that had gone into shock, not knowing what to do next.

"Less 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 any other robots here, bring me all the memory cards!"

"I didn't ...... No, that's it......"

Before the staff could finish explaining, Zhao Yu didn't pay attention to him at all, but frowned while walking towards the corridor where the mother and son left.

Ay?

Who knows, when he just turned the corner, he saw something - a fire extinguisher box!

A red box is placed on the ground on one side of the hallway, and inside are two red fire extinguishers.

Zhao Yu remembered that when the murderer used the homeless man fire to burn coins, the police officers in charge of monitoring were caught off guard at all, so they could only hurry to the vicinity to get the fire extinguisher, but after getting it, they found that the fire extinguisher was broken!

He estimated the distance, and although this place was far away, it was probably the closest fire extinguisher box to the entrance of the building.

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

"What?" the staff member frowned, "I...... If I don't ask the security guard, you can wait a minute......"

"What are you asking?" At this time, a waiter from the restaurant next to him came out and said directly to Zhao Yu, "You are right, the place to burn money is at the staircase, and here is the nearest fire extinguisher box! On the day of burning money, I looked all over there, and as soon as there was a fire, there was a person here carrying a fire extinguisher! Later, we learned that the fire extinguisher was completely broken, and I heard that a lot of money was burned!"

Oh...... That's right......

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

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

However, they later checked with the person in charge of the building to investigate the situation, but they never found any valuable clues because there were no cameras where the fire extinguishers were placed.

The building's security personnel can confirm that the fire extinguishers are not only full, but also new, and in addition, through inspection, they also confirm that the two fire extinguishers have not been replaced, and they are still the two that were originally placed in their building!

Thinking of this, Zhao Yu entered the corridor and came to the fire extinguisher box to check, needless to say, the current fire extinguishers must have all been replaced with new ones.

So...... How did the original murderer move?

Did he dump the dry powder from the fire extinguisher in advance......? How do you pour it out?

Ay?

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

Thinking of this, he walked to the bathroom again. This corridor is not very spacey and the restrooms are very mini.

Zhao Yu noticed that there was a camera on the elevator on the right. However, he knew that the camera should be ineffective! The whole corridor was a blind spot.

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

Gee......

Zhao Yu is not very good at fire extinguishers, but he instinctively feels that the dry powder in the fire extinguisher should not be so easy to pounce.

So, he immediately took out his mobile phone and did a simple search from the Internet, only to be surprised to find a fact. It turns out that if you want the fire extinguisher not to work, you don't need to laboriously 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 effect!

Oh......

Zhao Yu then understood, why Li Luoyun gave up the clue of the fire extinguisher, because there is no video surveillance in this place, but there are a lot of people coming and going, so it is difficult to find out, who touched the two fire extinguishers?

Gee......

Zhao Yu pondered carefully, and felt more and more that he seemed to be doing a useless work.

Because, he has now seen several professional killers such as the man in the trench coat, and he has also captured two alive. Then, the person who touched this fire extinguisher is likely to be one of these people.

In other words, even if you find out the original origin of the fire extinguisher, it is useless!

But......

I don't know why, Zhao Yu always has a feeling of not giving up, first, he thinks that the adventure of the copy must have a point, and second, he always feels that there seems to be another mystery in this small fire extinguisher.

However, now Zhao Yu is pressed for time and must rush back to the hospital as soon as possible.

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

After returning to the car, Zhao Yu was still a little reluctant, so he simply connected the memory card to the tablet and looked at it.

Actually, Zhao Yu didn't think too much, he almost unconsciously adjusted the video to the moment when he burned money, wanting to see if the robot would catch something when he burned money.

As a result, the coincidence that Zhao Yu had been looking forward to still happened!

But at the same moment when the 5 million were burned, the robot happened to pass by the corridor where the fire extinguisher was located, and from the video, he could even clearly see the footage of a plainclothes police officer rushing to fight the fire with a fire extinguisher.

In order to see more clearly, Zhao Yu moved the timeline forward again, and then looked at it carefully. Who knows, this look is terrible, he couldn't help but chuckle in his heart, and his hair exploded!

Oh, my God!

How could it be...... Such?