Solve the case and become stronger

In accordance with Jiang Yi's request, the police officers of the technical group copied the video surveillance on the day of Wu Biao's murder, and also did corresponding technical processing, intercepted the valuable part of the moment, and put it in another video file separately.

In order to save time, Jiang Yi directly chose to watch the video processed by the technical team first.

The video is divided into two moments, which are very short, and they only add up to a dozen seconds.

Jiang Yi stared carefully at the screen in front of him, and then a familiar picture came into view.

It's still that black Santana ride-hailing car!

The murderer is obviously very familiar with the situation at the foot of Longhu Mountain, and every time he drives up the mountain or leaves, he chooses to avoid the sight of the surveillance as much as possible, so what can be seen in the surveillance is still only a small section of the body.

Jiang Yi glanced at the time in the upper right corner, the time when the vehicle entered the mountain was around eleven o'clock in the evening, and the time to leave the foot of the mountain was at two o'clock in the morning.

This is completely consistent with the time when Wu Biao was killed.

The more than ten seconds of video intercepted by the technical team completely grasped the key point, so Jiang Yi did not choose to watch the day's monitoring in its entirety for the time being.

He opened another recording file and clicked play.

A noisy sound sounded, and all kinds of electricity and various noises were constantly intertwined, which seemed a little harsh.

However, Wu Biao's recording equipment and environment were not ideal at that time, and the deceased was also damaged in the process of fleeing and running, and the memory card inside was missing data, so noise was inevitable.

After patiently listening to a cacophony of cacophonies, human voices began to appear.

However, these voices are not coherent, and the dialogue between Wu Biao and the murderer is not very smooth, so they are all intercepted paragraph by paragraph.

"What do you want? Anything is negotiable...... Don't mess around......"

Although the timbre has changed, accompanied by various noises, from the tone and content of the speech, Jiang Yi immediately judged that this was Wu Biao's voice.

With a few seconds of screeching electricity, an extremely cold voice sounded.

"I just want your life. "

Due to the various noises and timbre changes, the murderer's voice sounded very strange, and Jiang Yi did not hear any valuable clues for the time being.

He continued to listen to the recording, followed by a few staccato snippets of sound and the sound of the deceased panting loudly, but none of them offered anything of value.

Due to corruption of the memory card, there is a large loss of data and the recordings are lost for a long time later.

Jiang Yi glanced at the progress bar of the recording, and it was almost close.

At the same time, the sound of hands is heard again in the recording.

"Why didn't you lend a helping hand to my daughter back then, why didn't you dissuade her downstairs from jumping off the building! Even if one of you tried to help persuade her, maybe she wouldn't have killed herself! You all deserve to die!"

There was a special harsh sound in the middle, but it was too noisy for Jiang Yi to tell what it was.

Wu Biao didn't respond at the time, only his constant panting sound could be heard in the recording, obviously he was very seriously injured at that time, dying, and had no strength to answer the murderer.

"Heaven is a good reincarnation, when you saw death and couldn't save it, you should have thought that there would be such a day, go to hell to repent!"

As this sentence ended, the recording file was also completely played.

According to this recording, it has been completely determined that the murderer is Zhang Lanlan's father, Zhang Xiongan.

There is basically no problem with the previous analysis, Zhang Xiongan has always been dependent on his daughter Zhang Lanlan, and after his daughter committed suicide, he transferred all his anger to the witnesses at the time.

Jiang Yi listened to the recording again, but the sound was too noisy, and he still couldn't hear any clues.

He turned his head and glanced around the office for a while, Han Rou was not in the office at the moment.

With a creak, the office door was pushed open, and Han Rou returned to the office with some materials.

"You've come just in time!"

Seeing Han Rou in front of him, Jiang Yi showed a touch of joy on his face, and said, "I have a recording file here that needs you to process a wave of technology to remove the noise in the recording file as much as possible." "

"Okay, you can send the recording file to my computer. "

Han Rou put the documents in hand on the table, and then immediately came to her computer.

She opened the recording file that Jiang Yi had sent, and then quickly tapped the keyboard without saying a word.

Seeing Han Rou's serious work without words, Jiang Yi couldn't help but feel a little appreciative.

In terms of dedication, Han Rou definitely didn't say anything!

After dozens of minutes, Han Rou breathed a sigh of relief, and then stretched her body a little lazily.

"I've processed the recordings, and all kinds of noise have been removed. "

Han Rou picked up the headset connected to her computer and handed it to Jiang Yi on the side, "Use my headset to listen." "

Jiang Yi took the earphones handed by Han Rou and put them on, and then Han Rou's slender fingers tapped the keyboard gently, and the recording began to play again.

After Han Rou's technical processing, the sound quality of the recording has indeed become very clear, and all kinds of noise and current sound have been controlled to a minimum.

However, the memory card in the recorder is physically damaged, so even Han Rou cannot retrieve the lost recording data.

The voice of Wu Biao and the murderer re-entered Jiang Yi's ears through the earphones, and after hearing the murderer's voice, Jiang Yi's eyes suddenly lit up.

Familiar, incredibly familiar!

He listened to the recording again very seriously, and when he heard the last few words, the special harsh voice in the middle was also restored very clearly by Han Rou.

Hearing that voice, Jiang Yi couldn't help but shrink his pupils.

It was a familiar cough!

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