We returned to Ningzhou Vocational and Technical College again to investigate, and the scope of the investigation was still Feng Yuhan's dormitory.

With Feng Yuhan's character, at eleven o'clock in the evening, she would never leave the dormitory building too far.

We have already investigated Feng Yuhan's bedroom, and all the monitoring that can be checked has also been investigated.

But this time we have a clearer direction, which is to follow the footsteps of the garbage all the way to investigate.

We went directly to the garbage bin outside Feng Yuhan's dormitory to investigate, and the garbage from the entire building would enter here through the garbage chutes on each floor. When we arrived, there was already half a box of garbage.

If Feng Yuhan really threw his body in this garbage bin after being killed, then with the continuous throwing of garbage, the body would soon be covered, and it was reasonable that no one found it.

In addition, the garbage sorting truck directly uses a robotic arm to deduct the garbage in the garbage bin into the garbage truck, which is indeed not easy to be found.

So our first goal now is to find the first crime scene.

The dark green bin in front of us is very large, and the garbage bin is also printed with the school's logo and the dormitory building number to which the bin belongs.

Just like the garbage bin in front of us, it says Building 3 in Area A, which is Feng Yuhan's dormitory building.

It is said that this school has printed the school logo on all the items in the school, and even the trash cans used in the students' dormitories are printed with the LOGO.

"There's something strange here." After Jiang Tingbai carefully observed the garbage can, he suddenly said in a deep voice.

"Strange? Where is it strange? Li Meng immediately stepped forward to take a closer look.

Jiang Tingbai pointed to a depression in the garbage can, and said quietly: "Look, there is a break here. ”

"What's so strange about a broken dumpster." Li Meng frowned, quickly took a few steps back, avoided the pungent smell of the garbage can, and said indifferently.

Jiang Tingbai stretched out his hand and knocked on the garbage can, making a few muffled sounds, then he shook his head slightly and muttered: "The material of this garbage can is very strong, because this garbage can is customized by the school, and it is printed with the school's LOGO, indicating that this garbage can is intended to be used by the school for a long time." ”

"So, why is there such a deep depression in such a sturdy garbage can?" I followed Jiang Tingbai's words and continued to ask.

Jiang Tingbai stood up straight and looked at me: "That's right, what can cause this kind of depression must be caused by a blunt instrument, and it has an extremely powerful impact." ”

"Yes!" Li Meng suddenly came back to his senses and let out an exclamation.

As soon as she finished speaking, there were several strange noises in the garbage chute, and a large amount of garbage fell into the garbage bin through this garbage chute.

Li Meng calmed down and continued: "The cause of Feng Yuhan's death was also a blunt blow, which caused a ruptured spleen. ”

"The crux of the matter is here, if Feng Yuhan is killed near here, and then the murderer throws her into the nearest dumpster, everything can make sense. But there are also traces of this blunt blow on the dumpster......"

Before I finished speaking, Li Meng immediately added: "So Feng Yuhan was standing in the dustbin at that time, and then the dustbin was hit hard with a blunt object, which indirectly caused Feng Yuhan to be hit hard with a blunt object...... However, why did Feng Yuhan stand in the garbage bin at 11 o'clock in the evening? ”

As she spoke, she seemed to find that this did not make sense.

After all, no one would show up in the dustbin at eleven o'clock at night, so was she looking for something in the dustbin? Or did she mix her belongings in the trash and dump them in the garbage chute? And then she came to the dumpster looking for items?

So what blunt weapon did the murderer use to inflict such a severe blow?

After a while, Lin Zifan and Xue Hang walked towards us, and they carefully searched around here with a biomonitoring detector in hand, and found no suspicious traces.

"There's something here." Jiang Tingbai suddenly said again.

We hurried up to see what clues he had found.

Because Jiang Tingbai's eyes are worthy of all of us' trust.

I saw him stretch out his hand with white gloves and wipe it the depression of the garbage can, and the white gloves were suddenly stained with some black paint.

"What is this?" Lin Zifan looked carefully at the paint on Jiang Tingbai's fingertips and asked suspiciously.

Jiang Tingbai raised his finger and looked carefully at it through the sun's rays, and then he put it under his nose and sniffed it.

"Take it back and let the trace department examine it." Li Meng said seriously.

Jiang Tingbai shook his head, smiled slightly, and said very confidently: "I am known as Eagle Eye, and my eyes are sometimes more sophisticated than the instruments of the laboratory department. ”

"So what's the lacquer on your hands?" Li Meng asked with some disbelief.

Jiang Tingbai observed carefully for a while, and said slowly: "This is the car paint." ”

"Car paint?!"

Lin Zifan was a little surprised, and then immediately came back to his senses and said seriously: "So what caused the depression of the garbage bin was a high-speed car?!" ”

"Now it seems that the so-called blunt murder weapon is a high-speed car." Xue Hang nodded and let out a long sigh of relief.

"So the murderer put Feng Yuhan in the garbage can, and then drove the car to load it heavily, which led to Feng Yuhan's death?! This method of killing is really unique. Li Meng nodded thoughtfully.

Although the method of killing is unique, it is the only reasonable explanation based on the clues currently available.

After a while, Jiang Tingbai suddenly said again: "This is not only a car paint, but also a kind of color-changing car paint." ”

Discolored car paint is tuned with pearl powder, which is difficult to find. And before painting, a special polymeric material - paramagnetic coating is applied to the body.

The principle is that the magnetic fields of different magnetic properties affect the spatial position of the colloidal crystals and thus control their reflection of light, thereby changing the color.

The most famous color-changing automotive paint is Pompeii, which has been ranked first in the world for a second time.

Although the management of this school is not strict, the management of cars that can be driven on the campus is quite strict, and every car must apply for an on-campus parking permit in the school.

So this car must be a member of the school, as long as we investigate in the school, whose car uses this kind of color-changing car paint, we can find the murderer!

Thinking of this, all of us have a relieved state of mind to keep the clouds open and see the moon.

Without further ado, the Serious Crime Team immediately set out to investigate.

This time, the murderer is really not far from us, and this case of missing persons is also going to be closed......