Super Time Detective

Friday, August 8, at 13:45 p.m.

Inside the Forensic Laboratory of Jincheng Judicial Police Bureau.

Ye Huairui was packing up his things in his office, planning to leave 10 minutes early.

Officer Huang had just left, and besides coming to get his identification report, he also brought a new development about Wang Yan's case.

In the past few days, the police searched up and down No. 26 Meihua Street, where Wang Yan lives, inside and out, and visited each house, and finally asked some useful clues.

Among them, there are two most important information.

First of all, on the 9th of this month, that is, the night when the typhoon hit, a male tenant of 602 on the sixth floor received a call from the security guard of the office building, saying that the typhoon had blown away a window pane in their company, and he could only hurry Go out and rush back to the company to help clean up the mess.

And when the tenant of 602 opened the anti-theft door and rushed into the storm, he glanced back in a strange way.

He saw a man approaching quickly from the opposite direction, pushing against the stainless steel door when the anti-theft door was about to close.

At that time, the tenant of 602 was only thinking about rushing back to the company, and didn't have time to think about it. Afterwards, when the police came to question him, he figured out something suspicious.

"The resident of 602 said that he has lived at No. 26 Meihua Street for three years and has never seen that man."

That's what Police Officer Huang told Ye Huairui.

"And we guess that his action to grab the anti-theft door was not because the door happened to open, but because he finally waited for someone to open the door for him."

Ye Huairui also agreed with Officer Huang's thoughts.

He asked about the person's appearance and the specific time when he entered No. 26 Meihua Street.

Officer Huang replied that according to the tenant's recollection of 602, the other party should be a tall man, at least over 1.8 meters.

The man was wearing a long black men's raincoat with the brim of the hat pulled down very low. In addition, he glanced briefly in the rain and only saw the general outline of a profile face, so it is difficult to recall the details clearly now.

But the time when the man entered the building, the tenant of 602 was able to say very specific and certain - about 45:[-] p.m. to [-]:[-] p.m.

According to Ye Huairui's speculation, the time of Wang Yan's death should be between 9:[-] and [-]:[-] on the night of the [-]th.

If this man was really the murderer of Wang Yan, then he entered No. 45 Meihua Street around 26:[-], which perfectly coincided with the time of the victim's death.

"The identity of the man in the black raincoat is still under investigation."

Officer Huang said:

"However, in addition to the tenants of 602, there are people who have proved that such a person did appear that night."

This is another important piece of information that he mentioned earlier.

On the night of the 9th, at about ten o’clock, a shop owner facing the street once saw a man in a black raincoat coming out of the apartment at No. 26 Meihua Street. His height and body shape matched the description of the 602 tenant.

"We also did a jigsaw portrait of the man."

As police officer Huang said, he took out his mobile phone and showed Ye Huairui the black and white portrait they put together.

It was an ordinary-looking young man with a thin face, long eyes and thin lips.Generally speaking, it is a very common feature among oriental men, and three or five of them can be picked out of every ten men.

But that doesn't work either.

Except for those with special talents, it is difficult for most people to leave a very specific and deep impression on a stranger who only met once. The owner of the shop can describe a vague feature of the facial features, and he has a good memory.

"come on!"

When it came to the step of visiting and investigating, Ye Huairui couldn't help much.

He could only encourage Police Officer Huang, hoping that he would bring the murderer to justice as soon as possible.

After all, Ye Huairui also wanted to know why that man wanted to kill an old aunt who was over fifty years old.

After sending off Officer Huang, Ye Huairui planned to skip work.

He took half a day off in the afternoon and planned to go to the library of Jincheng University to look through old newspapers.

The library of Jincheng University is very large, which contains a large number of publications related to local history, including all the "Jincheng Evening News" issued from the first issue to last month.

As for why it is last month, it is because the library organizes, binds, numbers and archives newspapers on a monthly basis, and the newspapers of last month will not be put on the shelves until the end of the month at least.

The place to borrow old newspapers is at the end of the corridor on the north wing of the eighth floor of the library. The location is remote. Ye Huairui walked into the reading room and looked around. Except for the densely packed bookshelves, the room was empty and there was no one there.

In recent years, Jincheng University Library has been promoting electronic reading and paperless information. It has taken a lot of effort to scan old newspapers and publications with research value into PDF versions and upload them to the library server. Therefore, the newspapers in recent years are basically The online version can be found on the Internet, and those piles of old papers from earlier times have very few chances of being read by people.

It took Ye Huairui 10 minutes to find the 1982 Jincheng Evening News—they were on the top shelf so high that he had to climb a ladder to get to them.

Five minutes later, Ye Huairui climbed down the ladder holding the bound "Jincheng Evening News" in August 5, found a nearby table, and spread them out on top.

"call……"

Ye Huairui actually felt a little nervous.

He breathed a sigh of relief, calmed down a little, and then gently opened the stack of old newspapers that were inevitably discolored and brittle even though they were carefully preserved.

Soon, he found the missing person notice message signed by "Cong Zihe" in the newspaper on August 8.

The words of the message are not many, and the font is Song Er, which was popular at the time. It is crowded in the middle of various announcements, statements and statements that are full of the first page, and only occupies a small part of the border. It is really inconspicuous and easy to write. Let people ignore it in a blink of an eye.

The entire missing persons notice is as follows:

【Search notices

Wang Zuoxin, male, [-] years old, with dementia,

Can't understand human words, dark skin, thin.

Wearing a white vest, black pants, flat bottoms

cloth shoes.on August [-]th at

Junction of London Road and Taylor Street

lost.Those who know please contact the

Cong Zihe contacted.There must be heavy rewards.

Contact number: 235538

Paging: 1251044048]

"very good."

After successfully finding the notice, Ye Huairui breathed a sigh of relief and whispered softly:

"Next, it's time for the 'pigeon' to play."

The so-called "pigeon" in his mouth was a story he just heard from Yin Jiaming last night.

And of course Yin Jiaming learned this story from his second brother He Zhicong.

It all started with a chat between the two brothers a year ago.

At that time, He Zhicong had just returned from a business trip in Eastern Europe, and told his younger brother who had come to Cengfan about the results of his investigation. One of them was a few "pigeon telegrams" from World War II that were of great research value.

The so-called "pigeon telegram" is a form of encryption once used by the Confederate Army.

It consists of two seals, respectively referred to as "pigeon1" and "pigeon2".

They will be grandly displayed in front of the public.

These two "pigeons" may be a lyrical broadcast on the radio, a movie episode, a lipstick advertisement, or perhaps a star scandal that is not nutritious in the tabloids.

Regardless of whether it is "pigeon1" or "pigeon2", it is impossible to read any secret information from it when viewed alone, but if the two "pigeons" are put together, the code to decipher "pigeon2" can be obtained from "pigeon1". , get the intelligence hidden in the text.

At that time, Yin Jiaming heard it interesting, and curiously asked He Zhicong how this "second pigeon" could make people understand the secret message on the "first pigeon".

The well-informed Professor He took out a pen and paper, and took the textbook on the desk as an example to demonstrate the simplest "pigeon telegraph" to his brother.

Later, He Zhicong also told Yin Jiaming that "pigeon1" and "pigeon2" can actually be combined into the same "pigeon", but if the code and decoding are put together, the risk of being interpreted by the enemy will be greatly increased.

Since Professor He only mentioned the only clue to Yin Jiaming, the "Jincheng Evening News No. 16 missing person notice", then he must have crammed two "pigeons" into this brief article.

"Okay, let me try."

Ye Huairui opened the briefcase he was carrying, and took out a pen and paper from it.

In the example that He Zhicong gave Yin Jiaming, "pigeon1" is a short essay that can be seen everywhere, while "pigeon2" is a traditional password indicating code with the number of rows and columns marked.

When you want to interpret the message above "pigeon1", you only need to pick out a certain word in a certain line according to the row and column coordinates given by "pigeon2", and then connect them one by one to form a complete message.

However, the "two-in-one" advertisement published by Professor He on the "Jincheng Evening News" itself is very short, and in order not to arouse suspicion, it certainly cannot be like the real "Pigeon Telegram" with rich content. Cryptography knowledge to decorate two "pigeons".

The most important point is that Yin Jiaming didn't study cryptography, but if he made it a little more complicated, he would be stuck there in minutes, unable to decipher it at all.

Therefore, Ye Huairui has no doubt that He Zhicong will only use the simplest way to arrange this "pigeon telegram".

——Since Brother He thinks that Yin Jiaming can unlock the code, then he can definitely!

Ye Huairui thought confidently.

In order not to deface the newspaper, Ye Huairui first took a complete picture of the "Missing Person Notice" on the newspaper with his mobile phone, then closed the newspaper, put it aside, enlarged the writing on the screen, and carefully observed it line by line.