The elevator was a narrow and confined space. Due to its special nature, it was difficult to ensure that the murderer would not leave any traces after committing the crime.
When Fang Yu came into contact with the elevator for the first time just now.
Because she had just started the case, there were many things that she did not have a clue about.
At that time, Fang Yu didn't know the direction he had to work hard and consider, so even if his observation ability was extraordinary, it was inevitable that he would miss something.
However, things were different now. Fang Yu had come with a purpose this time. He believed that he would definitely find something.
Having experienced so many crime scenes, Fang Yu knew that some murderers could be very cunning and their methods of committing crimes could be very ingenious.
However, he would definitely not leave behind any traces.
There was no perfect crime in this world.
"Fang Yu, I still don't quite understand.”
"You said that Qian Yun had accomplices. She and her accomplices worked together to kill Li Yanhong.”
"But we clearly found that Li Yanhong was the only one in the elevator during the entire process.”
"If the murderers were all outside the elevator, how did they kill them?”
When they arrived at the elevator where the crime occurred, they communicated with the police officers on duty again. Fang Yu and the others were allowed to enter the elevator.
At the same time, Qin Ya frowned and her tone was filled with doubt.
"What if the murder weapon was in the elevator?”
Fang Yu couldn't help but laugh at the silly Qin Ya, so he reminded her.
"The person outside the elevator manipulated the weapon in the elevator to commit the crime?”
Qin Ya patted her big forehead as if she had understood something.
"No, that's even more impossible!”
"If it was some chemical poison gas released from outside the elevator into the elevator, I could understand.”
"But the murderer directly beheaded the victim.”
"The chemical gas can't do this, right?”
"To be able to achieve such an effect, it must be an axe or a knife.”
"But we've already checked. The elevator is well sealed and there's no damage.”
"How could these weapons be sent into the elevator without anyone noticing?”
"Even if we can send them in, how can we control them to execute the difficult beheading?”
Qin Ya threw out a series of questions like a curious baby.
However, Qin Ya's questions were not just her own.
This was also the question of Guan Yunfeng and the others.
If they didn't find out the murderer's method of killing, all the assumptions would be empty talk.
"Who said that an axe or a knife is necessary to behead someone?”
Fang Yu walked into the elevator and began to carefully observe the surroundings.
Guan Yunfeng, Qin Ya, and the others had already developed a serious habit of thinking and walked into a dead end of deduction.
They did not think about it at all and took it for granted that to behead someone, they had to use a common knife or axe.
Little did he know that in the past thousand years, Fang Yu had seen too many murder weapons that no one dared to think about or even understand.
Fang Yu recalled these tools in his mind one by one.
Then, he combined it with the crime scene in front of him and began to slowly investigate.
He tried to find the best weapon to kill someone in the elevator.
Suddenly, when Fang Yu's hand kept sliding across the inner wall of the elevator.
His fingertips seemed to feel something strange.
After sensing the abnormality, Fang Yu quickly lowered his head to check.
He tilted his body sideways and saw that the color of the place he was pressing on was a little wrong through the light from the elevator.
Moreover, the touch on his fingertips was a little sticky.
"Manager Wang, can I trouble you to find some powder?”
Fang Yu wanted to do an experiment.
"Powder?"
"Can we use sand for fire fighting?”
The hotel manager did not know what Fang Yu was going to do.
The only thing he could find now was fire-fighting sand.
"Sure."
"Wait a moment, I'll go get it."
A few minutes later, the hotel manager brought over a bucket of heavy sand.
Fang Yu reached out and grabbed a handful of sand.
Then, he shook it slightly, shaking off the larger sand particles, leaving only some very light small particles.
Then, Fang Yu gently threw the fine soil in his hand onto the inner wall of the elevator.
After using almost half a bucket of sand, Fang Yu had already thrown the entire area around the elevator with fine soil.
Initially, Guan Yunfeng and the others were puzzled by Fang Yu's actions.
However, when Fang Yu stopped, they seemed to understand something.
Guan Yunfeng and the others saw that most of the fine soil thrown up by Fang Yu had fallen off because the inner wall of the elevator was too smooth.
However, there were exceptions. In the lower right corner of the elevator near the door, in the middle, and in the upper left corner of the top, there was a fingernail-sized spot covered with fine soil.
Moreover, these positions were not on one side. They were on both sides of the elevator and were symmetrical.
It was obvious that these places had been taped.
Because after the tape was torn off, the sticky substance on it was left on the elevator, which led to the fine soil.
Moreover, the tape on both sides of the elevator was so symmetrical and orderly. Someone must have done it deliberately.
Moreover, the possibility of him being the murderer was extremely high.
These things might be the traces left behind by the murderer that Guan Yunfeng had been looking for all this time.
This book is provided by FunNovel Novel Book | Fan Fiction Novel [Beautiful Free Novel Book]