It is true that the area in the blind corner of the monitor is amazingly narrow, and Lu Yuan also marked that area with a marker in advance in order to complete what the real murderer in the surveillance screen did.

That is, disappear from the picture.

As for why Lin Bayi was able to come and go freely in that office building, knew the internal situation well, and even gained control of the internal system, I will explain this in detail later.

In other words, if he wanted the monitor not to record his appearance, he had to conduct multiple drills in that corridor to accurately find the blind spot that night.

The office where the fat old man is located happens to be in an office building, and Lin Bayi wants to use the excuse of talking about Song Shuai and Lin Xiaoxue's family affairs, and he can go in and out of the corridor a few more times, so that the effect of practice can be achieved, and it will definitely not arouse the suspicion of others.

This seems to be a flawless plan, but there is a fatal problem hidden in it, and it is the first major mistake he made in this case!

Looking at Lin Bayi's slightly surprised expression in front of him, I guess he should have also noticed where his mistake was.

I estimate that before this, all of Lin Bayi's attempts were completed during the day, after all, the door of the security room was closed late at night, and he couldn't check the effect of his completion.

I asked Lu Yuan in front of me to zoom in on the frame that I had paused beforehand, adjusted the position of the screen left and right, and finally adjusted the area in the upper right corner to the middle of the screen.

"This is the sign of the escape route!" Liu Hao on the side followed closely and said.

That's right! At the corners of each floor of the office building, fluorescent plastic panels are used to create signs for emergency escape routes.

However, what he didn't expect was that the lighting situation in the corridor during the day was completely different from that at night, and if he only entered and exited the corridor during the day, he might not notice a special situation.

That is, the fluorescent plastic plate will only emit a pale green glow when there is not enough light, as a reminder to pay more attention.

The plastic plate was originally translucent, and with the green fluorescence, it invisibly achieved the effect of mirror reflection, which happened to reflect the real situation in the corridor at that time.

After I mentioned this, when everyone looked at the enlarged surveillance screen on the screen, they found two blurry figures on the fluorescent plastic plate. One of them is vaguely Chang Qingshan's appearance, and the other is the person who was talking to Chang Qingshan in the corridor at that time!

"However, this figure is so blurry, how can you prove the figure on the plastic plate."

"Of course you can prove it!"

This is thanks to the fat old man who purchased a batch of expensive monitoring equipment for the office building, although it looks very blurry on the screen, but in fact, the resolution of these pictures is not low.

After zooming in on the picture with professional equipment, the two figures on the fluorescent plate gradually appeared in front of everyone.

One of them is undoubtedly Chang Qingshan, and as for the other one, no matter what kind of facial details, even the crutches supported by his right hand, they are exactly the same as Lin Bayi.

"Now, you can't deny it anymore, can you?"

After hearing me say this, everyone present turned their eyes to Lin Bayi.

Although Lin Bayi's power is huge, after I came up with substantial evidence, the originally tilted balance began to gradually tilt to my side.

After observing the enlarged picture in front of the screen in detail, Liu Hao took a deep breath, and then walked in front of Lin Bayi: "Senior Lin, can you explain what is going on with this picture?" ”

In the face of the mountain of ironclad evidence, Lin Bayi still did not show the slightest panic, and his surprised look when I took out the surveillance screen quickly disappeared from his face.

"Yes, I did go to the office that night and met the man in the picture. But what does this mean? As for why I didn't appear in the surveillance footage, it may be a coincidence, I happen to be standing in your so-called blind spot area.

Is it just because I happened to meet Chang Qingshan at that time, so you are going to condemn me and say that I killed those people in that unbelievable way? ”

"You still don't admit it, are you still struggling?"

I don't understand why he continues to hide it when it's come to this.

The inconsistencies in his rhetoric and the fact that Lin Feng had to testify on his behalf were enough for the police to designate him as a key suspect. And the reason why Lin Bayi can continue to sit here now is largely because of his fame and former status.

"Mr. Detective, please bring me conclusive evidence to prove that I did what you said, and continue to entangle like this, I will not be able to stay here and listen to your story."

Well, since you want conclusive evidence, then I'll give it to you!

I motioned for Lu Yuan to sit back in place, turned off the surveillance screen on the screen, and put away the videotape in my hand.

Shortly after Song Shuai was killed, the pianist at the engagement banquet was also found dead at the scene of the murder, and the cause of death was a myocardial infarction caused by a blood clot near the heart. However, after investigation, it was revealed that the pianist had no previous history of heart disease, in other words, the cause of his death should have been caused by someone.

At that time, the police suspected that the real murderer rushed into the scene of the crime together with the ambulance personnel, and killed the pianist by some means by taking advantage of the chaos.

I turned my head and looked at Lin Bayi: "If I'm not mistaken, you also entered the murder scene with the medical staff at that time, right?" ”

"Yes, I heard downstairs that Xiaoxue was injured, so I rushed to see how she was injured and whether she was worried about her life. Could this be a reason for you to doubt me? ”

Indeed, it is reasonable for a father to care about the safety of his daughter in that situation, and it is worthy of recognition! However, if I'm not mistaken, I didn't see you by his side during the whole process of sending Xiaoxue on a medical stretcher.

So, Senior Lin Bayi, can you explain where you have been and what you have done during the time you entered the hall? ”

After listening to my inquiry, Lin Bayi replied without thinking: "I have been watching the whole process of the rescue, people with a little common sense know that in that case should not cause chaos to the ambulance personnel, although I am emotional as a family member, but it can only be like this, can it be a reason for you to doubt me?" ”

"So, can anyone prove that you stayed by the side at the time, watching Xiaoxue being carried on a stretcher?"

When I said this, Lin Feng and Lin Xiaoxue on the side hesitated at the same time almost at the same time.

At that time, the situation was very chaotic, not to mention Lin Xiaoxue, who had fallen into a coma, I guess Lin Feng must not have seen the specific whereabouts of Lin Bayi after entering the room.

Unexpectedly, Lin Bayi stared at me deadly, and his tone did not give in the slightest: "According to what you say, can someone prove that I didn't stay on the side and watch Lin Xiaoxue being carried on a stretcher?" ”

I looked at him, smiled slightly, and said slowly: "Don't say it, there is really someone who can prove it." ”

After I confirmed that Lin Bayi was the mastermind, I had more than once approached the police officers and even medical personnel who rushed into the scene at that time, and asked them if they had witnessed Lin Bayi's movements in the hall at that time.

Human memory is oriented, and if you ask a person what he had for lunch three days ago, he may not remember it very well. But if you ask him if he had eaten fish for lunch three days ago, he might be able to remember it.

A gray beard, an old face, and a striking cane.

Because Lin Bayi was different from the appearance characteristics of ordinary people, after having specific concerns, some police officers also began to gradually recall the situation in the hall at that time.

After a series of inquiries, we finally came to a concrete conclusion.

Two police officers and a paramedic had appeared next to the murdered pianist after seeing Lin Bayi enter the hall.

Because the situation was urgent at that time, and because of Lin Bayi's identity, the three of them didn't think about it in detail, and it wasn't until they recalled it now that they realized that something was wrong.