Outside the police tape, after a brief discussion, the group immediately entered the arson crime scene.

Even though they all had a basic direction in mind, many questions and doubts still lingered regarding the case.

The biggest mystery was the whereabouts of the female victim's skull.

Whether it was a murder followed by a suicide or a double homicide, the female victim's skull must be found to confirm her identity.

Five minutes later, Li Jian, Chen He, Jiang An, and others walked into the charred bedroom.

By this time, the smoke in the bedroom had dissipated.

Everywhere the eye could see was a scene of utter devastation.

Jiang An put on gloves and slowly approached the iron bed.

Compared to the initial scene investigation, this time the focus was much more targeted.

They needed to search through the ashes to find scattered skull fragments.

No matter how small the fragments were, as long as the structural features were identified, the skull structure could definitely be discerned.

In the human skeleton, the skull has very distinctive features, with two layers of bone and a diploë between them.

The diploë is similar to a honeycomb structure, which is its most significant feature.

Standing in the doorway, Jiang An glanced at the scattered ashes and wall fragments on the floor.

He turned his head and said, "Mr. Li, could you arrange for the local police station to send us a gauze filter?"

"A gauze filter?"

Jiang An nodded, "It's a textile similar to a fishing net. I want to sift through the dust at the scene."

"This way we can find any remaining skull fragments more quickly."

Li Jian glanced at the ground.

He nodded and said, "No problem, I'll arrange for Zhang Hu from the police station to bring a gauze filter over."

Jiang An said, "It's best if he also brings a few shovels!"

Li Jian pulled out his phone, nodded, and said, "No problem, I'll have him bring those as well."

Zhang Yean put on gloves and walked over.

"Junior, you mean to sift through all the ashes here with the net?"

Jiang An nodded.

"I believe the female victim's skull fragments decompose more extensively than the skull fragments found in the forensic lab."

Glancing at the ground, he said, "There should be many more here."

"Only, the skull fragments exploded into very small pieces."

While they waited, Jiang An, Zhang Yuan, and Wan did not remain idle.

Jiang An crouched down, searching for remaining skull fragments on the ground.

Wan stood by with an evidence bag, ready to seal it.

Two minutes later, a very tiny bone fragment came into Jiang An's view.

This bone fragment was so small, just slightly larger than a mung bean.

However, the diploë on one side of the bone was very prominent.

With just one glance, Jiang An was certain that it was a skull fragment.

Jiang An quickly picked up the skull fragment and placed it in the evidence bag.

Wan glanced at it and softly said, "Wow, Junior, you've got sharp eyes."

"You even found such a tiny skull fragment."

Jiang An smiled.

"The reason we didn't find such tiny skull fragments last time was that our focus was on larger bone pieces.

This time, with our attention on smaller fractures, our search is more precise."

Just then, Zhang Yean excitedly exclaimed, "Found it! Found it! I also found a very small skull fragment."

She picked up the skull fragment and laid it in her palm.

"Doesn't this fragment look like it came from a skull?"

Jiang An took it, examined it carefully, and nodded.

"Indeed, the diploë structure of this bone fragment is very distinct."

Wan turned to look at Zhang Yean.

He softly said, "Junior Sister, you're impressive."

"To make such an important discovery so soon."

Zhang Yean smiled, "Thank you, Senior Wan, for your recognition."

"But it's all thanks to Mr. Jiang's guidance. Without it, I would have overlooked these bone fragments."

Wan grinned and said, "That's the truth."

Just then, Zhang Hu rushed up, panting heavily.

"Sorry, Mr. Li."

"I'm a bit late."

Li Jian turned to look at Zhang Hu, noticing a blue cloth net in the officer's hand behind him.

He said, "Thank you for your hard work."

Zhang Hu smiled, "Mr. Li, you're too kind."

"You're the ones handling the case, the hard work is yours. We're just assisting."

Li Jian turned to Jiang An, "Jiang An, does this cloth net work for you?"

Jiang An turned and glanced at it.

"It's perfect!"

"The mesh size is suitable, it should be able to filter out fine dust particles."

Li Jian said, "Now that we have the net as a tool, you don't have to keep sifting through the dust particles on the ground. We can use the net for screening right away."

Immediately, Jiang An, Zhang Yean, and Wan stood up and began gathering and screening all the dust from the entrance onward.

Twenty minutes later, the first round of screening was complete.

As fine dust particles were sifted through, several small irregular objects remained on the fishing net.

Chen He excitedly said, "Come take a look at these. Aren't these skull fragments on the net?"

In an instant, Jiang An, Zhang Yean, and Wan all crowded over.

While Jiang An was closely observing, Zhang Yean quickly said, "There's a honeycomb structure here!"

Jiang An picked up one of the bone fragments and examined it.

"It is indeed part of the human skull structure."

"Moreover, this bone fragment doesn't come from the top of the skull, but from the maxillary alveolar socket."

Upon hearing this, the furrowed brows of Li Jian relaxed significantly.

They had only screened part of the bone fragments, but it fully corroborated Jiang An's initial assumptions.

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