The explosion occurred in a studio in an office building in the central business district of Ningzhou City, and the explosion was located in the central air conditioning vent in the corner of the studio's ceiling, and the explosion was caused by a Motorola mobile phone as a detonation. device of artificial bombs.

The explosion has caused two deaths and two injuries, an employee near the vent died on the spot, an employee died after being taken to the hospital after rescue efforts failed, and the two injured are not out of danger and are being treated in the ICU.

The bombing case was the first time that the Serious Crime Squad had encountered it since its establishment, and the time of the explosion happened to be a sensitive date on the seventh anniversary of the conclusion of the 18 March bombing.

After questioning and investigating the two survivors of this case, we did not get any valuable clues, but according to the police investigation, it is unlikely that the bombing was caused by jealousy and revenge from the same company and their personal feud.

Officer Wang collected the personal identification information of the two survivors, asked them to sign the collated records, and then let them go home, but Officer Wang still asked the criminal police team to keep a close eye on the two and investigate them until the two were completely cleared of suspicion.

I left the interrogation room and returned to the office of the Serious Crime Team, and Lin Zifan and Xue Hang also returned from investigation. Unfortunately, they did not find any suspicious persons in the printing and sales channels of the newspaper today.

Just when we were at a loss, Li Meng brought us an important clue.

She had found the source of the newspaper from the scraps of the newspaper she had collected at the scene of the crime.

"This newspaper is Ningzhou Daily, which was published seven years ago on February 16, and the front-page news is a piece of news attacking online games, which is the same newspaper found at the scene of the crime." Li Meng said lightly.

Through the internal system of the Public Security Bureau, she had retrieved the original version of the newspaper. Because each newspaper has a unique content and edition number, there is no possibility that two newspapers will have similar content.

"A newspaper from seven years ago?"

I frowned suddenly, walked to Li Meng's side, propped up the table with my hand, and looked at the contents of the newspaper on the computer screen seriously.

Newspapers are printed publications that are regularly distributed to the public, mainly publishing news and commentary on current affairs, and are important carriers of mass communication, which have the function of reflecting and guiding public opinion.

The most important value of newspapers is that they are time-sensitive, and in that era when network information is not developed, it is an important way for the people to obtain real-time news.

Because of this, newspapers are often only time-sensitive for one day.

"That's right, it's the newspaper from seven years ago." Li Meng nodded and said seriously.

"But seven years ago, no one read the newspapers...... "The more I thought about it, the more wrong it became, and I suddenly muttered.

Seven years ago, the development of online information was already very rapid, and newspapers were also the product of a long time ago, why did the murderer use newspapers to fill man-made bombs?

I thought about it for a long time, but I still think that this bomb-making murderer has something to do with newspapers, and maybe he can really come into contact with newspapers often in his life.

Moreover, the timing of the publication of this newspaper is really a little delicate.

"The conclusion of the case of the catastrophic explosion seven years ago was on March 18, which means that the public security organs have completed all the investigation of this case, arrested all the suspects, and at the same time sorted out the materials and filed a public prosecution with the court organs. And the newspaper was published shortly before the closing date...... "I closed my eyes, gently rubbed my temples, and fell into deep thought.

Li Meng turned to the side, looked at my contemplative appearance in a daze, and couldn't help laughing, she said something a little strange to me: "I feel like you've been getting stupid lately." ”

Hearing her words, I raised my eyelids slightly, looked at her in some surprise, and asked very suspiciously: "Stupid?" ”

Li Meng nodded seriously, put his arm on the table, supported his side face with his right hand, looked at me affectionately, and said quietly: "I see that you are used to cases with too few clues, and now that there are more clues, you won't think about it." ”

Listening to her somewhat mocking words, I still didn't understand whether I had missed some important clues.

I looked at her even more puzzled, and my brain began to rac, wondering what I was missing.

Looking at Li Meng's starry eyes, and her expression with a mysterious smile.

I looked at the computer screen again, and suddenly slapped the face sharply and said in a loud voice a conclusion that could almost upend the whole case: "So, this is a bomb that was made seven years ago!" ”

Newspapers are time-sensitive, and even in the era when newspapers were already obsolete, it was relatively difficult to find one.

Then, seven years later, it is almost impossible to find a newspaper that was printed and distributed by Ningzhou Daily seven years ago.

In addition, the bomb maker used a very old Motorola style mobile phone, which also shows that the bomb was made very long.

And seven years ago, when the police arrested "Bomberman" Meng Bochao, they found a large number of old Nokia and Motorola mobile phones used to make bombs in his home. Mr. Zhang Fengtian, a "bomb disposal expert," also said today that this way of making bombs is outdated......

Therefore, this bomb should have been made by "Bomberman" Meng Bochao seven years ago.

Li Meng nodded, put away his smile, gave me a particularly serious look, and then said slowly: "So, the bomb in this explosion is very likely to be a bomb left over from the serial bombing seven years ago, and today, seven years later, because of a sudden factor, the bomb was detonated." ”

This conclusion not only overturns the entire case, but also overturns all the current direction of our investigation.

If this conclusion is true, then the original purpose of the bomb was not to blow up the small studio of six people, but should have been the previous owner of the studio.

Therefore, the direction of investigating the murderer through the printing and sales channels of newspapers can be abandoned.

In the same way, the direction of investigation through the social relations of this small studio of six people can also be abandoned.

At present, all the clues that the police have have been abandoned, which means that we have to start investigating the case from scratch, and we are faced with no clues.

However, this is the rhythm that our Serious Crime Unit is familiar with.

Although the situation has taken a turn for the worse, I am not panicking, because we still have a clue, and that is the criminals of the March 18 explosion seven years ago.

Since this bomb was made seven years ago, it is very likely that it was made by "Bomberman" Meng Bochao.

Meng Bochao was sentenced to life imprisonment after his arrest and should now serve his sentence in a prison.

I immediately found the staff of the archives department, looked through the files of the megalopolis explosion seven years ago, and finally locked up Meng Bochao's prison sentence, which was in Ningzhou City.

Immediately afterwards, I called the Ningzhou City Prison again, explained the situation to the person in charge of the prison management, and submitted an application to meet with Meng Bochao.

After a meeting and discussion with the prison authorities, they agreed to the application of the Ningzhou City Police to meet with Meng Bochao tomorrow morning.