Seinfeld looked at the glowing particles under the table and said, "Phosphor!?" ”

Wang Bing asked, "Captain, do you need to send it to the forensic department for testing?" ”

"Well, let's take a sample!" Song Feipeng stood up and patted Wang Bing's shoulder by the way, "Well done, I didn't even find this detail!" ”

Being praised by the captain, Wang Bing was flattered for a while, and was about to raise his head to say some kind words, but almost hit the table again, Song Feipeng blocked it for him with his hand, Wang Bing felt that he had hit something, but his head didn't hurt, and he immediately understood, and clumsily prepared to thank him.

"Alright, let's get to work! Go home early! Song Feipeng said with a smile.

"Okay, Captain."

This Xiao Wang has been in the team for more than a year, and he is still so restrained in front of him.

However, Wang Bing is serious and meticulous, and he is also seen by Song Feipeng, thinking that this kid will be successful in the future!

Song Feipeng walked to the windowsill, rested his elbows on the windowsill, and looked around the office.

The area of the office is about 8.0x5.0m, and there are eight walnut-colored solid wood desks on the ground, on which various teaching aids, test papers, and homework are piled up, and several filing cabinets are placed against the wall.

Xiao Wang's location is the deceased's desk, the deceased fell face down on the ground, the back of the head near the occipital bone formed a softening foci, here was hit twice by the murder weapon, there are three hammer wounds on the body, these hammer wounds in the cervical vertebrae have two places, there is a waist one.

The killer apparently started from behind, and Seinfeld looked at the door on the left, when the deceased was standing in the hallway with his face facing the window facing the street, and the murderer came from behind and slammed a hammer on the back of the head......

This reasoning is a bit too sluggish!

Song He walked over and pushed and pulled the door, and the murderer pushed the door in and walked over to the deceased, and it was difficult for him to guarantee that he would not make a movement and not be noticed by the deceased.

Could it be that the murderer is an acquaintance? Sudden attack while the deceased turned unprepared?

In fact, many people in the team also think so, and Seinfeld still has doubts about this.

By the way, it was around a quarter past nine, there was no one in the school anymore, even if the murderer swaggered in, it didn't matter if he was found by the deceased, the deceased was just a weak woman weighing 36 kilograms and 155 tall.

Seinfeld's eyes are like wearing invisible VR equipment, and where he is staring, the crime scene in his brain is being staged.

He froze the brain picture at the moment of killing, walked over, and looked at it from a different angle, a black figure in front of him was picking up a hammer from behind and knocking it on the back of Liu Jia's head.

"He's not that tall!" Seinfeld muttered to himself.

The first blow is most likely to be hit on the occipital bone, and if the killer is struck from behind, his raised arm should be parallel to the back of the deceased's head, in that case......

"Captain, what did you just say?" Wang Bing's voice and face broke into Song Feipeng's fantasy, and Song Feipeng said impatiently: "You go out first!" ”

"Oh......" Wang Bing, who was inexplicably yelled at, had a hot face, and hurriedly packed up his things and left.

"Bring the door!"

Seinfeld was the only one left in the dimly lit office, and he was free to unfold his reasoning imagination.

"In that case, the murderer should only be about 155 tall, is he a woman or a child? Child? Why can't it be a child, this is a school! ”

His fantasies continued, and after the killer struck, the deceased fell, and Seinfeld put his finger to his mouth and carefully speculated whether the deceased was falling forward or backward, or trying to hold on to the table?

The medulla oblongata is the life center that innervates the sympathetic nerves throughout the body, and after being hit vigorously, the person will stiffen, convuls, vomit, and even suffocate, after being hit, the deceased's reaction must be very violent, which is the body's instinct to avoid the source of danger.

But the murderer knocked twice in the same place, and after the deceased fell, his head was facing the door......

"Yes, she's sitting! It's also possible that he was lying on his stomach, so the murderer's height doesn't matter at all! ”

"The deceased was reading a book or playing on her mobile phone when someone came in, and she just looked back and went about her business...... Then the murderer is still an acquaintance! At least people who know each other! ”

"The deceased usually leaves work early, but this day is late, and it is the weekend, and she is waiting for ...... The murderer was not the one she was waiting for, otherwise she wouldn't have taken a look and continued to do her own thing. ”

Seinfeld's brain was running at high speed, restoring all the details of the scene.

He pulled the chair out and sat down in the deceased's place, recalling that if someone hit the back of the head with his head down, there was a high probability that he would spurt nosebleeds and mouth and nose secretions.

None of this was found in the office, and the deceased was supposed to be reading a book......

Song Feipeng pulled out the books and flipped through them one by one, and at the very bottom of the pile he found a "Boys and Girls Gold Edition" magazine, probably an idle book confiscated from the students, and flipped through it, and found that one of the pages had been torn off.

When at the end of a series of reasoning, verifiable evidence appeared, as if the mortise and tenon joints designed according to the drawings were spliced together, this feeling was far more exciting than smoking.

His reasoning is tenable, this magazine should be the one that the deceased was reading at the time, and it was splattered with bodily fluids, so the murderer tore off this page.

Seinfeld examined it carefully, and the murderer dealt with it quickly, and all the bodily fluids that had splashed on the pages had not had time to penetrate, but there was still a little bit of penetration, and there was a small trace of wetting on the latter page.

He picked up the book and looked left and right, and in the spine of the magazine, there were some tiny particles that felt like - phosphor!?

The phosphor was indeed left by the murderer!

The magazine was too big to fit in the evidence bag, so Seinfeld found an A4 piece of paper to wrap it up and rolled it up.

He stood up and walked to the window facing the street, there was a road outside the school, and the buildings on the opposite side were all shops, and it was unlikely that there were witnesses at 9 o'clock in the evening, but the neighborhood was heavily monitored, and some clues might be captured.

Looking down, there was a flower bed, and Song Feipeng suddenly thought that this window was the window where the boy fell a few years ago.

Standing silently for a while, after it was completely dark, he left the scene and found that Xiao Wang was still standing next to him, and Seinfeld asked in slight surprise, "Why haven't you left yet?" ”

"Captain, I forgot to report to you, today the school janitor told me that at half past eight that night, Teacher Feng entered the school and left after about nine o'clock."

"Teacher Feng?"

"Feng Shuai is the boyfriend of the deceased Liu Jia."

"How tall is he?" Song Feipeng asked casually.

"I don't know...... Need to meet him? ”

"Well, you go tomorrow! By the way, give me the sample you collected, and I'll take it back. ”

"Captain...... My partner drove the car away, can you give me a ride? Wang Bing shyly pleaded.

"Come on!" Song Feipeng waved his hand.

Seinfeld went to the parking lot to pick up the car, lit a cigarette, and thought about the doubts of this case, which seemed ordinary, but his intuition told him that it might not be simple.

Engrossed in pondering things, Song Feipeng drove the car past Wang Bing, who was waiting at the door, and Wang Bing shouted from behind: "Captain, I haven't gotten in the car yet!" ”

But Seinfeld had already left in his car.