I'm a street kid, but my wife, a policewoman, won't divorce her

Chapter 698 The murderer’s psychology, the increase of pleasure points and collapse!
Less than five minutes had passed since Cao Xiuyuan left.

Sun Zhou, who appeared out of nowhere, also came downstairs with Director Chang.

When the two saw Chen Xiao sitting not far from the door, they just nodded to each other as a greeting.

Soon, everyone left.

Only Chen Xiao and Qin Fei, who came down from upstairs last, were left.

After the latter came to Chen Xiao, he said meaningfully:
"Captain Sun just waited for Captain Cao to leave before going upstairs through another door."

"What did he do upstairs?"

"He was trying to please Director Chang. After all, he was very interested in the results of the trace examination in the house today. But Captain Cao is the best at trace examination. Captain Sun probably thinks that even if Captain Cao finds something, he won't tell him."

Chen Xiao curled his lips and did not respond.

Qin Fei rubbed his face and sighed:

“Seeing them like that, I actually find it quite boring.”

"How about we go back to Shenzhen? The bidding will be held tomorrow!" Chen Xiao immediately became interested.

Qin Fei quickly shook his head: "That won't do, Uncle Qin... The boss doesn't like me to give up halfway, so this time I have to investigate the case to the end no matter what!"

Chen Xiao smiled and then pointed to the trunk:

"There's a folding chair in the car. You can move it down so we can rest and discuss this together."

"What else is there to discuss? Although you said that we should get used to looking three steps ahead before taking one step. But today's results have taken us several steps forward." Qin Fei muttered as he moved a chair.

Chen Xiao nodded: "Indeed, it is enough to take one step and look three steps ahead. Continuing to look back is just putting pressure on yourself. However, don't you think that our current investigation is actually based on a guess?"

Tan Fei was very confused.

Because of the tone issue, they had already made a very detailed analysis.

All the problems revolve around the fact that someone deliberately lured Yuan Keyu to Xiaozhuangnan Town.

The reason for coming to the small town was naturally the academic issues that Yuan Keyu was most interested in.

Moreover, this academic issue was of such extreme importance that Yuan Keyu adopted an attitude of absolute confidentiality.

But why did Chen Xiao continue to mention the word tone?

Seeing the confusion in Qin Fei's eyes, Chen Xiao continued:

"The speculation I'm talking about is the one in the reason for murder that Sun Zhou analyzed for me."

Qin Fei suddenly realized: "You mean, there might be a bad guy who kills people out of a desire to create a sensation?"

"Yes, this feeling has become stronger since we set the tone tonight. And whether it's you, Captain Cao, or Captain Sun, you should all be familiar with murderers with this mentality."

"After being a police officer for a long time, you will encounter one or two abnormal people."

Qin Fei replied, and Chen Xiao narrowed his eyes: "Based on past experience, do you think the impact of the current case is what he wants?"

"Isn't that enough? The police elites of the whole province have formed a team to investigate the case he committed!"

As soon as Qin Fei finished speaking, his brows instantly frowned again.

"No, if we analyze it based on past experience, the murderer should not have felt any other pleasure besides the pleasure of the task force."

Chen Xiao's expression also became solemn.

He had only mentioned it casually. But he hadn't expected that it would become a serious problem if he hadn't mentioned it.

Even Qin Fei couldn't suppress his inner emotions and said again:

"Chen Xiao, if this is true, the murderer's current state of mind may be completely the opposite!"

"That's right. As time goes by, he may not feel any pleasure at all. On the contrary, he may become more and more irritable because the whole case is still kept secret!"

"Right, right, right. This type of murderer kills people because they have no connection with the deceased. They kill people just for fame, a bad reputation! So their pleasure will have several stages. First: the first pleasure will be gained when the case is completed!"

"After that, the case will be investigated by higher and higher departments, and he will once again reach the peak of pleasure between department changes!"

"But this is not his ultimate goal! His ultimate goal should be to let everyone know what he did. Only by letting more and more people know can he satisfy his most twisted desires!"

"So, in the case of Professor Yuan's murder, the current complete lockdown will make him extremely irritable. And his irritability may very well trigger a new round of killings!"

"Once his new killing appears, it must be extremely targeted!"

“For example…”

Qin Fei did not say the rest, because at this moment he also thought of Liu Dayou's hexagram theory.

The hexagram of Cao Xiuyuan seems to be both good and evil, and also implies life and death.

What is life and death?
It can be understood as a life-or-death situation!
"Let's go, let's follow Brother Xiuyuan now, there's a good chance something might happen to him!" Qin Fei was already a little impatient, after all, he and Cao Xiuyuan had a good relationship.

When it comes to human life, Chen Xiao would not be careless. He nodded and immediately put away the chair.

The two of them got back into the car, but Qin Fei, who was driving, asked:
"Chen Xiao, do you think it's necessary to remind Brother Xiuyuan openly?"

"You have the choice. After all, I'm here to help you, so the choice is yours. If you remind him directly, his safety will be improved. If you don't remind him, then we may have a golden opportunity to catch him in a trap!"

Chen Xiao stated his decision bluntly.

Qin Fei didn't hesitate at all, and his lack of hesitation also made Chen Xiao feel relieved.

"Of course I have to remind you directly. No matter what, in my heart, although Brother Xiuyuan wants to be promoted, he is still a very good and responsible police captain."

"As a police captain, it's not wrong to want to go one step further!"

After hearing his words, Chen Xiao directly dialed Cao Xiuyuan's number.

After all, Qin Fei was driving at the moment.

As soon as the call was connected, Cao Xiuyuan asked, "What's wrong, Chen Xiao?"

"Captain Cao, I want to..." Chen Xiao had just said one sentence when Cao Xiuyuan on the other end of the phone said something very unexpected:

"What you think has nothing to do with me. I have shown you all the investigation results of the task force without hiding anything. So, no matter what you think, I, Cao Xiuyuan, have contributed everything I have found out. If you still don't believe me... then I can't do anything about it."

After saying this, Cao Xiuyuan hung up the phone.

Listening to the beeping sound coming from the microphone, not to mention Qin Fei, even Chen Xiao was confused.

"What does Brother Xiuyuan mean by this?"

"Why call him to ask about the progress of his investigation? He is really a ..."

Qin Fei paused again, and then looked at Chen Xiao in shock, who had already understood the content of the call!

(End of this chapter)