The room was full of old-fashioned things, a black-and-white TV, a radio, and a rattan chair at the balcony, the rattan chair was new, and when I walked to the rattan chair, I found a black button under the wicker chair, which I picked up and tugged at in the palm of my hand, and slowly put it in my pocket.

Although there is no evidence that Wei Zhenguo is the murderer, there is no evidence that he is not, it is just a matter of probability, and these things are just my inferences, so I can't let him know that I found an inconspicuous button at the scene of the old man's death.

"This rattan chair, I bought it a week ago, the old man likes to sit on this rattan chair every day after eating and look at the flowers of my clock next to the balcony, hey, I really didn't expect that the old man would die on this rattan chair." Wei Zhenguo said, and tears began to appear in his eyes.

I stood next to the rattan chair, my eyes carefully observing everything next to me, but when I looked at the sunflowers growing next to the balcony, I was slightly stunned.

There are more than 20 pots of flowers on the inside and outside of the balcony, each of which is very dense, of course, including the shallots outside the balcony on the left, but only one of them, the flowers are slightly withered, and the petals around them have also fallen on the guardrail.

I suddenly stretched out my finger, pointed to the pot of sunflowers that should have bloomed very luxuriantly, turned to Wei Zhenguo and asked suspiciously, "This sunflower...... What's wrong? ”

Wei Zhenguo followed my gaze, his eyebrows suddenly wrinkled, and he immediately walked quickly in front of the sunflower, and took a shovel knife from the side to turn the soil, turning it over, and kept saying how could this be.

Suddenly, I stretched out my left hand and grabbed Wei Zhenguo's right hand that was about to touch the soil, and then asked Li Mingyu to help me find a plastic bag, slowly move the soil in the flower pot into the plastic bag, and then seal it.

"This ...... What's going on? Wei Zhenguo asked puzzled when he saw me put the soil in a plastic bag.

I glanced at him, and then pulled the plastic gloves on my hand and walked to the back room, saying, "You said that when you pushed the door in, you saw the old man holding Wei Lin's hand and rolling on the ground, with a painful expression, so let me ask you, when you came in, was the door closed, or was it just hidden?" ”

"This ...... At that time, I heard the kid shouting in the house, where is the time to care about these ......" Wei Zhenguo rang for a while and said.

"Then think about it now, whether the door is closed or not." I walked to the door of this room, turned around and said calmly.

I am now 90% sure that this poisonous rat is someone who asked the old man to drink it, in other words, the person who can make the old man drink this thing must be the closest to him, is Wei Lin? No, he's just a kid, and there's no way to get a poisonous rat, is that Wei Zhenguo? It's not right, Wei Zhenguo only got off work and entered the room at the moment when the old man was in the end, there is no way to cheat, and before we came here, Li Mingyu had already asked the merchants in the small shop near Wei Zhenguo, and they were sure that Wei Zhenguo would close the door at about five o'clock.

From Wei Zhenguo's hardware store to here, it took about twenty-five minutes to walk, and that day Wei Zhenguo saw someone selling soft-shelled turtle at the gate of the community, so he bargained and delayed some time.

Since Wei Lin and Wei Zhenguo are excluded, that is to say, the murderers of the old man must be Wei Zhenguo's wife, Wei Xingye and his wife, and the woman named Liu Yun, but who are they? Almost any of them can kill the old man without much effort, not to mention Wei Zhenguo's wife, who can see each other almost every day, but the chance of her committing murder is not great, because after all, the old man has lived here for three years, and during these three years, she has time to commit crimes almost every day, so I can temporarily exclude his wife.

So...... Will it be Wei Xingye? Or his wife Yao Jinhua, or the Liu Yun who has only approached the old man in recent years? The murderer is probably among the three of them.

"Well, I was about to get the key to open the door that day, when I heard a cry coming from inside the door, and I opened the door...... Yes...... Yes, the door of my house was hidden at that time, I was really anxious at that time, the old man was old, even a fall was a big deal, so I didn't pay so much attention when I was in a hurry...... But now that I think about it, the door was open, and my key was held in the palm of my hand from beginning to end, and it was not touched.

I nodded, his narrative was not wrong at all, if he just told me if he didn't want to, then he really had a ghost in his heart.

"Hey, Ye Ze, does it have anything to do with the circumstances of the case whether this door is opened or not? We're mainly trying to find the killer now......"

I glanced at Li Mingyu, who was asking questions behind me, immediately unscrewed the door, touched the edge of the door, and said slowly: "If the door is damaged at the first time, then he will definitely notice it, even if it was not at that time, it will definitely be found after returning from the hospital, that is to say, the door is not damaged, Wei Zhenguo, let me ask you, the key to your house, except for the old man, you, your wife and daughter, Wei Lin, who else has it?" ”

"Our family is like this, because my wife and I often go out to take care of business, and the old man has no one to take care of him at home, so Jinhua often comes to my house to take care of the old man's living and eating, and over time, my younger brother They also have a key, but when we go out, the door is closed, and there are no valuables outside." Wei Zhenguo said naturally.

"Oh? In other words, the key to your house is public, in addition to the door of your house, your brother and your brother-in-law each have one, so what about Liu Yun? Does Liu Yun have it? I asked, confused.

He immediately nodded and said: "Yes, she also has a handful, it was given to her by the old man, for this matter, I also talked about the old man for several months, we are his family, a person with a foreign surname, what key to give her, and from now on, we don't dare to put valuable things in the room, after all, we are outsiders, don't worry." ”

After he finished speaking, I didn't ask any more questions, but sat down for a while and told him that we still had something, and if there were any clues, I would notify him as soon as possible, and when we sent the two of us away, he also gave us his phone number, even though we already had his number in the folder.

When I walked downstairs, Li Mingyu was beside me and stopped talking, his face was red, like a child who had done something wrong, so I couldn't help but want to tease him.

"Hey, buddy, what's wrong, look at your deflated expression, you also feel ashamed?" I patted Li Mingyu on the shoulder, laughed three times, and then said.

"I ...... How can I have, those detectives of yours are deceitful, I have already analyzed it in an orderly manner, how can it still be wrong......" Li Mingyu broke free of my left hand, walked to the side with a depressed face, took out a cigarette and said angrily.

I smiled at him, reached out and snatched the cigarette from his fingertips, and said: "Smoking is not good for the brain, in fact, you are already very remarkable today, to be honest, when you said the inference that the old man could not commit suicide, I really think that your part-time job is Sherlock Holmes is alive, but later, when you testified against Wei Zhenguo, it was really a bit arbitrary, I didn't mean that you were not good enough, you may be in a hurry, a clue that has not been repeatedly considered, it cannot be publicly displayed, do you think, You haven't scrutinized it repeatedly, if this clue is wrong, then you have misled yourself and misled the truth, but if it is right, and you don't have strong evidence, how can you convince the public? People's minds are very active, and it is likely that they will be misled by a document or even their own subjective thoughts, so take your time, nothing can be done at once, right? ”

I'm a person, I don't comfort others, and I don't know how to comfort others, so I just said what I thought to him, indeed, his performance today is really awesome, if Guo Yongjia is replaced, he can fight with Wei Zhenguo just now, but after I refuted him, he hasn't spoken, yes, in his mind, it seems to be following the train of thought I said, as long as you are willing to use your brain, anyone can solve the case, of course, I'm not saying that anyone can find real clues, sometimes, What you see with your eyes is not necessarily true, let alone a clue that you deduce yourself.