Hattori Heiji looked around at everyone's expressions, and then proudly explained.

"After death, the heart stops beating, and even if the artery is cut, the amount of bleeding is limited, so such a large amount of blood at the scene was shed before the deceased died, and now, judging from the blood clotting of the deceased at the scene, the time of the deceased's death is not far from now. When I entered the door, I found that there was surveillance at the entrance of this store, and the murderer would be too conspicuous to leave the scene in such a short time, so in order not to be suspected, the murderer must still be hidden among the group of people at the scene! ”

"But the murderer doesn't have to go through the main gate when he comes in and leaves."

Gao Yuan was a little speechless.

"But be wise, you must know that except for the main entrance, the back door of our store is always locked from the inside, and if the murderer does not go through the main entrance, there will be no other way out."

Store manager Kinoshita Kawashi explained.

"That's right, when I first came over, I went to look at the back of this store and found that the door was indeed locked from the inside, if the murderer really left from there, it could only be that the murderer had an accomplice and was mixed in the store, but in any case, you in the scene are all suspects, or real murderers, or accomplices!"

Hattori Heiji said excitedly, especially after hearing Takato's narration just now, he looked even more proud.

Gao Yuan sighed, "There is actually a little strange thing about the scene, there are so many blood stains, but the murderer did not step on it and left footprints. Like you said, this amount of blood was left before the deceased died. Considering the cause of death of the deceased, the murderer must have remained at the scene before the deceased's death, so it is strange that the murderer left the scene that was already full of blood but did not step on it. ”

"What's this, the murderer just paid a little attention. You see, Officer Otaki didn't step on it when he went in. ”

Heiji Hattori said nonchalantly, "And when the murderer leaves, the blood may not spread like it is now." ”

Gao Yuan knew that he didn't say anything, so he continued to explain.

"Don't you think it would be suspicious for the murderer to be careful to leave the box through the door? What would you do if you were a murderer and were leaving the scene and not wanting to be discovered? ”

"Needless to say, of course, make sure no one ...... in the hallway."

As Hattori Heiji spoke, he suddenly realized what Takato wanted to say.

If the murderer leaves the box from the door, then in order to ensure that he will not be discovered, it is best to confirm that there is no one in the corridor, but once he wants to do this, he must be close to the door to listen to the movement outside the door, or it is best to see the situation outside the door with his own eyes, but the space of the entire box is only so little, to do this action, it is necessary to get close to the door, and the blood in the box should have spread to the vicinity of the door at that time, so it is too difficult for the murderer to confirm that there is no one outside the door. Unless the murderer does not confirm it at all, he will open the door and leave. But is the murderer really so bold that he is not afraid of being seen?

Looking at Takato, Hattori Heiji understood that Takato had thought of this a long time ago before he said what he said before, but if so, how did the murderer leave.

Looking at the box again, Hattori Heiji noticed the vents on the roof.

"You mean, the murderer entered the scene through that ventilation duct? It's impossible, the style of this vent is fixed and sealed with screws, even if the murderer enters the scene through it, the screws must be removed, and the deceased can't find out about the movement in this way! Unless the murderer and the deceased knew each other, and there was no surprise about the murderer's appearance...... But this is not right, the murderer should obviously have a big enmity with the deceased! ”

After thinking about it for a long time, Hattori Heiji felt that his head was a little big, and he felt that he was being wrapped in it.

"It's not necessarily as complicated as you think, but you have to look at the vents. Officer Otaki, please go up and see if there is any glue left on the edge of the vent. ”

Gao Yuan said.

"You suspect that this vent was removed in the first place and then secured with something like glue, and the murderer just had to push hard to get in? And then when you leave, you will not be found by screwing it? ”

Hearing the word "glue" in Takato's words, Hattori Heiji understood.

Takato responded with an "um", which made Hattori Heiji feel that he was a little underestimated by the young brother who claimed to be a detective.

Of course, it is not a great thing to think of this, but because similar methods have appeared in the Lavender Villa incident before, when Gao Yuan thought that the murderer might have come and gone through the vent, he naturally had this suspicion.

Officer Otaki immediately took action, stepped on the table, reached for the edge of the vent and carefully touched it, and sure enough, he felt some sticky touch, and gave an affirmative answer.

"If that's the case, the murderer obviously came to this box in advance, but why is the murderer sure that the deceased will come to this box?"

Hattori Heiji was puzzled.

"I have a question I want to ask before that."

Gao Yuan looked at the employee who had just returned from the front desk with the registration materials.

"Did the network problems in our store happen after the deceased came to the store?"

When asked like this, the employee suddenly remembered something, "It seems like this, I remember that the deceased came to our store for the first time to surf the Internet, and then soon we received complaints from customers that the network in the store was very poor, and the deceased was a rare customer who did not come to complain that day, so I have some impressions." ”

Hearing this, the store manager Kinoshita Kawashi looked at Takato and seemed to understand something.

"Wise, what do you mean by that?"

"Well, I have been managing the network in the store for the past few days, and I found that the culprit of the network fluctuation came from the store, and I think someone should have installed malware on the store's computer after coming to the store to surf the Internet, thus affecting the network of the whole store. And the deceased came over every day these days, and he couldn't help but be a little suspicious. ”

The store manager asked a question that seemed to be confirmed, and Gao Yuan answered affirmatively.

"But why did he do it?"

Kinoshita Kawashi was puzzled, and Hattori Heiji on the side heard the unexpected clue and pricked up his ears to listen.

Gao Yuan really didn't think about this question in detail, and after thinking about it for a while, suddenly, Gao Yuan asked: "Did the network problem happen after the employee took leave?" ”

After Gao Yuan's question, the store staff suddenly realized that this was indeed the case.

Heiji Hattori, who listened to their remarks on the sidelines, also said: "Speaking of which, the murderer this time has to do something in the store in advance, which shows that he knows the structure of this Internet café very well, so the employee you mentioned who asked for leave is very suspicious!" ”

At this time, the siren sounded outside the door, and the police who had just received the alarm came to the scene, but it seemed that they were all the subordinates of Officer Otaki, and the deployment of the scene was quickly arranged by Officer Otaki, in addition to the protection of the scene to collect evidence, the police were also specially sent to investigate the ventilation pipes, and then considering what Hattori Heiji said just now, he planned to go to the home of the employee who asked for leave to investigate.

"How? Why don't you go to the employee's house with you? ”

Heiji Hattori invited Takato.

Gao Yuan was about to readily agree, but an employee ran over in a panic and said to Kinoshita Kawashi: "Store manager! Oh no! The server ...... in the store"

Hearing this, Gao Yuan's expression changed slightly, and he ran to the main computer of the store's management server, and the store manager and Hattori Heiji also followed, seeing that Hattori was in such a hurry, and Ye and Officer Otaki also hurriedly followed.

When I came to the main computer, I saw that the data in the server was being deleted by an unknown program!

There are virus programs that bypass the firewall written by themselves! And the emergency procedures were not triggered!

Gao Yuan urgently did a few operations, but he was powerless!

Baron of the Night!

Gao Yuan subconsciously thought of this name!