"Brother, tell me how this murderer did it. This door bolt can only be inserted from the inside and cannot be opened from the outside. Otherwise, the nursing home will not lead people to forcefully break the door."

After the two brothers studied it inside and out for a while, Li Tai finally spoke unwillingly.

With the doors and windows closed, even if the murderer could fly over the walls, it would still be impossible for him to leave silently.

Could it be that they hit a ghost?

Especially after the two door panels are closed, it can be said that the gap left is so small that even a finger cannot reach through, let alone a palm.

Such a small gap has no effect at all.

"Artai, do you think the murderer would insert a knife or something along the crack of the door and then carefully lower the door bolt?"

After Li Chengqian hesitated for a long time, his eyes lit up and he spoke.

"Brother, it's not impossible."

With this idea in mind, the two of them pulled out their daggers and started trying.

"Bang!"

A muffled sound sounded in the room, and it was obvious that the two people's attempt failed.

Although Li Chengqian stood outside and twitched the dagger carefully, he still could not put the door bolt into the slot.

Sitting on the ground with a frustrated face, Li Chengqian tried hard to think about why he failed.

The murderer is not a fool, and he will never act easily without a foolproof plan.

Although the sound of the door bolt hitting the ground was not loud, it was enough to attract people passing by the nursing home in the quiet night.

"Brother, you said that we failed because we didn't understand weapons such as daggers, so we failed easily?"

Li Tai believed that the direction of his discussion with his elder brother was correct, and he could only attribute the failure to the improper use of weapons.

"It's not impossible. Among the four suspects, who has the deepest knowledge about weapons is undoubtedly Gu Yuan. Could it be that he is the murderer?"

According to their reasoning, the answer is obvious, this person is Gu Yuan.

The two of them looked at the teacher at the same time, hoping that he could give them an answer.

"The wooden doors in my home have not been processed by skilled craftsmen, so the gaps left are relatively large."

"Even if this is the case, after the two of you tried many times, they still ended in failure. The result is obvious."

"Even if the guards are as good as the soldiers, it is impossible to guarantee that this task will be completed 100%. Do you still think your reasoning is correct?"

Although the method the two of them had discussed was somewhat interesting, the auxiliary tools they had guessed were really inferior.

"My teacher said this not to rule out the suspicion of Gu Yuan, but that he would never use such an unreliable method to commit a crime."

After saying this, Mu Jiuge's voice stopped suddenly and continued to let the two of them think.

Such a huge difference made the two of them suffer a lot. If the officials below were faced with such difficult cases, you can only imagine what their lives would be like.

"Teacher, please forgive the students for being stupid and ask the teacher to help students clear up their doubts."

Li Tai was already lying down, and he knew that what the teacher made was definitely not as simple as it seemed on the surface.

If you have time to think about this problem, you might as well go back and think about the questions the teacher left for you.

"Forget it, my teacher will tell you how the murderer did this."

"According to the government's investigation, the wealthy businessman was killed head-on by the murderer. Your inference is correct. The murderer and the wealthy businessman were acquaintances, and he had no sense of precaution. That's why he succeeded with one strike without making the slightest sound."

"So among the four, only two can do it. Whether it is the nurse or the cook who enters the room at night, it will attract the attention of the wealthy businessman."

"Only the maid who takes care of the wealthy businessman's daily life and the wealthy businessman's friends will enter, which will not arouse his suspicion."

Li Chengqian quickly interjected: "Teacher, the students have also considered this situation, but the two of them really have no motive to take action."

"Listen to what I have said. What I mean is that only the two of them can enter the wealthy businessman's room at night and have close contact with the wealthy businessman, so that the wealthy businessman will not resist."

Mu Jiuge rolled her eyes at Li Qian. Why is this kid so impatient? Can't he just listen to his analysis before speaking?

"I understand, teacher, what you mean is that friends of wealthy businessmen can use the excuse of being unable to sleep to talk to the wealthy businessman, and then kill him."

Li Tai showed a look of surprise, combined with the teacher's words and his own speculation, he directly targeted the murderer on a wealthy businessman friend.

"Having said that, the student still can't figure it out. Even if this is the case, how does he put down the door bolt properly?"

At this time, Li Chengqian no longer struggled with the question of who was the murderer, and he still couldn't let go.

How did the murderer do this? He and his brother tried for a long time but could not succeed.

"Haha, this is indeed the key to this case. It's not that you thought wrong, but that the method you used was wrong. There are actually many ways to lower the bolt outside the door."

"If someone close to a wealthy businessman wants to attack him, why would he wait until his friends move in?"

"So the person most suspected in this case is a friend of the wealthy businessman."

"Maybe you haven't thought of one thing, and that is the motive of the wealthy businessman's friend, because the purpose of committing this crime was just to kill the wealthy businessman. As for the personal belongings, they have not been reduced by half."

Mu Jiuge talked eloquently and continued to guide the two brothers' thoughts. Seeing that they looked thoughtful, he continued.

"Think about it from another perspective, after the death of a wealthy businessman, who is the biggest beneficiary?"

I'm afraid that the two of them can't understand the key here and raise a fatal question again.

"Of course they are the daughter of a wealthy businessman and his heirs."

Without any hesitation, the two brothers spoke in unison.

"Yes, this is the key point of this case. Although the wealthy businessman is as wealthy as the country, he supervises his wife and children at home very strictly and resolutely does not allow them to waste excessively."

"The wealthy businessman only wanted to make money, and he did not manage his wife and children well. This gave his friends an opportunity to secretly cheat the wealthy businessman a lot."

The case itself was made up by himself, so it was naturally up to him to decide what direction he wanted.

No matter how these two boys analyze it, it is impossible to find the real answer. Who makes him too leisurely and does not find some fun for himself? Life is really boring.

"Teacher, what is a cuckold?"

The two brothers looked confused and didn't understand the meaning at all.

"Ahem, this cuckold means that some indescribable things happened between the friends of the wealthy businessman and the women of the wealthy businessman, behind the back of the wealthy businessman, that is, between men and women, you should understand."

Mu Jiuge never thought that the two brothers would ask this, and he almost interrupted his train of thought.

Fortunately, these two boys are not young anymore, so if he explains it more or less, they will understand.

"So that's it. Maybe it's because of this reason that he attacks wealthy businessmen!"

After this explanation, the two brothers completely understood the key to the case and everything was reasonable.
Chapter completed!