The famous criminal in the world of Conan

Arriving at the monitoring room, the manager asked Bai Masong.

"Officers, what time period do you want to check?"

"When did the deceased check into the hotel?" Bai Masong asked.

"The four guests on the top floor all checked into the hotel around dusk, and it seems they haven't left since checking in."

The hotel manager thought for a moment and said.

"Then pull up all the surveillance footage from the moment the deceased entered the hotel until you went up to open the door."

Bai Masong said this to the manager.

After receiving Bai Masong's instructions, the hotel manager immediately asked the security guard in the monitoring room to retrieve the surveillance footage from this evening until the time he went upstairs.

"Okay, officers, look."

The manager pointed at the monitoring display and gestured.

Seeing that the surveillance footage was being called up, Hakumasong and Inspector Megure lowered their heads and leaned over to look at the surveillance footage.

Originally, Bai Masong was actually quite happy, after all, there were surveillance cameras here.

You know, surveillance in island countries is rarer than diamonds.

If there were more surveillance cameras, Gin would have been wanted nationwide long ago just for his habit of never covering his face.

However, when Bai Mashong looked at the surveillance video, he was greatly disappointed.

Because there is nothing on the surveillance!

Yes, nothing.

From the time the deceased checked in until the manager went upstairs, only three people left the elevator.

They were the residents on the same floor, Kinoshita, Hanai, and Koshimizu Nanatsuki.

Officer Megure looked at Hakuba Song in bewilderment and asked stutteringly,

"Brother Bai Ma, so the murderer must be one of these three people, right?"

"It looks like that."

Hakuba Matsu nodded, confirming Inspector Megure's answer.

Bai Masong couldn't help but sigh in his heart, very good, it is worthy of being a case in the Conan world, and it is also a classic three-choice event.

After watching the surveillance video, Hakubamatsu, Inspector Megure and the hotel manager returned to the top floor together.

As soon as Officer Megure came back, he immediately cleared his throat, coughed a few times, and said to everyone,

"Now, my brother Bai Ma and I have made a major discovery. That is, from the time the few people checked into the hotel until the time the dead were found, no one had come up to this floor during this period of time!"

After hearing what Officer Megure said, Shiratori Renzaburo immediately reacted and said,

"In other words, the murderer is one of the residents on this floor?"

"So it seems like this."

Inspector Megure confirmed.

What the two said was actually very correct, but it caused dissatisfaction among some people present.

Kimura said impatiently,

"They always talk about the murderer, the murderer. It's not certain whether there is a murderer or not! What if this uncle is so depressed that he wants to commit suicide and build a secret room to disgust us all?"

Well, everyone doesn’t agree with what Kimura said. No one should be so stupid.

However, his words also reminded Inspector Megure and others that the problem of the secret room is the real problem!

You know, the island country also practices the presumption of innocence. What does that mean?

Until anyone is convicted by judicial trial, he is still innocent.

Nowadays, locked room cases are rampant, and there are also cases where suspects attempt to use locked rooms to make the police presume that the death was a suicide.

Although no secret room has been brought to court before being cracked, if it were to be brought to court, given the island country's judicial procedures and the involvement of a capable lawyer, the outcome would be unpredictable.

After listening to Kimura's words, Bai Masong narrowed his eyes and walked towards the deceased's room.

The other policemen also followed consciously. They were not necessarily thinking about cracking the secret room. After all, they all had some self-knowledge.

But, it would be fine if I could help Baimasong.

We can't just watch Bai Ma Song take them away.

The three suspects standing by also stood there consciously without moving.

In fact, Nanatsuki Koshimizu was still very interested in this secret room, but as a suspect, she could only watch.

Bai Masong once again entered the deceased's room. This time he went straight to the bedroom. After all, this was where the deceased died, and it should also be where the secret room was set up.

Bai Masong looked at the surrounding layout and gradually felt that something was wrong.

First of all, there was the knife that was stuck in the body of the deceased.

The knife is about thirty centimeters long, which is quite long, not as long as a dagger.

A knife like this is actually not very convenient, because it is easily visible, inconvenient to carry, and not concealed.

If that's the case, then why did the murderer use it?

Another suspicious point is the tape recorder.

Why do tape recorders exist?

Yes, the existence of the recorder itself is a suspicious point.

You know, there are many types of secret rooms. In a sense, secret rooms are actually divided into two types: those that need to be discovered and those that do not need to be discovered.

It is not necessary, just like the secret room in the original Shanni Temple.

The secret room in Shanni Temple was a secret room once it was built, just like what happened to Monk Zhongnian two years ago. Even if it was discovered after several days, it could still only be considered suicide because it could not be accomplished according to common sense.

It needs to be discovered, just like the bathroom murder a few days ago.

What Qingdao Quandai produced is not an enclosed space at all, but it can take advantage of other people's illusions to turn the bathroom into a secret room.

This case today also gives Bai Mashong some similar feelings.

If we don't use this recorder, the deceased can be found after they check out tomorrow or when the staff comes to clean. Why bother?

Thinking of this, Bai Masong walked to the deceased, squatted down, and once again checked the key point that formed the secret room - the plastic bottle containing the key.

This time, Bai Masong put on white gloves, picked up the plastic bottle and examined it carefully.

Soon, Baimasong discovered that the plastic bottle seemed to have been hit, and there seemed to be some signs of frequent sliding on the bottle body.

Originally, Bai Masong heard from Koshimizu Nanatsuki that this bottle was sold in the hotel, and he thought that the murderer was simply thinking of using local materials, but now it seems that this is not the case.

Unusual long knife, tape recorder, and squeezed bottle................................