Police officer Tao Wutan had just rushed to the door.

"Father!"

He was horrified! "Teacher Tao!"

Plop! The notebook in the hands of the young Mu Lie fell to the ground, and he was in great shock! The other students who came with him were completely shocked by this scene.

They gathered at the door, not daring to enter. Many people did not dare to look directly at the scene. Many girls burst into tears out of fear and grief.

Police officer Tao Wutan rushed into the house with tears streaming down his face, but as an experienced criminal investigator, he tried hard to overcome himself and did not touch his father's body.

His body was shaking, and he growled, "Don't come in, call the police!"

No one saw it.

At this moment, Brother Liu's right eye was flashing brightly.

He was frantically mobilizing the surveillance cameras around him, including the facilities on campus, the nearby Gemini Sky Eyes, and all the Gemini devices within a 10,000-meter range! Countless camera images and countless scattered audios flashed through Liu Di's mind.

Every angle, every corner! He even mobilized the street view satellite in space!

That's right.

What people suspect, that our lives are monitored by various electronic devices, is actually true!

But he is Brother Liu, and he will not invade other people's privacy at will.

Unless someone crossed the red line in his heart, just like now, someone actually killed Professor Tao right under his nose! The next moment.

Countless monitoring results are brought together.

Brother Liu was stunned!

There are no suspicious persons, no one has approached this office, and there is no murderer!!! Liu Di's eyes trembled.

This is impossible.

The next moment, Liu Di's eyes were filled with smoke of various colors, including the signal tower and the twin watches on the wrists of the students behind him. The "Molecular Future" module in it was activated! According to various molecular trends, it began to view the hidden details.

But unfortunately.

Everything is normal.

There is nothing unusual.

In the previous 24 hours, no one in the entire Haishi City considered this office as their destination!

Taking into account all of Professor Tao's recent movements, no one is following him, nor is there any shady deal going on. Apart from his academic research, he has not been involved in any strange incidents.

From now on, Professor Tao will never appear in this office again.

All trends indicate that the murderer is invisible!

And Professor Tao had no reason to be killed! What's going on?

Two scenes kept replaying in Liu Di’s mind.

Professor Tao was very tired during the break and walked slowly back to his office - unlocking the door, entering the room, and closing the door.

Next screen.

The girl who came to call Professor Tao - ran, opened the door, observed, screamed, and fell to the ground in fright.

There is nothing else.

The middle is exactly 15 minutes and 45 seconds.

Brother Liu glanced around the room. Professor Tao was a frugal person. There was no surveillance equipment in the room. Apart from the desk lamp, there was not even a second electronic device!

The office was also converted from a warehouse and it doesn’t even have windows!

15 minutes and 45 seconds, no data in the room! Liu Di caught a glimpse of the old-fashioned mobile phone in Professor Tao's pocket and hacked into it instantly.

All mobile phones have a hidden function that automatically turns on the microphone at intervals to eavesdrop on 8-20 seconds of audio.

“Zheng!”

“Plop!”

Brother Liu only heard these two sounds, one was like a sharp blade being drawn from its sheath, and the other was the sound of Professor Tao falling down.

Brother Liu's teeth were chattering.

Who is it?

What on earth happened in this house?

But police officer Tao Wutian was a little emotional at this time, "My father taught people all his life and almost never argued with anyone. Who murdered him!"

Brother Liu had a grim expression on his face as he slowly walked into the house, constantly recording and analyzing the scenes inside.

Blue circles, lines, and rulers form within the field of vision.

"There is no possibility of setting up a killing device here."

There is no mistake in the poem, post, content, and read the book on 6, 9, and bar!

Liu Di looked in the direction where Professor Tao fell. "There is a wall behind him, so there is no possibility of long-range shooting."

"Please stop and don't destroy the scene anymore!"

Tao Wutian looked at Brother Liu and shouted to the outside of the door, "Students, don't look at them either. Respect the deceased!"

Liu Di's body also paused slightly when he saw Tao Wutan in tears with bloodshot eyes.

He didn't say anything more, turned around and walked to the corridor, found a bench nearby, sat down slowly, and then closed his eyes.

His consciousness entered the long river of time, and his quantum body on the broken bridge suddenly started up.

He wants to find Professor Tao's "information soul" and have a face-to-face conversation with the deceased! In deep space.

The Grim Reaper walked slowly with a scythe on his shoulder, but then the blue figure came flying in the air.

The Grim Reaper had a complicated expression and was about to speak when the blue light stretched out its hand to stop him.

Brother Liu stared closely at the half-real and half-illusory old man and whispered, "Professor Tao?"

No one answered.

"Professor Tao?"

Brother Liu raised his voice, but saw that the old man had no reaction and his eyes were dull.

But the God of Death swallowed his saliva, took out a diary from his arms, and read it seriously: "According to your quantum physics system, this old man's mental power is too weak and he has already lost his self-awareness."

Brother Liu frowned.

Then a Möbius strip was laid out under Professor Tao's feet.

However, Professor Tao's body became more illusory, passed through the Möbius strip, and continued to run forward.

Brother Liu was slightly startled! Death closed the diary and shook his head, saying, "Some people's karma cannot be changed."

Brother Liu slowly turned his head and looked at the Grim Reaper.

The God of Death coughed dryly, "It is obvious that there is a god higher than you who determined the cause and effect of this old man."

Brother Liu's eyes flickered.

But the God of Death sighed and said, "I have received so many dead souls, more than half of them died unjustly, and almost all of them have not completed their missions. Since they cannot survive, the most important thing for the living is to find the murderer, avenge him, and redress his injustice."

But Brother Liu remained silent.

He bowed deeply towards Professor Tao's back, and then flew away.

The Grim Reaper took off his hood, shivered and wiped the cold sweat off his forehead, feeling relieved.

That was a close call.