As soon as the words were spoken, Zhong Shuang tilted his head and stared at Jiang An.

He stood there, frozen, not moving a muscle.

Only his eyeballs were constantly moving, glancing back and forth at the four people in front of him.

At this moment, it wasn't just Jiang An; even Li Jian and Wan could sense that something was off.

Originally, Wan was full of anger, with no place to vent it.

This was a good opportunity.

Wan hurriedly put down the interrogation record pen in his hand and walked over quickly.

He shouted loudly, "What's wrong? Feeling guilty, are we?"

"You escaped last time at your house door, but this time you won't get away, will you?"

As soon as the words were out, Chen He urged, "Hurry up and strip."

"Or do you want us to help you strip?"

"I don't believe that we, four men, can't get your pants off."

After 2 minutes of silence, Zhong Shuang remained unmoved, only his eyes swaying left and right, as if he was considering his next move.

Chen He urged again, "Hurry up or I'll do it myself."

Immediately, Zhong Shuang said, "No! No! No! I'll do it myself."

"A man takes off his own pants."

Soon, Zhong Shuang bent down and took off his pants, placing them on the ground beside him.

Jiang An walked over and squatted down to observe.

Sure enough, he could see two roundish skin burns on the right ankle of the deceased.

Moreover, these skin burns had just blistered, and locally, there was a noticeable redness.

With his forensic expertise, Jiang An understood that these burns must have formed within the last 48 hours.

In his mind, he connected it to the two holes at the bottom of the right pant leg of the black trousers and could basically determine that this happened during Zhong Shuang's act of arson.

However, just as he was about to stand up, Jiang An suddenly noticed something unusual about the skin on Zhong Shuang's thigh.

Focusing his gaze, he saw three linear skin abrasions on the inside of the right thigh.

Compared to the burns on the ankle, Jiang An was more concerned about the three abrasions on the inside thigh.

The inner thigh is a concealed area of the body and generally wouldn't incur injury.

Unless there was some straddling action, an injury would not typically form on the thigh.

Similar to riding a motorcycle or bicycle, an object between the thighs would cause such an injury.

Soon, Jiang An recalled the scene of the investigation at the Minghao Clothing Factory.

The suspect had entered the central scene by climbing through a window, which included a straddling action.

With a shift in thought, Jiang An suddenly deduced that this abrasion was likely formed when Zhong Shuang crossed the window.

Moreover, judging by the timing of when this skin abrasion formed, it completely aligns with the timeframe of the crime.

Following this line of thought further.

The abrasion on Zhong Shuang's inner thigh reached the dermal layer, where capillaries are abundant.

Typically, when the skin abrasion reaches the dermis, there is likely to be some localized bleeding.

Thus, the sharp object that caused the skin abrasion might have left a trace of blood.

With this realization, Jiang An felt a sudden clarity.

It was like a glimmer of light in a dark place.

Compared to the burns on the ankle, the abrasions on the inner thigh have greater evidentiary value, possibly leaving Zhong Shuang's blood and skin flakes on the objects at the scene.

If blood and skin flakes are there, they could serve as compelling evidence of Zhong Shuang climbing the window.

Even if he denies it later, the evidence would allow for prosecution without relying on his confession.

After observing for 2 minutes, Jiang An stood up.

Compared to before, Jiang An was now more confident and resolute.

His eyes were bright as he stared at Zhong Shuang, "Do you still need to argue with such obvious trace evidence on your body?"

Zhong Shuang turned his head, glanced at him, and scoffed, "Officer, you look young, must be new to the force, right?"

"You seem older than me, but you can't scare your brother like this."

"Ha! Evidence of murder on me?"

"What a joke!"

Seeing that he was still arrogant, Chen He glanced at his ankle.

He said, "You still want to quibble?"

"The burn on your ankle formed during the arson at the Crime Scene."

Upon hearing this, Li Jian and Wan instantly understood.

It turned out that their previous forensic checks were primarily to find the burns on Zhong Shuang.

Li Jian was very pleased with this important discovery.

This piece of evidence, though not directly proving his involvement in murder and arson.

At the very least, it indirectly showed his connection to the fire.

In Li Jian's criminal investigation career, cases with direct evidence of crime were rare.

Unless a case had surveillance and eyewitnesses, it generally required multiple pieces of corroborative evidence.

Just now, Li Jian and Wan were still frustrated and overwhelmed.

Now, it seemed as if a ray of sunlight had broken through the clouds upon them.

Li Jian's furrowed brows slightly relaxed.

He stood up and walked over, saying, "Zhong Shuang, I advise you to be honest."

"Confession leads to leniency, resistance leads to severity."

"Your defense has no meaning."

After a slight pause, Li Jian continued, "Jiangcheng has hundreds of thousands of people, why did we find you? Because we already have strong evidence in our hands."

Finally, Li Jian said in a deep voice, "The burn on your body is one of those pieces of evidence."

After Li Jian finished speaking, Zhong Shuang lowered his head to look at his right ankle.

He said, "Does having a burn mean I'm the killer?"

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