"I'm here to investigate, not to collect evidence!" Zhao Yu spouted nonsense, "Where would you put on gloves? Don't worry, your daughter isn't Sherlock Holmes, she won't be able to tell! "
He ignored the old woman's objections and grabbed a book.
It was a book about anesthesia. Zhao Yu flipped through a few pages and realized that there were quite a few notes in the book.
Li Dan's handwriting was neat and clean, without any alterations. From this, it could be seen that she was a meticulous and logical person.
Zhao Yu flipped through a few more books, and they were all the same. He could not help but ask the old woman at the door, "Has your daughter studied medicine? Why are there so many books related to medicine? "
"No, no!" The old man answered affirmatively. "She only worked in a pet clinic many years ago, which is the famous Dr. Lu Veterinary Shop. Dandan worked as an assistant for them! Maybe she needs to learn something about that? "
"What?!
Pet clinic?
Veterinary Shop? "
Zhao Yu was shocked. The anesthetic used by the murderer of the Lost Hand Case was an animal drug, and the source of this drug was a veterinary shop!
This could not be a coincidence, right?
Could it be that this Li Dan …
Zhao Yu put down the book and scanned the room again. He did not know why, but he felt that he might find something more important in this room.
"Old lady!" Zhao Yu thought for a moment, then asked, "Is your house online?"
"Yes!" The old woman answered, "I'm useless, but my daughter is!"
"Where's the computer? Is there one? "
"My daughter has a laptop, and she always carries it with her. It's probably not here."
"Then …" Zhao Yu pointed at the room, "there's no writing desk in her house, so how does she use the computer? Lie on the bed? "
"Yes, she lies on the bed!" The old woman said without reservation, "Not only does she use the computer, she also writes on the bed when she reads or writes. Oh, right, under her mattress, there's a lot of white paper. I often see her writing on it, and there's a lot of photos too! "
"Oh!"
Zhao Yu nodded. Suddenly, he came to a realization!
"What?! What did you say? Under the mattress? "Zhao Yu was shocked, and his eyes widened," What … what's written on it? "
"I … I don't know either! I just accidentally saw it a few times, my … my daughter doesn't know, I know … she's kneeling on the bed, and writing very seriously … I … I only saw it through the crack of the door! "The old woman was so scared she could not speak coherently, not knowing what to say.
"Ah?!"
Zhao Yu didn't ask any more questions. He strode over to the bed and reached out to lift the mattress and bedsheets.
"Officer!" The old lady was frightened and rushed over to stop Zhao Yu. "My daughter is a neat freak. This bedsheet … You must not touch it! My daughter's eyes are very sharp. No matter how I clean it up, she will definitely be able to tell!
"You!" Zhao! "Zhao yyyyt!" Zhao't Zhao's words. "You! be! "Zhao't't", "'t't tell, your daughter '!"'t "'t" "to say"'t. "Zhao't''t.
't.'s'T't., Zhao't say, he,'t to say, "t." Yu, "t., he," "t, Zhao" t't ","
Zhao Yu grabbed a corner of the mattress, and pulled it up.
When he tore it open, the scene that appeared on the bed shocked Zhao Yu!
Sure enough, the flat bed was covered with white paper. The white paper was densely covered with many words, and there were also many photos, pictures, and photocopied or printed documents!
The scene in front of him was very similar to the whiteboard the police used for case analysis. But this thing was even more detailed and meticulous than the police's whiteboard! The amount of information it contained was also much more than the police's whiteboard!
"Holy sh * t!"
At that moment, Zhao Yu's heart was beating wildly. He did not even need to look at the words. Just by looking at the photos on the white paper, he was completely sure that the female prodigy, Li Dan, was the culprit of the Lost Hand Case!!!
Gao Tian, Yuan Lili, Luo Meina, and the others' photos were all stuck in eye-catching places. Next to them was a black pen that recorded all their information. It was obvious that Li Dan had done a very detailed investigation on them.
Zhao Yu rolled up the mattress and carefully looked at the very beginning of the white paper. He saw that below Gao Tian's photo, there was a black and white photo that had been printed out. The photo showed the vent of a ventilation pipe.
Looking further down, there was a date, location, and other information. This information matched the situation where Gao Tian's hand had been chopped off.
It could be seen that Gao Tian's hand had been chopped off by Li Dan!
"Ah Xi!"
Zhao Yu put all the information together and was able to piece together the entire Lost Hand Case. When he finally understood Li Dan's modus operandi, he could not help but be shocked once again!
Li Dan's plan was so meticulous that it had reached an unimaginable stage. It was simply flawless! Before she decided to make a move on Gao Tian and the others, she had made careful preparations a few months in advance.
For example, Li Dan knew that Gao Tian was coming to Qinshan for the concert and knew her seat number.
She also knew that after the concert, Gao Tian would definitely go through the underground tunnel, and that there were no cameras in the tunnel.
Because Gao Tian's seat was near the front, when she left, she would naturally line up at the back of the crowd. This gave Li Dan a better opportunity to make her move.
Zhao Yu guessed that Li Dan had also bought a ticket to enter the stadium and followed Gao Tian.
When the concert ended and Gao Tian entered the tunnel, Li Dan knocked her out when no one was paying attention. She dragged her to a small room in the tunnel where no one was paying attention and anesthetized her and chopped off her hand!
The most critical moment had come. After committing the crime, Li Dan did not immediately escape, but went to the ventilation room on the other side of the tunnel.
The ventilation room was where the stadium's underground facilities were ventilated. There were several ventilation pipes that led to other places. Li Dan waited there until the sky was almost bright before entering the ventilation pipe. She then followed the route she had planned and left through the exit of the stadium's sanitation department.
When she left, it was the time for the sanitation workers to go to work. She had already prepared a sanitation worker's uniform and left the stadium while there were many people. No matter how good the police officers in charge of the surveillance were, they would not have noticed her.
What was even worse was that in order not to arouse suspicion from the surveillance cameras, she had prepared a container of formalin in the ventilation duct and hid Gao Tian's right hand there. It took her more than two months to retrieve it.
Qu Ping had considered the possibility of the murderer escaping through other channels, but because the ventilation room was locked, she did not investigate there. She did not know that Li Dan had already gotten the key to the ventilation room a few months ago.
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