Finally, Jiang An said, "That's all my simple thoughts."

As soon as he finished speaking, Mr. Zhang smiled.

"Worthy of being an elite in the criminal investigation field."

"In just two minutes, you've thought of such detailed plans and countermeasures. I'm truly impressed."

Mr. He also stepped forward.

"Mr. Zhang, Comrade Jiang An is indeed very outstanding."

"Otherwise, he wouldn't have solved the case of the elderly couple's murder in Han City in just two days."

"Haha, exactly! That case was no simple affair."

"We heard their reports many times."

Finally, Mr. Zhang looked at Jiang An with admiration in his eyes.

"Truly a man of talent, with a promising future!"

Just then, Mr. Zhang's phone rang.

He glanced at the caller ID, it was Li Jian from the Jiangcheng Criminal Investigation Team.

"Hello!"

"Mr. Zhang, have Jiang An and his team arrived yet?"

Zhang Feng looked up at Jiang An.

"Not only have they arrived, but they've already made an impact!"

"Oh?"

On the other end of the line, Li Jian was puzzled yet slightly excited.

Receiving praise from the Chief was no small feat for the Criminal Investigation Brigade.

"Haha, the members Li Jian trains never fail to impress."

"Jiang An has already ignited the hope of solving this case."

"We were just praising him!"

Hearing this, Captain Li Jian was thrilled.

He said in a deep voice, "Being able to contribute to the Chief's case is also an honor for our Jiangcheng Criminal Investigation Team."

"These efforts won't be in vain, the solving of the case will surely be recognized and awarded."

Five minutes later, Jiang An, Zhang Yean, Wan, and the others put on masks, gloves, and shoe covers to begin examining the vehicle.

Mr. Zhang accompanied them throughout.

Jiang An opened the car door, bent down, and observed the traces inside the driver's cabin.

After a moment, he suddenly stopped what he was doing.

Zhang Feng asked, "What's up?"

"Any discoveries?"

Jiang An nodded, "There's a long black hair stuck in the windshield gap."

"A long black hair?"

Mr. Zhang also bent down to observe.

Following Jiang An's pointing direction, he saw it clearly.

Indeed, there was a long black hair, although it was slightly curled and overlapping.

Mr. Zhang said, "I'll get an evidence bag to collect this hair."

After collecting the hair, Jiang An lowered his head to examine the driver's seat.

Suddenly, he noticed something rectangular beneath the accelerator pedal.

"Senior Sister, please pass me a flashlight."

Immediately, Zhang Yean handed him a flashlight.

Under the strong beam, Jiang An saw clearly.

It was a cellphone.

Only the edges of the phone were slightly damaged.

Then, Jiang An reached out to pick up the phone.

Mr. Zhang glanced at it, "We didn't find a phone on her during the corpse examination."

"And I remember we found no remnants of a phone near the scene either."

Mr. He was delighted by this clue.

"This phone is very significant."

"We must promptly restore the phone's data to see if there are any key clues."

"Previously, we requested WeChat records from Penguin Company, but due to the time lapse, it was unavailable."

"Now that we've found her phone, we can further restore chat logs."

Receiving the phone from Jiang An, Mr. He was very pleased.

He stood up straight.

Mr. He looked at the two evidence bags in his hand and said, "Brother Jiang An, is the vehicle inspection complete?"

Jiang An shook his head.

"We still need to remove the seats in the cabin to check under them."

"Remove the seats?"

Mr. He was instantly surprised.

Years ago, he worked in the traffic accident department.

He's done vehicle inspections numerous times.

But never has he had to remove seats for an inspection.

"Brother Jiang An, are you sure about removing the seats?"

Jiang An nodded. "Removing the seats allows us to inspect more thoroughly!"

At this point, Mr. Zhang glanced at him and nodded as well.

Mr. He said, "Alright."

"I will contact the repair company to remove the seats."

Twenty minutes later, a yellow repair truck entered the used car market.

The driver then took out a wrench and quickly removed the seats.

Subsequently, Jiang An took the flashlight and bent down to inspect beneath the seats.

Looking around, he saw a small amount of food and debris under the seats.

Suddenly, something under the front passenger seat caught his attention.

Seeing him puzzled there, Mr. Zhang suddenly approached and patted his shoulder.

"What's wrong? Did you find something important?"

Jiang An turned and said, "There's a black button under this seat."

"A black button?"

Mr. Zhang recalled the deceased's clothing and found no black button anywhere.

"Does this button relate to the case?"

Jiang An picked up the button to examine it closely, then turned and said, "It does!"

At this point, Mr. He came over and said, "Could it have been left by the previous owner?"

"That possibility is low."

"Because I see nicks and scratches on this black button."

Mr. He leaned in to inspect and indeed saw some slight abrasions on the edges.

Instantly, he gave a thumbs-up.

"Comrade Jiang An, you're amazing."

"I think your observation skills have reached the level of Eyes of Golden Flame."

"Hahaha! You're flattering me! It just happened that the angle allowed me to see the scratches clearly."

After contemplating for a moment, Mr. Zhang also said, "The appearance of the black button in the car isn't unusual."

"But the fresh scratches and edge damage suggest it might have clashed with the car window glass."

Jiang An added, "To ensure a more complete conclusion."

"I suggest we collect and scan the button further."

"If we discover glass particles on it, we can confirm its connection to the case."

Mr. Zhang nodded with satisfaction after listening.

"Clear thought process!"

"Logical speculation, method for verification!"

"I'll immediately arrange for an electron microscope examination."

Just then, Mr. Zhang's phone rang.

"Mr. Zhang, it's Xiao Du from the Network Security Office.

"Hello, Xiao Du."

"Earlier, you requested a probe into the WeChat accounts registered under Li Lan's name."

"We've found three accounts in total."

"Three WeChat accounts?"

Zhang Feng was slightly surprised.

"One account has contacts such as parents, family, and classmates."

"The other two accounts each have only one contact."

Upon hearing this, Mr. He was shocked.

Wan smirked, "For an art student, having three WeChats isn't unusual."

Mr. Zhang raised his gaze slightly.

"But having just one contact on a WeChat account is definitely odd."

Consequently, Mr. Zhang asked, "Can you help us find out who these two WeChat accounts belong to?"

"Mr. Zhang, please hold on!"

Five minutes later, Mr. Zhang's phone rang again.

"Report, Mr. Zhang. One belongs to Li Guang, a student of the Sports Academy."

"The other belongs to Zhang Biao, a gym trainer."

"Alright, thank you for your efforts."

After hanging up, Mr. Zhang pondered for a while.

He said, "Next, we need to further investigate Li Lan's personal relationships."

"However, the Network Security Office has already identified two potential suspects."

"One is Li Guang, a student from the Sports Academy, and the other is Zhang Biao, a gym trainer."

Finally, Mr. Zhang looked determined, "I think we need to invite them over for a chat!"

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