Kai Clicquot carried Zeng Jin up the hill on his back and brought hot water for the captain to drink. But Zeng Jinzhao still felt a cold old drill into his legs. He smiled bitterly to himself, shouldn't he get old cold legs because of this.

Kaige picked up the black cloth, and couldn't understand why the captain insisted on finding the black cloth.

At this time, Wu Meng's four people came over - obviously they were pulling Gao Taiyang to leave. "Uncle policeman, let's take him away first. Gao Taiyang's mood is not very good. ”

"Go back. If anything, I'll call you. Kaige waved his hand, and then reminded: "There is one more thing to correct, don't call me uncle!" ”

Ouyang Jiankang trembled and helped Gao Taiyang to leave, and then turned around and reminded kindly: "You guys should go back early, it's still so cold, and your body is very important." ”

"Thank you." Zeng Jinchao drank hot water, and heard the kind reminders of others, and his heart warmed.

After watching these classmates leave, Zeng Jinchao also announced the end of the team, don't let your colleagues freeze.

"Look, Captain, there's a radio here." A man came over with a radio.

Zeng Jinchao disagreed, "What some careless people left behind, handed over to the management center here, and let them return it to the owner." ”

Kai Clicquot thought for a moment, "There is no small square here, who will dance here?" ”

"I don't think someone forgot to take it because the dishes inside were taken." It's also important for that colleague to stick to this thing.

"Where is it?" Zeng Jinchao tried to stand up, and felt that his feet could take steps.

"Under a low tree by the bridge." The colleague replied.

Now the team is starting to close, and so far, the evidence collected is the black cloth. As for this amplifier, sort of.

The next morning, when Zeng Jinchao got up, he felt that his feet were filled with lead, and he couldn't move, and it took a long time to move to the bedside. Only then did he notice that his feet were red, as if they had been burned.

But now the task is tight, so I can only endure the pain and put on my shoes and socks. After he washed up, he went downstairs to the clinic to prescribe some frostbite cream and apply it. Then I wanted to drive, but I couldn't step on the clutch, so I had to call a taxi.

When he arrived at the Public Security Bureau, Kaige was a little surprised to see him: "Captain, I thought you would ask for leave." Yesterday you soaked in cold water for at least fifteen minutes. ”

Zeng Jinchao moved slowly, sat on the sofa and thumped his legs, "I'm not dead yet-you must know that comfort is reserved for the dead, and I still have to continue to solve this serial murder case." ”

Kaige admired the captain's dedication. In the entire criminal investigation team, the captain is the hardest, not only to take the people under him to investigate, but also to withstand the pressure from the director and even the mayor.

Just like the day before yesterday, I spent most of the day in the city government, and I am afraid that I was tormented.

"What kind of eyes do you have?" Zeng Jinchao saw a glimmer in Kaige's eyes, "I'm just a good captain, this is the responsibility that should be done, there is nothing to be moved." ”

"Why don't you take a day off today?" Kaige rubbed his eyes, not letting the captain see the tears in his eyes.

"I'm here, and I can't spend my money in vain." Zeng Jinchao pretended to be stern, "When they go to work, they will be notified of a meeting and assigned tasks." ”

Kaige knew that he couldn't persuade him, so he nodded in agreement.

Half an hour later, Zeng Jinchao sat down in a chair behind the conference table - he used to like to stand and talk, and he felt sonorous and powerful, and he smelled sick when he sat down. But today, I really can't stand still.

"Everyone knows about yesterday's situation, there was a fourth murder, which really slapped our criminal police. So far, we haven't found a single suspect, let alone a murderer. Zeng's eyes were as sharp as ever, he looked at everyone, and then said: "The disadvantage of serial murders is that if you find the deceased and have a grudge against those people, you can clearly identify the suspect. There is no such thing as a random homicide, and the greater the motive, the greater the suspicion. ”

He divided the members into three groups: "The first group closely investigates Yong Yule, Yu Jiaao, and Gao Shanqing, who died last night, and investigates who they are currently associating with. The second group, to investigate what happened to these three people in 1996 and 1997, the task of this group is huge, fifteen years have passed, and the personnel changes are too great. The third team investigates last night's murder, including urging the autopsy report and probing cameras along the road. ”

Then the comrades immediately began to act.

Zeng Jinchao thumped his legs and smiled bitterly. This time I was a little injured.

Although these criminal police officers are busy solving the case, the citizens do not seem to appreciate it, and you can see how powerful the accusation is by looking at the comments on the Internet. Everyone in Narcissus City is in danger, afraid that they will be murdered, like a sharp sword hanging above their heads, and they don't know when the sword will fall.

Jiang Jiang Mu found a CD that was still running at the scene of the accident. He placed the disc on his laptop, opened it and browsed it, only to find that there was only an audio file inside.

Using Goldwave audio processing software, Jiangxi Mu found the clues. The whole music is 30 minutes long, and there is only one peak in the sound frequency.

He frowned, moved the mouse over the crest of the wave, and clicked play.

"Bang-"

Suddenly, there was a very crisp gunshot in the room.

Jiangxi Mu instinctively looked around, but did not find any small holes caused by bullets.

Unless, that's what the sound is coming from this music. He moved the mouse over the crest of the wave again and played.

"Bang-"

There was another very crisp gunshot in the room.

That's right, it's the music that came from it! Why is this strange disc only this file, this sound?

The gunfire occurred at 12:00.

Jiangxi Mu suddenly thought, could this gunshot be the sound he heard last night? What everyone thought was gunfire was actually the sound of the disc being released.

He quickly took out his mobile phone and carefully thought about the time when he heard the gunshots last night, which should be 8:45, and according to the sound of the audio peak, he moved forward 12 minutes, which was 8:30.

At that time, he and these roommates saw Gao Taiyang's father. He wears a gray puffer coat, a peaked cap to protect him from the cold, and sunglasses when his face is turned sideways.

Wait a minute, if the sound is coming from the disc here, then what about the corpse that everyone has seen.

The blood in the chest of the corpse was radiating and should have been caused by a gun.

Jiang Xi Mu crossed his hands in front of his chest, thinking about this ironic phenomenon. The gunshots were fired from the discs, and the people were killed by the guns. The murderer was so stupid that he chose the gun, and his own gun did not make a sound, but let the disc speak for him.

It's incredible to think about.

Although it is incredible, I have to admit one sentence - existence is reasonable. found an explanation, all the irrationality is a ghost.

Jiangxi Muluo listed some possible reasons.

The first is to cause riots. The killer used a silencer to make the sound of the pistol smaller. But in order to prevent the people on the side from discovering it, the disc made a sound to scare them away, and at the same time, the murderer himself finished the murder and left with the frightened citizens.

The second is to cover up the real gunshots. The distance between the loudspeaker and the stadium where the crime occurred was nearly 100 meters, causing a distance error and interfering with the police.

The third is to confuse the real with the false. The murderer had already killed someone, but in order to cover up the time of the crime, he specially used a disc to release the sound of gunshots.

These three should explain such an unbelievable phenomenon.

Then the next step is to rule out the completely impossible things one by one. The first is too absolute to guarantee that every citizen will not see it, and even if they are lucky enough that no one finds out about the murder, then how can the locked iron door be explained. If you escape with the citizens, you must leave the scene within a minute. However, the killer drew the basketball court line at the scene and locked the door. For a minute, it will never be possible.

Second, the police have not yet arrived, so there is no need to show for the police. It is even more impossible if it is aimed at the citizens, so many people, when they hear the gunshots, they are confused, how can they judge the position rationally.

The third type - Jiangxi Mu thought for a long time and thought that it was most likely. After committing a crime, it is smartest to change the time of the crime, which can create a lot of alibi evidence.

Throughout the night, nothing was real, and the illusion they saw was too pervasive.

At this time, Gao Taiyang came back, threw his backpack on the table, and then leaned on the bed together. Lethargy, that's what he is now.

After his father was killed, Gao Taiyang was called to the police station to assist in the investigation. No matter what time it was, his face was covered with black clouds.

"What did you tell the police today?" Jiangxi Mu needs to know more information and not worry about the other party's pain.

didn't reply for a long time, Jiangxi Mu asked again, but the tone was not appropriate, adding another coldness.

Finally, there was a roar: "Don't you bother, why do you ask so much!" ”

Jiangxi Mu replied coldly: "To help you find the murderer, you just need to answer the content of my conversation with the police." ”

Gao Taiyang suddenly stood up and said angrily: "They have made no progress, what can you do!" You got out of the house last night, are you such a brother? ”

After repeated questioning, Jiangxi Mu just shrugged his shoulders and turned the notebook around, "Listen to it yourself." "Mouse plays that gunshot

"Bang-" Gunshots rang out in the room for the third time.

Gao Taiyang didn't understand at all, but it was better to say that sadness covered up the rationality that should be, and his mouth was full of artillery fire, "Why are you making gunshots, you are crazy!" ”

Jiangxi Mu stepped down from the upper bunk and slowly came to Gao Taiyang, looking at him with eyes as cold as the moon.

A fist shadow was lightning fast.

Gao Taiyang tilted his head to the side and covered his mouth.

"Is it a man to learn to bark a mad dog? You've been lucky for at least fifteen years compared to me. If you have the energy to yell and be sad, you might as well spend more time sorting out the case. Jiang Xi Mu crossed his hands in front of his chest, and his cold tone was full of disdain. In his eyes, although Gao Taiyang is as tall as a mountain, he is a coward who does not know how to take responsibility and can only shout.