Chen Shi said: "Don't be discouraged. Although the case seems to have formed a closed loop, I think there are still clues."
Lin Dongxue said: "By the way, Zhang Xiao's criminal technique was learned in prison, so would his accomplices also know him in prison? The prison is a large-scale criminal technology exchange forum."
Peng Sijue pointed to the water tank where the corpse was found and said, "If this kind of criminal technique is not taught, most people really can't think of it."
Lin Dongxue said excitedly: "Then I will check with whom Zhang Xiao has stayed in prison."
Chen Shi added: "Also, this person is now outside the prison. They may have been released together."
Lin Dongxue and Xu Xiaodong left first. Chen Shi and Peng Sijue stayed here to do the experiment. There are other water tanks nearby. Of course, it is impossible to use cyanide for the experiment. Peng Sijue used sodium bicarbonate and sulfuric acid with similar properties.
When opening the water tank, everyone was extra careful, for fear that the murderer prepared any "surprise" in it. Fortunately, the murderer did not suffer from illness to this point. There was nothing in the water tank except the foul and dirty water.
At the beginning of the experiment, Peng Sijue asked his assistant to go to the mouth of the barrel to measure the concentration of the release every five minutes. Until about five o'clock in the evening, the assistant said that the concentration was infinitely close to zero.
Peng Sijue and Chen Shi looked down at the watch together. The two looked at each other. Chen Shi said: "45 minutes... I remember the police came half an hour after calling the police. It took ten minutes to understand the situation, and then went from house to house. There was more than enough time. , The murderer put the lid on and ran downstairs. Is it possible to meet the police? How did he leave the community without being suspected?"
"Dress up as a repairman or something!" Peng Sijue said.
"Just now Dongxue said..." When Lin Dongxue was mentioned, Chen Shi suddenly thought that the two of them saw Wu Xu downstairs that day, a prisoner who had served his sentence. Last night, Lin Dongxue saw Wu Xu again, near Zhang Xiao's residence.
Wu Xu drove a waste collection car, and he could go in and out of various districts at will without being suspected. Isn't it possible...
Thinking of this, Chen Shi hurriedly called Lin Dongxue, but she did not answer. He called Xu Xiaodong again, and Xu Xiaodong said, "Brother Chen, I'm watching the surveillance here at the property."
"Did Dongxue not be with you?"
"She made a call with Team Lin, and then it seemed that she suddenly remembered something, so she took a taxi and left."
Chen Shi felt a little bit inwardly, maybe she went to Wu Xu by herself! ? Sometimes she is really impulsive.
The place where Wu Xu lives was where Lin Dongxue used to rent a house. Chen Shi hurried downstairs, and while driving, he called Lin Qiupu and asked him to take people there.
At the same time, Lin Dongxue had just returned to the place where she used to rent a house. She thought that Wu Xu had appeared that day, and that he had appeared again near Zhang Xiao’s residence last night. This is probably not a coincidence, although she doesn’t want to think about that. , But it is precisely that he meets the characteristics of the suspect.
In order to verify, she decided to ask Wu Xu's mother, the former landlord.
After getting out of the taxi, she discovered that Chen Shi had just called and sent a few text messages, "Don't act alone, wait for me!!!" Lin Dongxue laughed that he was a little overly worried. Of course, she couldn't go directly to Wu Xu. , Just ask his mother for something.
In order to prevent Chen Shi from worrying, she still replied: "I am waiting for you at the gate of the former community, hurry up!"
Chen Shi replied: "Scare me to death, and don't say hello, don't move before I come."
"Okay, got it!"
The sky was getting dark, and someone suddenly shouted: "Miss Lin, why are you here?"
Lin Dongxue turned her head and found that it was the former landlord's aunt, and smiled: "I'll do something."
"Oh, it's been a long time since I saw you, come to my house and sit down."
"No mom, are you shopping for groceries?"
"Yes, shopping for groceries, going home to cook, have you eaten?"
"No, how's your son doing?"
As soon as he heard "your son", the landlord's face immediately sank, "He... he finally bought a second-hand car, collected it, and made two hard money. Alas, you know, he can't find this ingredient anywhere. When I get to work, even the restaurant is reluctant to ask him for tea and water. Regardless of which interview unit, he only needs to listen to "has a criminal record", and it will be nowhere! Alas, I really am not complaining about the government. It's the same, but everyone looks down on you when you really return to society, and you can't even find a job. Alas, if you say too much, it's tears." At this point, the aunt wiped out a few sad tears. It seems that this time has passed. It's really bitter.
"It seems that it's not easy for you." Lin Dongxue comforted, "I'll ask you one thing. On the night of August 3, where did Brother Wu go? Do you know?"
The landlord’s aunt suddenly widened her eyes, "Ah!? Are you investigating him? After all, I still don’t treat him as a good person. My son has already changed his mind. Why can’t the government give him a chance to re-behave? What? If that's the case, what kind of fixed-term imprisonment is there to get life imprisonment, as long as you commit a small crime and you can be shot directly, it will save you a lifetime of miserable life afterwards, alas!"
The landlord’s aunt was full of complaints, making Lin Dongxue a little helpless. She said: “I’m investigating a case, but I really don’t mean to discriminate against your son. When investigating a case, sometimes hundreds of people have to be asked, just ordinary questioning. ."
"Then my son stays at home, he didn't hire anyone and didn't provoke anyone. You didn't ask anyone and asked him, what do you mean by you!" The landlord turned her face.
"Auntie... Will you cooperate?"
Lin Dongxue suddenly found that the landlord’s aunt’s right hand had been hidden in the vegetable basket. She raised her eyes to see, and the aunt deliberately covered it. Lin Dongxue didn’t care about any politeness. She directly grabbed the landlord’s right hand and found that she was sending a text message, and that article was being edited. The text message read: "Don't go home, the police come..."
Lin Dongxue looked at her incredulously. In the past, the impression of this aunt had always been amiable and reasonable. She couldn't believe she would do such a thing.
The aunt yanked her hand back and said, "Poor parents, can I let you take my son away? Last time you took him away for more than ten years. If you take him away again, I will never want to see him in my life. It's him!"
"Auntie, do you know something!?"
"me… "
Lin Dongxue suddenly noticed her aunt's eyes looking backwards, she turned her head violently, and saw Wu Xu striding over and holding a handkerchief in her right hand. Lin Dongxue realized that something was wrong and immediately went to draw her gun.
The aunt held Lin Dongxue's hand from behind and shouted, "Son, hurry up!"
"Let go!" Lin Dongxue roared, hitting the aunt with her elbow, but the aunt pinched so tightly that she wouldn't let her draw her gun.
"Don't move my mother!" Wu Xu roared and rushed over, covering Lin Dongxue's nose and mouth with the kerchief in her hand. She understood the smell when she smelled it, it was chloroform, and it was all over.
Wu Xu grabbed Lin Dongxue's left arm and put her handkerchief on her face. Auntie hugged her right hand from behind. Lin Dongxue shook her head desperately, holding back her breath. Some people who entered and exited the community noticed something strange and stopped to watch, but nothing One person stepped forward...