When many people make a mistake or do something wrong, the first thing they do is they are afraid of being held accountable by their superiors. When it comes to the accountability of superiors, choosing how to cover up and find reasons to excuse their mistakes is the first choice of many people, but there are very few people who can take the initiative to take the fault or admit it.

For criminals, the first thought after committing a crime is to cover up their criminal behavior, and it is better that no one will ever know that he has committed such a crime, and the so-called superior leaders that these criminals are afraid of are the power organs of the country, such as the public prosecutor and the law.

In the process of getting in touch with criminals these days, no matter what kind of occupation these people had before they were imprisoned or what kind of crimes they committed, they would choose to escape and cover up their criminal behavior at the first time, and few people were willing to make their criminal behavior public and admit that they were criminals in front of others.

In their hearts, he clearly knew that what he had done was wrong, and he was afraid of being held accountable by others. Therefore, they will try their best to choose to escape and cover up, not wanting others to know what they have done.

But Chen Peng is an exception, he is the murderer of the "11.11 Serial Corpse Crushing Murder Case", he should have hidden himself after committing the crime, but he made his criminal behavior public when the police had not locked him up. Although he didn't directly tell everyone that he did it, he left clues in the pictures and videos posted on the Internet that people could find him.

This is perhaps the biggest difference between him, a professor of criminal psychology, when he chooses to be a perverted serial murderer, and other ordinary criminals, these differences may come from his heart, those things that he himself calls behavioral symbols......

******

"This guy is so bullish that he dares to spread his crimes on the Internet?" A commotion erupted in the classroom.

"Isn't it! So disgusting? ”

"Oops! It's so bloody! ”

"It's so perverted, I don't dare to look at it!"

In today's era of information explosion, mobile phones have become the most convenient and fast channel for people to understand news and information in their daily lives.

Unconsciously, there is an extra mobile phone between people, between people and society, between people and many other things, and many people can only connect with other things through mobile phones, otherwise they will be closed by themselves and unable to communicate with the outside world.

Gradually, many people were kidnapped by mobile phones, which were originally only communication tools, and became slaves of mobile phones, only in the face of mobile phones, these people will have joys, sorrows, or become walking dead.

"Teacher Chen, look, the pictures and videos of the corpse shredding case have been uploaded to the Internet. Is this the murderer's provocation to society and the police? The man with glasses held his mobile phone and shouted at Chen Peng, who was standing by the podium.

"Really? The murderer of this corpse mutilation case is quite special. Chen Peng did not exclaim while holding his mobile phone like those students sitting in the classroom, while holding his mobile phone and exclaiming, lamenting that his ability to bear it was limited, he didn't look through his mobile phone to check the news that exploded on the Internet, as if this matter was dispensable to him.

"Oops! The pictures on the Internet are no longer browsing, and they have been deleted by the website! The man with glasses looked down at his phone and kept exclaiming.

"I still haven't seen a lot of pictures! Why did you delete it? A boy chimed in.

"You can read such a perverted picture, you are really perverted." A squeamish girl gave a blank look, which shouted at the boy who hadn't seen it.

"It's you boys who are bloodthirsty psychopaths, and you like these scary things, and you're as hateful as that psychopath who shredded corpses." Women have a natural rejection of these bloody things, and they don't like to see these unsightly things. However, it can't be generalized, most of the time girls are afraid of seeing blood, but there are exceptions.

Chen Peng looked at the noisy students in the classroom, he did not stop these students' behavior, but quietly watched everyone's expressions change, at this moment under his psychology sat not only his own students, but also his own audience.

As long as he is an actor, he needs the audience, no matter whether his acting skills are good or bad, even if he is a bad actor and applauds, it is another recognition of the actor by the audience. is like a cross talk actor who likes the audience to be "stupid~", these are another recognition of the actor by the audience.

******

Nian Hong repeatedly checked the pictures and videos in his email, and wanted to find valuable clues from these pictures and videos, which is what Nian Hong is most concerned about at the moment.

In fact, not only Nianhong is looking for clues to solve the case in pictures and videos at the moment, but many other members of the task force are also uncomfortable in their stomachs and keep looking for clues on these pictures.

There are also many well-wishers who have seen these pictures and videos on the Internet, although they are a glimpse, but they also upload their case analysis on the BBS of major websites, although some of the case analysis is very unobtrusive, but it is the most popular post on various websites. Now, as long as you search for Bac Giang City, more than 95% of the pages that pop up are posts and news about "11.11 Serial Murder and Corpse Fragmentation Case".

"Director, there's a clue! The provincial department's cyber security experts, although they did not trace the real IP address of the email. But they found a problem in the photo. Zhang Haoming directly pushed open the door of Nian Hong's office, ran in quickly, and said loudly to Nian Hong.

"What's the problem?" After hearing Zhang Haoming's words, Nian Hong stood up directly from the chair, stared at him and asked anxiously.

"It's just that the photo in the email address has one more detail about the photo attribute than the photo uploaded on the website." Zhang Haoming said.

"What is this?" Nian Hong's computer knowledge is not abundant, and for this 50-year-old public security chief, computer knowledge is limited to browsing the Internet and using office software.

"That is, the pictures in our hands were sent directly from the murderer's computer or mobile phone, and the pictures in them were not modified by the website, and the pictures uploaded to the website have been processed by the website upload requirements, and they no longer have these attributes."

"Don't fix these things I don't understand, put it simply." Nian Hong frowned and said loudly.

"It's that these pictures in our hands have the shooting time, and the last save path of the file, and on the file saving path, a person's name appeared, Chen Peng."

"Chen Peng?" Nian Hong asked suspiciously.

"Yes, in the attribute information of the picture, there is a folder with the name Chen Peng on the first save path of the picture. We doubt that the murderer's name is Chen Peng, and the word criminology also appears. Zhang Haoming continued.

"So what are you waiting for? Why don't you hurry up and find out how many people named Chen Peng are in the city, and check all these people for me. Come on! Nian Hong said anxiously.

"I know the director, I'll go investigate!" When Zhang Haoming heard Nian Hong's words, he was about to run out of Nian Hong's office. But when Zhang Haoming just wanted to turn around, he was stopped by Nian Hong.

"Wait a minute, what did you just say besides Chen Peng?" Nian Hong frowned, his mind was peeling back at these clues.

"I didn't ...... Didn't say anything? Zhang Haoming was a little overwhelmed by Nian Hong's sudden question, and stammered,

"That's not right! You also said a word!" Nian Hong said affirmatively.

"Oh! Criminology! Zhang Haoming replied quickly.

"No need to check! I know who the suspect is! Call everyone in your detachment to follow me to Bac Giang University immediately. The suspect is Chen Peng, a professor of criminal psychology at Bac Gang University. As soon as Nian Hong grabbed the phone on his desk, he hurriedly ran out.

Zhang Haoming ran out with Nian Hong and shouted through the walkie-talkie in his hand.

******

January 5, 2016 is the last day of classes before the winter vacation of Bac Gang University, and tomorrow the whole school will start the winter vacation.

But just when all the teachers and students don't know if they can live without fear during this winter vacation, when will the murderer of the serial corpse killing case be caught. Several vehicles did not have flashing alarms. The police car with the lights flew into the campus of Bac Gang University and drove straight to the teaching building of the Department of Psychology.

"Director, I just contacted the principal of the school and the director of the academic affairs office, and now Chen Peng is taking classes in the classroom of the teaching building of the Department of Psychology." Zhang Haoming sat in the co-pilot's seat, turned sideways and said to Nian Hong behind him.

"Is SWAT in place?" Nian Hong asked.

"I was in place five minutes ago, but the view from the windows of the school building was not good, and the SWAT snipers did not find a suitable sniper position." Zhang Haoming said.

"Director, Xiao Nian is also in Chen Peng's class, what should we do?" Zhang Haoming continued to ask.

"Leave him alone, notify the special police to block the exits of the teaching building as quickly as possible, and then storm Chen Peng's classroom and catch him." The mobile phone that Nian Hong grabbed in his hand, Nian Yu's phone number stayed on the dial panel, but it was not dialed.

"But the director, he ...... in the young year" Zhang Haoming's words were interrupted by Nian Hong before he finished speaking.

"Nothing, do what I command, understand?" Nian Hong roared in a low voice.

Five minutes later, while the students in the classroom were still discussing the motive of the murderer in the corpse shredding case with Chen Peng, a professor of criminal psychology standing at the podium, the front and back doors of the lecture hall were smashed open by the special police at the same time.

A white light flashed.

Accompanied by flashbangs and screams from students, more than a dozen heavily armed SWAT officers immediately re-entered the lecture hall.

All the students in the classroom were stunned by this sudden change, many students squatted on the ground with their eyes covered and screamed, only Chen Peng stood motionless by the podium, smiling and waiting for everything that was about to happen, as if he had expected this moment.

Chen Peng did not make any resistance, did not even say a word, but was subdued without the slightest resistance under the guns of the special police.

11.11 Chen Peng, a suspect in a serial corpse mutilation murder case, was arrested.

Nian Yu looked at his father and his policemen, and took Chen Peng, a professor of criminal psychology who was still teaching him just now, out of the lecture hall. Nian Yu's head was blank, and the buzzing sound in his head after the flashbang exploded was endless.