A perfect crime? To me, it's full of flaws!

"Succinylcholine chloride"

Everyone looked in the direction of the voice and saw that it was the female forensic doctor with an "invincible" figure, Sister Yan.

Seeing the puzzled looks from everyone, forensic doctor Yan pushed up his glasses and prepared to continue explaining.

"Succinylcholine chloride, commonly known as succinylcholine."

"After intravenous or intramuscular injection, all muscles in the body will be paralyzed within 30 seconds, making it impossible to move. But the most important thing is that although the whole body is paralyzed, the patient is conscious, thinks normally, and still has all bodily sensations, including pain."

The air in the conference room seemed to freeze.

Conscious but unable to move, watching helplessly as you are tortured to death... this is a hundred times more terrifying than death outright!

"This is a niche drug that is strictly controlled," forensic doctor Yan added. "It is generally only used in the operating rooms of large hospitals."

"Record it!" Fan Liang's voice was grim. "Immediately investigate all hospitals in the city that use this drug, and go back five years to check their usage records for any lost or abnormal consumption! At the same time, trace the supplier, and verify the outbound records with the hospitals' usage records to see if the data matches!"

After waiting a short while and seeing that the recording was complete, Fan Liang pressed the play button again.

"Let's...continue watching the video."

The scene continues.

Just as Wang Linlin's blood stained the armrests of the chair, another figure burst into the frame from off-camera.

This figure was noticeably smaller than the previous male assailant, and judging from the outline, it should be a woman.

Although the video was silent, every movement she made was filled with explosive anger.

She rushed forward and slapped Wang Linlin hard across the face several times, left and right. Wang Linlin's head swayed weakly from side to side with her movements, her eyes filled with silent pleading and extreme fear.

But that was clearly not enough to vent my anger.

The female assailant began to frantically punch Wang Linlin's body. Finally, she dragged a toolbox into the frame and took out a small, handheld chainsaw!

"Buzz..."

Although no sound could be heard, everyone seemed to hear the piercing sound of the motor starting up.

Inside the meeting room, several young female police officers instinctively covered their mouths, their faces turning pale.

In Wang Linlin's terrified gaze, the female killer grabbed her right hand and started the chainsaw without hesitation.

The scene was bloody and brutal.

Many veteran detectives instinctively turned their heads away.

What's even more chilling is that after sawing off Wang Linlin's hand, the murderer seemed afraid that she would die immediately from blood loss and excruciating pain, so he actually took out a bandage to stop the bleeding.

Then, she took out a syringe and injected the liquid inside into Wang Linlin's carotid artery.

"It's adrenaline," the forensic doctor Yan's voice rang out again. "The murderer didn't want her to pass out; he wanted her to stay conscious throughout and experience all of this."

The video is still playing.

After doing all this, the female killer roughly snatched the Western-style knife from her male accomplice and pointed it at Wang Linlin's chest.

Instead of acting immediately, she pried open Wang Linlin's already drooping eyelids, twisted her neck, and forced her to face the camera.

It's as if it's saying: Look carefully, look carefully at how you died.

Then, the blade fell.

The video ends abruptly there.

The screen went dark, but the bloody scene was etched into everyone's mind.

"That's all the video content is." Fan Liang's voice was extremely hoarse. "It's clear that the murderer tortured the victim to death using extremely cruel methods. Based on this, it must have been a deep-seated hatred."

As soon as he finished speaking, an old detective couldn't help but stand up, his face full of confusion and frustration.

"Captain! We've thoroughly investigated all of Wang Linlin's social connections! She's just an ordinary housewife, gentle in nature, and has never made enemies with anyone! Her husband also..."

Before he could finish speaking, Fan Liang raised his hand, gesturing for him to sit down.

"I know, let's look at this first," Fan Liang said, then he moved the mouse and the projected image changed.

The screen displayed several photos of the scene, marked with red circles.

Qi Feng raised an eyebrow. "Oh, it's my turn?"

"I think it would be better if Comrade Qi Feng explained these photos and the clues hidden behind them to everyone." Fan Liang's voice was not loud, but it clearly carried throughout the entire conference room. His gaze, with a hint of barely perceptible appreciation, was cast toward Qi Feng in the corner.

Swish!

In an instant, everyone's eyes were focused on Qi Feng.

"Well then, I'll give you a brief explanation." Qi Feng walked to Fan Liang's side, took the mouse, and zoomed in on the first photo.

"Look, everyone, this is a photo of the scene where the first victim, Zhou Yun, was murdered."

He zoomed in further, focusing the image on the red circle he had drawn.

It was a trophy that had been kicked to the corner of the wall.

As the image became clearer, a line of small print on the trophy base suddenly appeared before everyone's eyes:

[Third Prize, 7th Long-Distance Running Games, A City Maternal and Child Health Hospital]

"A maternal and child health hospital?" someone whispered.

Qi Feng offered no explanation and immediately switched to the next circled photo, which was the study of the fourth victim, Wang Linlin.

"Look at this next picture. The deceased, Wang Linlin, was a housewife, but her bookshelf contained professional books such as 'Atlas of Human Anatomy' and 'Pathology.' Could this indirectly prove that Wang Linlin previously studied medicine, or worked in a medical-related field?"

This time, he didn't switch immediately, but continued speaking:

"The second victim, Zhang Kai, was a pharmaceutical representative, which is also closely related to the medical industry."

"Now, of the four deceased, the first, second, and fourth deaths are all related to medical care."

"Only the third deceased, Gou Qing, was a lawyer. There is no apparent connection at the moment, but whether he is related to medical or pharmaceutical matters needs to be investigated and confirmed."

Qi Feng paused for a moment, then continued.

"However, three out of the four people have already connected with the field of 'medicine'."

"I don't think this is a coincidence!"

He spoke the last five words with absolute certainty.

The entire conference room was completely silent.

The old detective who had raised the question earlier stood there with his mouth agape, unable to close it for a long time.

Xia Lan felt a burning sensation on her face, as if she had been slapped from a distance.

Fan Liang slammed his hand on the table, stood up, and his eyes gleamed.

"First team, second team! Change direction immediately! Investigate all the victims' social relationships and professional history over the past fifteen years! Pay special attention to all information related to medical care! Dig deep, dig up every connection between them!"

"If we find what they have in common, we can find their common enemy! And then the case can be solved!"

Fan Liang's voice trembled with excitement.

The members of the task force also shook off their previous dejection, their fighting spirit rekindled, and they all stood up to accept their orders.

Just as everyone was about to leave the meeting, Qi Feng, who had already returned the mouse to Fan Liang and was about to slip back to his seat to catch up on sleep, seemed to suddenly remember something and raised his hand.

"Um... I'd like to add something."

She stopped moving again and looked at him.

"If my deduction is correct, then I suggest that we focus our investigation on... all the major medical accidents that have occurred in this city within the last fifteen years."

"This could very well be the trigger for all of this."