"I'm angry when I say that." Shen Sen's face sank, "Back then, those rice buckets casually came up with the idea that they would turn on the gas and commit suicide after taking sleeping pills, it was just a mess." I checked the autopsy report of that year, and the drug content in the bodies of Li Deqiang and his wife was only four or five tablets at best, which allowed them to sleep well at most, and it could not cause death at all. Those guys only knew that there were sleeping pills, so they didn't look at how much there was, and they made random conclusions about suicide, it really was! ”

In other words, although Li Deqiang and his wife took sleeping pills and the gas did leak, it was probably not a suicide. They may have taken sleeping pills to help them sleep because they were stressed out just before the court session was about to begin, and it happened that the gas leaked and was ignited by the cannon thrown by the kid to start the fire. ”

Shen Sen looked at the words "he deserves it" and said, "There is a high possibility that this case is a vendetta, and it is closely related to the case three years ago." The killer cut the gas pipe and opened the valve in order to create a fire with the same cause as the one that started three years ago. These four words, written by the murderer here, indicate that he believes that Li Defu and his wife caused the death of Li Deqiang and his wife, and he came to take revenge. ”

"The scope of the murderer should be among the relatives and friends of Li Deqiang and his wife, and the next step is to investigate the relatives and friends of Li Deqiang and his wife, Brother Shen, this difficult task will be handed over to you."

"Then you ......"

"I haven't eaten dinner yet, I'm starving, I'm going home. Of course, I believe that tomorrow the wise and martial Brother Shen will identify the suspect. ”

“……”

Jiang Tian took out the dumplings from the pot, put them in a large bowl, and poured a large number of chili peppers.

"I always feel like I'm from Sichuan."

Jiang Tian sat on the sofa eating dumplings, looking at the information that Shen Sen had just sent to his mobile phone.

"Li Jinxuan, the most suspicious. Sin deserved, hateful, qualified. Zhang's mother has a deep relationship with Li Deqiang's family, and there are certain suspicions, but they will not kill anyone. However, it took more than half an hour to go back and forth from the Yexuan bar to the scene of the crime, and they were all in the bar when the fire broke out. It's not them. Jiang Tian was eating dumplings, and his brain was running rapidly, "Li Deqiang's parents died early, and he has no other relatives except for his younger brother Li Defu and daughter Li Jinxuan. Li Deqiang's wife Xia Min's parents also passed away due to illness a few years ago, and there is only one cousin, Xia Yu, but the two do not seem to have a deep relationship and have not been in touch for many years. Xia Yu only appeared at Xia Min's funeral three years ago, and since then he has been doing business in S Province and has never returned to H City. ”

"Wait, the murderer can not be at the scene when the fire starts......" Jiang Tian slowly stuffed the dumplings into his mouth, "If this is the case, there will be evidence at the scene of the crime, and evidence at the scene of the crime." ”

Thinking of this, Jiang Tian sent a text message back to Shen Sen.

"There is no such thing as perfect crime, so you should be no exception." There was a hint of a smile on the corner of Jiang Tian's mouth.

Early the next morning, Jiang Tian was woken up by Shen Sen's phone call, and Shen Sen asked him to hurry to Li Jinxuan's house.

Half an hour later, Jiang Tian came to Li Jinxuan's house and saw that Shen Sen was arguing with Li Jinxuan about something, so he hurriedly stepped forward and asked Shen Sen what had happened.

Shen Sen handed a evidence bag in his hand to Jiang Tian and said, "Xiao Tian, after you asked me to carefully inspect the bedroom of Li Deqiang and his wife, I really found something that I had ignored before. ”

"What is this?"

"Timer switch." Shen Sen looked at Li Jinxuan with a cold face, "Originally, this was just a plastic fragment, and no one knew what it was when it was burned like that." But Skynet was restored, and there was a chip fragment on the fragment, which I took overnight for identification, and they said that it should be a fragment of a timer switch. I searched for all the twelve merchants in H City that sold switches, and found that only Zhang's mother had bought them in recent months. ”

"You talk nonsense! How could Mama Zhang kill someone! Li Jinxuan said anxiously.

Jiang Tian looked at Shen Sen's red eyes and deep dark circles, and patted Shen Sen's shoulder, "Brother Shen, it's been a hard work." ”

"Little things." Shen Sen smiled tiredly, and then looked at Zhang's mother, who had not spoken, "Zhang's mother, how do you explain?" ”

"I did buy it. Come with me. Zhang's mother said and motioned for Shen Sen and Jiang Tian to come with her.

Zhang's mother took the two to the kitchen, pointed to the timer switch in the kitchen and said, "However, I still bought it here." Alas, when I am old, I often forget to turn off this and that, wasting electricity, and it is easy to buy a timer switch. ”

Shen Sen looked at the timer switch in surprise, and before he could say anything, Li Jinxuan pointed at him with red eyes and scolded: "You policemen are not good things!" A few years ago, my parents died inexplicably, and you actually said that they were suicides, and they were talking and laughing with me before I went out, how could they suddenly commit suicide! And now here you are wronging people again, a bunch of bastards! ”

Li Jinxuan covered her face in pain and cried, Zhang's mother hurriedly hugged her into her arms, and said calmly: "Two, I'm sorry, Miss She is a little uncomfortable, since the matter has been investigated clearly, then please go back." ”

"Hehe, hey, in such a hurry to drive us away, there is a ghost in your heart?" Jiang Tian smiled.

"Are you sick?" Li Jinxuan looked at Jiang Tian and said in disgust.

"Xiaotian, you ......" Shen Sen frowned, and stopped talking.

"Brother Shen, believe me." Jiang Tian smiled and said, "I think, the murderer is still one of these two people, or both, it's right to be caught." ”

Li Jinxuan heard that he wanted to rush over to hit Jiang Tian, but was stopped by Zhang's mother, and could only keep calling "crazy".

Jiang Tian sank his face, "I'm indeed a little crazy, but I'm a sane madman." There is a saying that excludes all factors that cannot be eliminated, and the rest is the truth even if it is impossible! Kill Li Defu and his wife to avenge Li Deqiang and his wife, only the two of you have the timing and motivation at the same time. ”

"Little Housheng, then how do you explain that timer switch?" Zhang's mother said.

"Don't worry, I'll talk about this later." Jiang Tian sighed, "I'm actually quite stubborn, if I decide that a person is a murderer, then I will do everything I can to think about it and find all the evidence that can prove that he is a murderer." If in the end this person is not the murderer, then replace the next one. Mom Zhang, you used two timer switches to make me sure that you were the real murderer! ”

"Evidence." A hint of panic flashed on Mama Zhang's face.

"Don't worry, let me pretend for a while. Ahem, how did the murderer use a timer switch to set a fire? Considering that the gas pipes at the scene of the crime were artificially cut and the two deceased were doused with gasoline, it is accurate to say that it was not gasoline that ignited the gas, but the gasoline ignited by the electric spark generated when the timer switch was turned on. In this case, the person with the timer switch is the murderer. However, there was a timer switch at the scene of the crime, and there was another timer switch here, and Brother Shen investigated twelve merchants who sold switches, and only one of them had been sold in the past few months. It is impossible for the murderer to be idle until a few months ago to buy it and only commit the crime yesterday, and the merchant who sells the switch has no motive to commit the crime, so where did this extra timer switch come from? Hehe, Mom Zhang, this is where you are not very clever. ”

"What do you mean?" Zhang's mother's tone was already a little flustered.

"Still don't understand? Okay, then I'll be a little more detailed. Another timer switch, I'm afraid I didn't buy it from a merchant, but bought it online, right? ”

Mama Zhang bit her lip and looked at the ground, as if she was thinking about something.

"You originally wanted to use the timer switch to create an alibi for yourself, so that the police would think that someone else had set the fire to the crime scene, and you would not be suspected of being at the Yexuan Bar all along. But you can't know if the police will find the remaining pieces of the timer switch in the rubble, so you buy another timer switch, so that even if the police find it, you can say that you have always kept the timer switch at home. ”

Jiang Tian looked at Mama Zhang and said, "Mama Zhang, this is just my reasoning. As for the evidence, two timer switches, enough is enough. I want to find out what the online shopping record is, and the almighty Brother Shen can still find it. After all, I guess there's only one way to shop online. ”

"Yes." Shensen nodded.

"What a clever boy!" After Mama Zhang smiled bitterly, she suddenly pushed Li Jinxuan away and ran out. Shen Sen reacted immediately and immediately chased out. But I didn't expect Zhang's mother to run very fast, and after running out of the room, she went directly to the garage and got into it to start the engine quickly. By the time Shen Sen arrived, the car had already hit Shen Sen like an arrow off the string, and Shen Sen had to dodge.

"!" Shen Sen cursed, then ran to the police car and got into the cab. Jiang Tian and Li Jinxuan arrived and also got in.

"What are you doing here? Go down, it's dangerous! ”

"I want to ask Mama Zhang why she did this!" Li Jinxuan shouted at Shen Sen, his emotions a little out of control.

Shensen hesitated for a moment, then started the car.

"Brother Shen, you can too, you can't outrun Mama Zhang, plus what happened to Li Yu last time, you are really ...... OK! ”

Shen Sen's old face flushed, "I didn't expect her to come here suddenly." ”

After that, Shen Sen hurriedly sent a message to his colleagues, asking for someone to intercept Zhang's mother's car as soon as possible.

But after chasing for a few minutes, I gradually lost sight of Zhang's mother's car.