"The deceased Xiao Yang, male of gender, 18 years old."

"Identity is a third-year student in Qingcheng High School."

"The total attributes of the three items in the initial entrance examination are as high as 10. I am only inferior to you in Team Gu. It's a pity that a good seedling!"

Gu Sinan snorted coldly: "Old Xu, say the key point."

Xu Zhiyong was not angry and continued: "According to the preliminary investigation, the body spots on the deceased have spread. It is speculated that the death time should be after school last night, which is 19:00 to the early morning. More specific death time may have to wait for the forensic test results."

Gu Sinan nodded.

Xu Zhiyong squatted down, his expression gradually became calm, his voice calm, as steady as an old dog.

"The cause of death should be the knife on the neck, killing it with one knife, clean and neat, there is no trace of fighting on the scene. It seems that the murderer should be a veteran, and it is very likely that he is a...professional. Otherwise, with the attributes of the deceased and insisting on training, it is impossible to be killed instantly without any reaction."

"No other discovery was found at the scene, there were no traces of moving the body, and the shape of the blood spray was not interrupted. This should be the first scene."

"Is the scene a secret room?" Gu Sinan looked around and asked slowly.

Xu Zhiyong sighed lightly: "It can be said yes, or it can be said not. The deceased lived alone all year round and his parents were not around. The door lock is just a level three security algorithm. Even if our people use ordinary equipment, they can crack the password in just 12 minutes. If the murderer is prepared, this door lock is useless to the murderer."

"Okay!" Gu Sinan directed the scene without a word of nonsense: "Everyone, carefully search for all corners where the murderer might leave traces."

"Yes! Team Gu!"

"Lao Xu, who reported the case?"

"Here, there, it is said that it is the classmate of the deceased."

Xu Zhiyong pointed to the corner of the house.

Gu Sinan looked in the direction Xu Zhiyong pointed, and a high school student who looked "unusual" was buried behind the crowd.

His ordinary appearance makes people easily ignore it accidentally.

The high school student's expression was a bit cramped. When he saw Gu Sinan looking at him, he was like a "frightened bird" and his body was retracted into the crowd.

Gu Sinan, who is intuitive and sensitive, interprets the above information from a short encounter.

...

...

"Name?"

"Yirin."

"gender?"

"Sister, I don't seem to be growing to the point where it's hard to tell the difference between male and female..."

"Stop talking nonsense, what do you ask about what you say? Gender?" Gu Sinan shouted coldly with a stern face.

"male……"

"age."

“18.”

"Is it the first time you discovered a corpse? How could you have the password for the door lock of the deceased? What is your relationship with the deceased?" Gu Sinan's mouth was like a machine gun, and he asked three questions in a row.

"This..." Yi Lin was slightly stunned, then pointed to Xu Zhiyong with a helpless look on his face, and whispered: "This uncle has asked these things once just now."

Xu Zhiyong's eyes twitched, and he couldn't stand it. He stopped Gu Sinan, who was about to attack: "Captain Gu, I just checked this student. He is a classmate of the deceased. He has a good relationship with the deceased before his death. In the eyes of the classmate, he is the kind of honest friend. His parents have been working abroad for a long time and there is no problem with their identity."

After a pause, Xu Zhiyong handed the tablet to Gu Sinan, pointed to the content above and continued: "As for why he came to the deceased's house, it was because the deceased had not gone to school all day, and the head teacher asked him to come to find the deceased... I just confirmed with the deceased's teacher that this is indeed true. Well, there is no doubt."

When Gu Sinan heard this, she exclaimed lightly, then stared at Yi Lin with a straight look, silent.

She knew very well what Xu Zhiyong said about the "doubt" refers to.

In many classic murder cases, in order to eliminate their suspicion, the murderer often goes the other way, actively discovers the body and involves himself in the case.

This trick might still work if it were at the beginning of the last century.

But now, this is a trick that every criminal investigator has mastered.

Humph, this is the first lesson for criminal investigators to counter routine subjects.

One second.

Three seconds.

Yi Lin looked away.

"Don't dare to look at my eyes? Is there a ghost in my heart?" Gu Sinan's eyes lit up.

"No." Yilin shook her head.

"Then why don't you dare look at me in the eyes?" Gu Sinan took a step forward and approached Yi Lin.

Yi Lin was silent for a moment, then suddenly turned his head and asked at the young policeman closest to him: "Are you afraid of her?"

"Scared, no, no, no, no, no, no, no, no, no, no, no." The young policeman subconsciously said what he said in his heart, but immediately smiled embarrassedly and changed his words.

Gu Sinan: “…”

Xu Zhiyong: “…”

"This, I'll go to other places to check it out first." Feeling that the atmosphere was not right, the young policeman who knew he was saying the wrong thing wanted to slap a few times, and found a reason to slip out.

"Ha." Yi Lin suddenly sighed, then smiled helplessly: "Okay, I'll tell the truth."

Gu Sinan was slightly stunned.

Even Xu Zhiyong, as an experienced old detective, was stunned when he heard Yi Lin's tone change.

I thought to myself, could I misunderstand it?

"I'm actually not a good friend of Xiao Yang at all." Yi Lin looked at Xiao Yang's body not far away: "Isn't he just because his overall attributes are much taller than me, and he keeps asking me to run errands and do homework. In the eyes of other classmates, I may be his good friend, but in fact, Xiao Yang doesn't treat me as a friend at all. I actually know very well. How can people like us who are ordinary at all with geniuses be worthy of being friends with geniuses?"

The voice brought a bit of desolation, desolation, and a bit of helplessness towards reality.

"Since you have a bad relationship with the deceased, why do you come to him?"

Gu Sinan soon thought of a doubt in the information Xu Zhiyong provided before.

Yi Lin said silently, but took out a written historical homework from the schoolbag behind him and handed it to Gu Sinan.

"First of all, this is the order of the head teacher. Secondly... I have to return the homework to him." After a pause, Yi Lin smiled bitterly: "If I knew in advance that this would happen...even if I was beaten to death, I would not run in at this time."

Upon hearing this, Gu Sinan flipped out a few pages of neatly written historical homework, and was silent and fell into deep thought.

At this time, another police officer walked up with a tablet the size of a palm in his hand.

"Counse Gu, the images stored by the AI ​​housekeeper have been downloaded."

"good!"

Gu Sinan did not talk nonsense and directly checked the image data recorded by the AI ​​manager.

Returning home from Xiao Yang...

exercise……

Then a girl came in halfway through...

Then something undescribable happened...

"Tsk tsk tsk." Xu Zhiyong instantly showed an expression of an experienced driver.

Gu Sinan glared at Xu Zhiyong fiercely, then poked his fingers hard on the screen, fast forward, fast forward, and finally skipped the unsuitable shot of the child and continued to look down.

Xiao Yang entered the gym...

Until 22:18.

The image suddenly broke.

"Mayor Gu, I just checked here. From 22:18, the circuit of the community malfunctioned, but now it seems that the murderer cut off the power supply, so it's gone later."

“No backup power supply?”

"This AI butler is only a home version, and the home version of AI butler usually does not have a backup power supply." The young policeman explained helplessly.

...

When the image reappears, the time is already 23:49.

Xiao Yang has become a cold corpse.

In addition to Xiao Yang's body, there are no traces of the murderer in the room.

Gu Sinan continued to fast forward without expression, and kept seeing Yi Lin entering the door and discovering the body.

"Where is the surveillance in the community?"

"I have already taken it as soon as possible, but I may have to go back to the bureau and study it slowly."

"Where is the forensic doctor?"

Xu Zhiyong looked at the time: "It should arrive in 20 minutes."

"Give them ten minutes more, if you don't come within ten minutes, you won't be able to use it in the future."
Chapter completed!