Xiao Hei lowered his head and made a gesture of trying to think, and after a while, Na Na said, "What is it?" ”

Yang Xun saw that Xiao Hei couldn't guess, turned his gaze to me, and asked with a smile: "Chen Shen, you are so smart, guess what we found?" ”

My eyes were slightly condensed, and my fingers unconsciously turned the wine glass in my hand, and a brainstorm was blowing in my head.

What did the police find to determine if the killer was a friend or relative of the Mimi family?

Since the police are sure that the murderer is someone close to Mimi's family, it means that that thing is a very special thing, and only people around him can have it, or only people around him can touch it.

Obviously he was poisoned by mercury, and the murderer put the poison into Mingming's food. We don't know where the first poison went, but the second time it went down to Mingming's rice porridge.

Although parents in the countryside have the habit of feeding their children outside the house, with the previous poisoning incident, Mimi's parents will definitely pay close attention to and protect Mingming. This kind of situation of leaving rice porridge outside the house unattended should not be possible. And the murderer was able to put mercury into the rice porridge, which means that the murderer had entered the house.

Yang Xun didn't say that the second poisoning happened during the day or at night, but if it is inferred from the fact that he obviously had to drink porridge, it could not be very late, and the rice porridge should be drunk while it was hot, which means that there were people in Mimi's family at that time.

There are people in the family, how can the murderer come and go freely without arousing the suspicion of others?

Obviously, he has been poisoned once, and the murderer has not been caught yet. For strangers coming in and out of their house, no, even strangers probing around the house, it should be a cause for Mimi's parents to be alarmed.

If so

Yang Xun also said that the police have not yet found the murderer

That means that the murderer is an acquaintance of the Mimi family, at least someone who knows him.

However, this inference is indeed the greatest possibility, but there are no absolutes in the world, and it cannot be said 100% that the murderer cannot be a stranger, after all, what the Mimi family is like, and what the scene is, I don't know. The above inferences are only extrapolated from the general situation. What if the Mimi family is in a special situation? What if his house is so built that strangers won't be noticed?

More importantly, what if the murderer is not human?

In my previous experience, it's really hard to have a direct impact on the real world with ghosts and the like. If you want a ghost to poison directly, that shouldn't be possible. However, that is only my experience, and I don't know much about that supernatural world, so if there are 'ghosts' that may directly affect the real world, it can only be said that I am unheard.

It's too far to say.

Back to the case of the Mimi family.

The murderer was an acquaintance of Mimi's family, this inference is the most probable, and it is also the conclusion reached by the police as Yang Xun said. The police investigation cannot rely entirely on reasoning, and they did find evidence that can prove this inference. But what is this thing?

I pondered for a while, and my mind was about to explode under the influence of alcohol, but I still had no clue.

"You said it was the murderer's tool for committing the crime, and the murderer poisoned it with mercury, what kind of tool did you want? The tool of the crime should refer to the container used by the murderer to hold mercury, you found this container, and it was determined that the murderer was someone close to Mimi's family, what is the reason? I muttered to myself in a voice that only I could hear, and my heart tickled like a hundred claws. Because I felt as if I was about to guess the answer, but I couldn't guess it by a little bit.

After a while, I knocked on my head, finally gave up, looked at Yang Xun and said, "Why haven't you caught the murderer yet?" ”

Yang Xun smiled faintly: "Have you guessed the answer?" If you guess the answer, then you will understand that the murderer can't escape, and it's only a matter of time before we catch the murderer! ”

Listening to Yang Xun's slightly pretended words, a flash of inspiration flashed in my mind, but that glimmer of spiritual light ran too fast, and my dizzy head couldn't catch it!

"Tell me, what did you find?" I shook my head with a wry smile, "I'm too lazy to guess!" ”

Xiao Hei also said: "Yes! Hurry up, say it quickly, I'm going to fall asleep if I sell it again! ”

"Okay, okay, I'll just say that." Yang Xun smiled and said in a smug tone, "Didn't the murderer poison with mercury?" We found the victim's discarded tool in his home - a thermometer! ”

My heart jumped, and the itchy feeling I had felt before disappeared in an instant.

Thermometer!

That's the answer I almost came up with before! There is mercury in the thermometer, which can indeed be called a tool for committing crimes. And—

As soon as Yang Xun's words fell, I didn't hesitate at all, and then his words said: "The thermometer you found was taken by the murderer at the victim's house, right?" ”

"What is the reasoning? The murderer took a thermometer at the victim's house? Isn't he going to poison that kid? How did he know that the other party had a thermometer at home, and he knew where to put it? Xiao Hei asked puzzled.

Yang Xun saluted me with a glass of wine and said, "Chen Shen, I have to say that you are indeed very keen. Yes, the thermometer was indeed in the victim's house. The man who reported the crime had a wife, and she happened to find that her family's thermometer was inexplicably missing two. When we got the news, we searched around her home and found two damaged thermometers in a corner of her backyard. After inspection, the two damaged thermometers had her own fingerprints on them, so we were sure that they were the two that were missing from her family! ”

"I see!" Xiao Hei exclaimed in surprise and said, "No wonder you are sure that the murderer is the person next to the victim!" ”

Yang Xun nodded and said, "Yes!" If you are not a friend or relative, how do you know that the victim has a thermometer in her bedroom drawer? If you are not a friend or a relative, how can you easily go in and out of the victim's home to poison them? ”

As he spoke, his expression suddenly became a little sharp: "Relatives and friends can't believe it, who else can we trust?" This world."

"Don't be so pessimistic." The alcohol was rising, and I said dizzily, "Since there is such an important clue, the murderer should be able to be locked soon, right?" Why haven't you caught it until now? ”

According to the available clues, it is inferred that the murderer has the following characteristics: an acquaintance committed the crime, knew that Mimi's thermometer was hidden in a bedroom drawer, had been in and out of Mimi's house on the day of the crime, had a conflict with Mimi's family (this contradiction may be hidden and not so obvious), and knew that mercury could poison people

It stands to reason that according to these characteristics, the murderer should be found soon!

Yang Xun didn't answer immediately, but took the wine glass in his hand and drank it all, with a puzzled expression on his face, and then slowly said: "This case is strange here." When we found the clue of the thermometer, we also thought that the murderer was caught, but after two days of investigation, we found nothing. ”

"Oh?" I wondered, "What's going on?" ”

Yang Xun replied: "I came to the provincial capital to report the day after I found out the thermometer, so I did not participate in the subsequent investigation, but I had contact with my colleagues who were still investigating the case, according to them, they checked more than 50 friends and relatives around the man who reported the case, and there were a total of five people who matched several of the characteristics. These seven people had all been to the victim's home on the day of the crime, and my colleagues investigated the seven people, and found that these seven people had a good relationship with the informant's family, and no contradictions were found at all. Not to mention the deep hatred that has reached the point of poisoning! ”

Blackie and I were silent. I secretly thought in my heart, the popularity of Mimi's family is really so good, and there is no big conflict with others?

Then why did the murderer poison Ming Ming so cruelly?

...