In the dim interrogation room, Dong Biao sat motionless, his eyelids drooped, his face colorless, if it weren't for the fact that his chest was a little undulating, Ding Fan would have thought he was dead.

The first time he walked into the interrogation room, Ding Fan was going up and down a large number of Dong Biao, but this big fat man didn't mean to raise his head to look at him at all.

"Dong Biao, you should know something about coming back today, right?" Ding Fan sat on the chair, leaned on the back of the chair, opened the information in his hand and said: "If you want to go through the procedure, you can do it, I don't care, just tell me where you went on the 10th of this month." ”

Dong Biao raised his head slightly, glanced at Ding Fan, snorted coldly, lowered his head and said, "Haven't you already investigated very clearly, is it necessary to ask me?"

There are more prisoners who don't cooperate, but Ding Fan has seen fewer before?

Anyway, Ding Fan didn't care what their attitudes were, but they didn't want to say it, he also had his own way, and it was not as difficult as he imagined to pry their mouths open.

"Okay, if you don't want to say it, then I'll say it. Fortunately, Ding Fan had already prepared before, and he knew that he would not let go so easily.

So for his documents, Ding Fan's side has already prepared.

"Actually, you were already preparing a plan against your enemy three months ago. Ding Fan spread out the documents in his hand, glanced at them, and said: "You will work overtime on the 5th, 10th, 15th, and 20th of every month, and you will go home very late at night, but you started three months ago, and you did not work overtime, but used these times to run to the Yingchun community and learn to make holes in the outer wall with mice." ”

Dong Biao glanced at Ding Fan, his eyes were white, and his face turned to the side with arrogance, not looking at him at all, and he seemed very indifferent to his words.

"Rats burrow to survive, and you burrow to kill. Ding Fan glanced at Dong Biao on the other side and continued: "And the person you want to kill is actually not Guo Dazhong, but Liangqi who lives next door to him, right?"

As soon as he mentioned Liang Qi's name, Dong Biao's face changed instantly, and his eyes finally changed a little, even the hairs on his body stood up, as if he was exuding angry flames all over his body, and his eyes were red, just like a bull who had been angry.

This is also Ding Fan's expectation, still looking at the information in his hand and saying: "It's just a pity, you have prepared a plan for more than three months, just because Guo Dazhong temporarily changed a little working time, and completely collapsed, it was supposed to be the day of supply, there would be no one in his house, and no one would come back in the early hours of the morning, but everything was so coincidental that day." ”

When he said this, Dong Biao finally began to look at Ding Fan squarely, and even had a little fear in his eyes.

This time, Ding Fan, on the contrary, stopped looking at him, did he take a look at the information in front of him, and still said: "That night, it should be that you plan to go to the Yingchun community for the last time, because the small hole in the wall has almost been dug through, as long as you put the gas canister into it, open the valve of the gas canister and you can easily leave." As long as the gas content in the room is hit to a certain level, the next morning, a slight spark is enough to cause an explosion. ”

Ding Fan said as he stretched out his hand to write a simple diagram on the paper, took it in his hand and said: "There are a total of eight gas canisters outside, and you connect a bottle of gas inside, as long as it reaches a certain content, even if there is no open flame, it is enough for the two of them to die due to gas poisoning." If it's an open flame, the explosion outside will cause the entire wall to collapse in an instant, just enough to cover up all traces of you, and then the police will only be able to deal with the explosion case, and they won't think of you at all, right?"

To tell the truth, this method of committing the crime can already be called a very sophisticated design, first poisoning people to death with gas, and then using the explosion to directly destroy the corpse and the wall, so that people can't tell the way of death at all, they will only think that it was an accident, and they can't imagine that someone is murdering at all.

Lu Zhi listened to it for a long time, and his jaw was about to fall to the ground in surprise.

He has been a police officer for so many years, and he has never encountered such a case, nor has he encountered such a method.

"You...... How could you have thought of it?" This is the first time that Dong Biao has spoken since Ding Fan said it for a long time.

It's just that he didn't expect him to open his mouth to question Ding Fan, why did he know about this.

"Because here are your files, and the gas canisters I found at the site, plus the holes you left in the walls. Ding Fan reached out and took out two photos, and said to Dong Biao: "Have you ever seen a mouse, can you use a tool to make a hole in the wall?"

As soon as Ding Fan finished speaking, Dong Biao, who was sitting on the side, fell silent for a moment.

"To be honest, the plan is really good, and at a glance you know that this is an action that was implemented after careful planning and many stepping points, but you didn't think about how to deal with accidents in this action. Ding Fan's face became a little gloomy and said: "I know that at this time in the early morning, no one will enter and leave the corridor, so you often choose this time to make holes in the wall, and no one will find out, what I didn't expect was that on the last day, Guo Dazhong came back from outside, and when you dismantled the air duct from the gas tank, he happened to see you." In order to be afraid that he would make a noise, you reached out and grabbed a knife casually, turned around and gave him a knife, in fact, if Guo Dazhong wanted to attack you, you didn't even have the ability to resist at all, but he was defenseless, and was stabbed through the throat by you and fell to the ground. ”

The corners of Dong Biao's eyes twitched twice, and he said with a somewhat strange expression: "That's right, I really didn't expect that someone would come back at this time...... But even if I killed someone, this man was a scumbag, and I dragged his body back into the house, and you know what I saw? This bastard was fooling around with a woman, and neither of them had a good thing. ”

Ding Fan almost laughed out loud at his words, I really don't know what he thinks, why should he care about other people's affairs?

"Just because of this, you killed people?" Ding Fan said in a somewhat cold tone: "Do you know what their relationship is? If they are husband and wife?

After saying this, Ding Fan himself wanted to laugh a little, feeling that what he said was nonsense.

This Dong Biao himself can do it, what can't he do?

He himself is a crazy person, and when he saw him, he even slashed with a knife, and it didn't seem to make sense to slash Yang Xiaojuan.

"No way, they're not husband and wife at all. Just when Ding Fan was still thinking about it, Dong Biao suddenly said: "That woman is a broken shoe, she is shameless, and she crawls on the man's bed, and she deserves to be hacked to death, I just wanted to blow her up, and I couldn't do it at all, but I didn't think about it, she woke up suddenly, although I didn't hear what she said clearly, but I couldn't let him see my appearance, so I killed her with a knife, and I didn't pull the knife out of her chest until she lost her breath." ”

Hearing this, Ding Fan couldn't help frowning a little, he always felt that Dong Biao's mental state seemed to be a little wrong, so he stretched out his hand and wrote a few words on the white paper, asking someone to send it to Qiao Dayong.

And Dong Biao on the other side obviously had already said that he was interested, and he didn't need Ding Fan to ask more questions at all, so he talked endlessly.

"After I killed these two people, I glanced at the time in the house, and I knew that the time was about the same, so I hurriedly arranged the gas tank outside, and left the Yingchun community in a hurry, but I don't know why, in the end, this bastard did not die. Speaking of this, Dong Biao was a little disappointed, and Ding Fan was angry when he saw it.

It seems that in the eyes of this Dong Biao, human life is not worth anything at all, and killing people is like killing pigs, and there is no humanity at all.

For a person like him, it is not an exaggeration to say that he is an outlaw, and even an outlaw knows that when he kills, the knife in his hand will tremble a little, but he will not do it at all, it is as if he has done a very casual thing.

Just when Ding Fan was angry in his heart, Dong Biao suddenly laughed, and said excitedly: "Having said so much, in fact, this is all your speculation, isn't it, in fact, you have no evidence at all, unless I confess my guilt, otherwise you have no way to deal with me, do you think I will confess?"

Unexpectedly, Dong Biao's understanding of the country's laws is thorough enough.

He is like a mirror in his heart, as long as Ding Fan has no evidence in his hands, and what he said in the end is that he will inevitably be released, even if he is handed over to the procuratorate, in the end, he will be released directly with insufficient evidence.

It's just that he didn't know that if Ding Fan didn't have evidence in his hands, he wouldn't have arrested him at all.

"It seems that you have done your homework before, do you think I can really save your life if I have no evidence in my hand?" Ding Fan stood up, holding a document in his hand, walked up to him, directly opened the contents of the contents, and said to him: "Did you see it, I said it before, you don't have a backup emergency plan, when you meet someone, you are already panicking, after killing someone, do you remember the time you left?"

As soon as Ding Fan said this, Dong Biao's whole person was instantly stunned, looked at him in surprise, and said in disbelief: "Impossible, you are faking it, I ...... when I leave"

Now he couldn't say anything anymore, he only dared to confront Ding Fan before, just because he didn't leave any traces on the scene.

But he never expected that Ding Fan would be able to find a witness on the road, which he never expected.

"You didn't control the time, it's just one of your flaws, you think there are no traces left on the scene, but in fact, you leave a lot of traces. Ding Fan said as he said, throwing the trachea he brought back before on the table, pointing to this thing and saying: "There will never be two identical leaves in the world, and human fingerprints are the same, while removing this tube, I also left the fingerprints on your hand, just now the forensic doctor has extracted your fingerprints, do you want to know the results of the comparison?"

There is no need to see what the result will be.

Just looking at the black ink on his finger, he remembered the handprint that the woman had told him to press on the paper, and the whole person collapsed on the chair.

Ding Fan saw his state, and he didn't need to ask anything, the documents in his hand were closed, he turned around and walked outside, and the moment he went out, he still spoke: "No one can represent the law and judge the life and death of others, you are not a righteous hero, just a criminal who thinks he is smart." ”