Chapter 577: Chapter 577: Lu Chuan’s Questions
When Wang Song made a discovery, the Crime Scene Investigation team in Tianzhou City immediately began the facial recognition work.
With the advancement of criminal investigation technology, facial recognition is playing an increasingly important role in solving cases.
In many cases, when other technologies hit a dead end, facial recognition often provides investigators with new directions.
However, like fingerprints, facial recognition requires a massive database for support.
And this is often a significant shortfall.
"We can’t pin all our hopes on facial recognition."
Every case handled by Li Donglin has been a major one.
His experience is exceedingly rich, especially with the three suspects in this family massacre case, who are extremely cautious and have a strong sense of anti-investigation.
Therefore, trying to identify them through facial recognition, let alone capture them, is indeed very difficult.
"Old Song, your side should not relax either; strive to find clues about suspect number one and number two."
"The suspects clearly haven’t been in Tianzhou City for just a day or two, so where are they staying? Follow up on the clues about suspect number three from Wang Song’s side, press on, and try to find their hideout."
This is a game of following the vine to find the melon, with the suspects trying their best to erase all traces while the police strive to find them through tiny clues.
Wang Song is making substantial progress, and Lu Chuan is also making notable headway.
In the car.
Wang Ruiqing was still talking about Lu Chuan.
"Xi Mengyao... is she the survivor of the 116 case or a victim, Officer Lu, your question just now... wasn’t appropriate."
Although Qin Hui had remained silent, once in the car, he sat in the front passenger seat, looking forward and not speaking to Lu Chuan, which indicated his stance.
Although Lu Chuan contributed significantly to Qinzhou City’s Criminal Investigation Team, still...
This line of questioning was indeed somewhat inappropriate.
Lu Chuan smiled.
He looked carefully at Wang Ruiqing.
"Brother Wang, about the 116 case back then, how did the police determine there were three suspects?"
Basis?
Wang Ruiqing was taken aback: "Yes, from what Xi Mengyao said."
Right, it was what Xi Mengyao said.
As a victim and the only survivor, her testimony determined that there were three suspects.
But beyond that?
"Is there any other evidence?"
Other evidence?
Wang Ruiqing, having participated in the Crime Scene Investigation of the 116 case back then, was very familiar with the evidence chain, and there was no other evidence.
"Such as footprints, fingerprints, hair, skin flakes, etc."
"This..."
Wang Ruiqing was stumped: "There was no other evidence, and the reason the case hasn’t been solved yet is that the crime scene was extraordinarily clean, with nothing left behind."
"So, at that time, you only relied on Xi Mengyao’s words to conclude there were three suspects?"
Lu Chuan’s questioning made Qin Hui, sitting in front, feel his head buzzing!
Being the head of the Criminal Investigation Team in Qinzhou City, Qin Hui is certainly not a fool.
On the contrary, Qin Hui has rich investigative experience, sharp instincts, and meticulous logical analysis capabilities.
As a criminal investigator, it’s crucial to maintain suspicion of anyone involved in a case at all times.
Xi Mengyao...
As a victim and the only survivor of this case, Qin Hui and others initially placed her in a trustworthy role.
But who can guarantee that everything Xi Mengyao said is true?
Just like Lu Chuan’s earlier question about there being three suspects, it all came from Xi Mengyao.
But in reality, nothing was left at the crime scene as evidence, so who can say for sure that there were indeed three people, and what if Xi Mengyao lied?
Wang Ruiqing reacted at this moment, looking at Lu Chuan in amazement.
"Lu Chuan... are you saying... Xi Mengyao lied?"
Lied?
Lu Chuan shook his head.
Perhaps Xi Mengyao did lie, but perhaps she didn’t.
After all, when Xi Mengyao was responding to Lu Chuan’s inquiries just now, and even when answering police questions back then, she did not express with absolute language that she truly saw three people.
Her words were vague, only saying maybe, suggesting recollection or seeming.
She didn’t definitively say there were three people.
Therefore, as someone who was already dazed back then, was what Xi Mengyao saw real?
Who can be certain?
Qin Hui, seated in the front, also turned around at this point, now understanding why Lu Chuan asked Xi Mengyao with that tone earlier.
Because Lu Chuan was holding a suspicious attitude towards her.
"Lu Chuan, are you implying..."
Qin Hui left the sentence unfinished, but both Lu Chuan and Wang Ruiqing knew what he meant.
"It’s still uncertain now."
"I remember on the day of the incident, six girls from the dormitory went out to dinner to celebrate a birthday, whose birthday was it?"
"It was... Xi Mengyao’s."
"Did they drink?"
"Yes, they did."
"The case file says that you investigated the restaurant where the six girls dined, and according to the consumption records at the time, the six girls drank more than thirty bottles of beer."
"With their drinking capacity, they were at least half-drunk by the time they returned to the dormitory."
"So this explains why, when the suspect entered the dormitory, everyone didn’t react and was instead easily knocked out, right?"
Wang Ruiqing and Qin Hui nodded.
"Another point, I examined the bodies of the two victims who weren’t cremated this morning."
"I discovered a phenomenon."
The reason Lu Chuan wanted to look at the bodies from back then is that the suspect in this case and the family massacre in Tianzhou City were committed by the same group or at least shared one suspect.
"In the family massacre in Tianzhou City, the suspects also targeted female victims."
"From the crime traces at the scene, it is clear there are three suspects."
"One of them is one of the suspects from the 116 case in Qinzhou City."
What Lu Chuan mentioned, Qin Hui knew.
This is also the reason why Lu Chuan came to Qinzhou.
"Since both cases have the same perpetrator, why was it that the perpetrator in the 116 case at the time could leave no trace at the scene, but couldn’t do the same in the family massacre?"
This is indeed an issue.
The suspect wasn’t committing a crime for the first time; he’s a recidivist with a history of repeated crimes, so if he was able to leave no trace at the 116 crime scene, he should have been able to do the same in the family massacre.
But in reality, although there was no skin flakes, hair, or other DNA-traceable information at the family massacre scene, the footprints were a mess, leaving some clues for the Public Security Bureau.
Lu Chuan used the footprints to identify the suspect’s physique, and Song Mingguang and Wang Song made breakthrough progress in the case based on the physique characteristics provided by Lu Chuan.
