Chen Shi and Lin Dongxue explored the neighborhood, but they didn't find any traces of overturning the wall. They also copied the surveillance videos of the surrounding shops.
After the police had gone back, the two drove back. At this time, the preliminary autopsy report came out. The deceased was killed by a double-edged sharp weapon pierced through the aorta, forming a blood clot. Alcohol was detected in his blood, and the blood glucose index appeared to be Just had a meal.
In addition, gamma-hydroxybutyric acid, commonly known as "G water", "amnesia water", and "good water", was found on the car. It is a psychotropic drug and is often used for rape.
A cup of milk tea that was overturned in the car also contained the same drug ingredients. There was unidentified saliva on the milk tea straw, which was suspected to be drunk by the murderer. Judging from the amount and concentration of the remaining liquid in the cup, the murderer had ingested at least 5 mg. This drug.
Lin Qiupu said: "It seems that the murderer asked the deceased to meet, but the deceased was in a bad mood and put the medicine in the drink, so she committed the crime hastily and did not put hawthorn in the deceased's mouth."
Another policeman said: "The deceased had a rape case. It should be a common practice to have this medicine in the car."
"It seems that the murderer was careless and left us a lot of clues. From this guide stick, she should be a blind person... Check the manufacturer and the seller." Seeing that Chen Shi didn't say a word, Lin Qiupu asked: "What's your opinion?"
"Is the amnesia water aphrodisiac?" he asked.
Peng Sijue said: "No, it will only make people confused, but judging by the dose taken by the murderer, she should still be able to leave the scene of the crime."
"I only have one idea. If the murderer can get huge benefits from killing, how did she know about it? She must have killed someone before. It was purely accidental or justified. Tomorrow, Dongxue and I will look for the old case. Is there anyone who meets the conditions."
"I don't agree with what you said about the huge benefits of killing, but I think it's a no-brainer that the murderer was blind." Lin Qiupu said, "Today I visited the friends of the first three deceased. A buddy of Song Jicheng said that Song Jicheng was dead. It was previously revealed that he had dated a blind girl and said that he planned to meet. This meeting time is basically the same as the time when he was killed."
"I think she must be pretty good." Chen Shi said.
"Don't you have any more suggestive comments?"
"There is another. The ophthalmology department does not need to check again. From the murderer's actions, she is a "senior" blind person. Such blind people generally do not go to the doctor. You can find blind people as blind people. The blind people in the city should know each other."
"But there are a lot of them. I never knew that there are so many blind people in Long An."
Chen Shi shrugged, "I'm home."
The investigation of the case is progressing vigorously. In the past few days, the task force has met a dozen blind people on average. Chen Shi and Lin Dongxue also visited some blind people with criminal records, but none of them met the conditions.
There was no such thing, and as soon as Chen Shi saw it, there was a voice in his heart saying "it's her".
On the afternoon of June 15th, Chen Shi and Lin Dongxue went to see a blind man. She had been raped and defended and wounded the rapist. However, when they saw me, she was a 17-meter fat girl with little characteristics of the murderer. Match.
After all came, Lin Dongxue still showed his ID and said, "Are you Kang Li?"
"Yes, you are the police? What's the matter with me, was it the rapist who caught me two years ago?"
"We are investigating a case, and would like to ask where you were on the night of June 13th?"
"I have been in the store that day, and the store manager can testify."
"The blind massage in the alley below?"
"Yes, yes, what case are you investigating? Was that rapist killed by someone back then?"
Chen Shi interjected, "Why do you ask?"
"You may not know that the guy targeted blind people and it was broken. I bit his ear when I was defending. The police found his identity through DNA. He seemed to be called... Luo Shiyu, that's right. ."
"Did he commit crimes later? How do you know that he was only looking for blind people?"
"Because I have a few friends who have also suffered. This guy has been on the run, but it has stopped for a while, so I think since you are looking for me, it is mostly because of this... Is he dead?"
"It's not convenient to disclose this now."
"Let me know when it is convenient for you to disclose it. Because of that, I am afraid to go out now."
"Okay... Who do you know about the people he raped?"
Chen Shi wrote down a few names and said goodbye to Kang Li. He asked Lin Dongxue to call the local police station and ask about the whereabouts of this guy. Lin Dongxue talked a few words, clutching his mobile phone and said, "They said this person has been missing for a year."
"Where does he live?"
"Caoshi Street Guyi Lane."
"Go and see."
"Huh? You suspect this rapist was killed by the murderer?"
"Anyway, I'm still touching at random, so I might as well go and have a look."
After getting in the car, Lin Dongxue asked: "As you said before, the murderer will get huge benefits from killing. What will it be?"
"For a blind person, what good is it worth her to take the risk?"
"It's impossible to regain your eyesight, right?"
"That's what I thought."
"Are you teasing me? Killing someone will restore their sight? How is this possible?"
"I saw the surveillance that day, and I had this idea. I also found it ridiculous, so I asked Miss Gu... We contacted on the mobile phone."
"What did she say?"
"She said that it is possible that psychogenic blindness, also called somatic conversion disorder, is due to the fact that the person involved has suffered a great mental stimulus and part of his physical ability has been lost. However, this loss is different from true blindness. Her eyes are still I can receive the visual signal, but I don’t notice it, just like a normal monitor and a normal computer host, there is a problem with the line between them."
"do not understand!"
"In a nutshell, her eyes are good, but she doesn't know that she can see things, and she thinks she is blind in her heart. Miss Gu feels that under the strong stimulus of killing, she is very likely to be temporarily Fuming, for a blind person, one can see the colorful world at once. This kind of "reward" is better than everything, so she will kill again and again."
"Will there be such a motive for murder?" Lin Dongxue shivered, "Are you sure?"
"Just suppose, after all, the probability of this kind of thing is extremely low, and it already belongs to the category of medical miracles... We start from the high probability event, from the point of time when the murderer commits the crime and the fact that she can come out to meet with men alone, she has quite freedom It’s more likely to live alone in the past two days. In the past few days, we did not visit schools for the blind, massage parlors for the blind, car repair shops for the blind, and so on. All we looked for were blind people who lived together. If she lived alone and looked good , Young blind females, it is very possible to be targeted by a rapist who specializes in picking the blind. Anyway, try your luck!"
Lin Dongxue smiled, "If you try and make mistakes enough, the truth will pop out."