Sun Yu's words made everyone except Cao Qin confused. The people in the criminal police team all looked at Cao Qin, who was shocked, and the people in the special case team looked expectantly at Sun Yu, who was still smoking.

.

"Captain Cao!" Sun Yu said with a smile, "You are so good at handling cases, why don't you explain to everyone why you asked the special case team for help?"

Sun Yu's question sounds a bit contradictory, and even the preface and the follower are inconsistent. Strong case handling ability and asking for help from the special case team are contradictory. And are the two related?

Only the subordinates of Cao Qin's police force were the first to understand what Sun Yu said. They had been having this question ever since Cao Qin asked the special case team for help.

Tourist cities have a large flow of people, a mixture of good and bad, and relatively many criminal cases.

Cao Qin has always been a goddess detective in the minds of these police officers. So far, in every case that Cao Qin has taken over, the murderer has never been caught.

But this time, the investigation had just begun, and Cao Qin asked the special case team for help.

Cao Qin looked at Sun Yu with interest, "Do you know about the case ten years ago?"

"Haha!" Sun Yu nodded, "When I was a freshman, you once consulted Wang Yu, a professor of criminal psychology at Mengshan Public Security University, about a case. I happened to see the case in his office at that time.

's dossier."

A trace of surprise flashed in Cao Qin's eyes. She had indeed consulted Professor Wang Yu back then, and she repeatedly told Wang Yu not to let others see the files on this case.

Wang Yu said at the time that he might ask a crime-solving expert to help take a look. Could it be that the crime-solving expert was Sun Yu, who was a freshman at the time?

"Are you the master of solving crimes that Professor Wang Yu was looking for?" Cao Qin asked.

Sun Yu shrugged, "I don't know if Professor Wang has found anyone else. He just asked me to help look at the case."

Sure enough, it was him! Cao Qin knew that Wang Yu only let one person read the file.

"The case files have never been copied. It's been nine years, and you can still remember it so clearly and connect this case with that case immediately. Your memory is really good." Cao Qin said slowly.

"Isn't it the same for you? It's been ten years, haven't you immediately thought of the case back then?" Faced with Cao Qin's praise, Sun Yu gave her a compliment.

The conversation between the two has fooled others. Everyone can tell that this case may be related to the case ten years ago, but what exactly was the case ten years ago?

"call--"

Cao Qin let out a long breath, "Ten years ago, a strange serial murder case occurred in Yangbai County, which has not yet been solved..."

That summer ten years ago is destined to be a summer that Cao Qin will never forget in his life, and it is a nightmare that Cao Qin has not eliminated to this day.

That year, she was only 26 years old. Through her own efforts, she entered the criminal police team from the local police station. However, the first case she encountered was an unsolved case.

It was July, with the scorching heat, and the cleaners cleaning the small river found a black plastic bag filled with body parts in a small river in the county.

There are many small rivers in the county. Most of these small rivers are man-made and not very deep.

As a tourist city, in order to maintain the beautiful environment of the county, cleaners will clean up the garbage in the creek every three days.

In other words, this bag of body parts appeared within three days.

Cao Qin followed her master to the police and immediately blocked the entire creek, then salvaged it. Finally, she found six black plastic bags inside, which were all body parts and could be completely spliced ​​together to form a person, a man.

After a forensic autopsy, it was determined that the time of death was within three days of the discovery of the body parts. The specific time could not be confirmed.

The man's body was cut into pieces by a chainsaw. Because the cuts of the chainsaw were very destructive, it was impossible to determine the fatal injuries of the deceased.

The forensic doctor believed that the deceased should have been killed with a sharp weapon. The judgment was based on the amount of blood on the body parts. The deceased should have been cut through a major artery in one place by a sharp weapon, resulting in excessive blood loss.

In addition, the forensic doctor found sawdust on some of the corpses, and combined with the fact that the murder weapon was a chainsaw, it was believed that the murderer was related to carpentry.

The police immediately opened a case for investigation, and the main investigation direction was people related to carpentry in the county.

Three days later, based on the missing persons reported by local police stations, the police determined the identity of the deceased. His name was Dong Liqiang, a 23-year-old villager from Dongzhuang, Dongmei Township, Gaogang Town.

Dong Liqiang's father used to be a carpenter in the village, and he was very skilled. Later, he took his wife to work in other places. He usually only came home during the Chinese New Year. The person who reported Dong Liqiang's disappearance was his grandmother.

Dong Liqiang has been at home, taking over his father's carpentry job, but he basically spends three days fishing and two days drying nets.

He usually idles around and is a little gangster in the county town. He often does some sneaky things. His social relations are complicated and he offends countless people.

After confirming the identity of the deceased, the police immediately went to search the workshop where Dong Liqiang worked as a carpenter. Sure enough, they found a large amount of blood stains and residual body parts there, and determined that this was the scene of dismemberment.

The case seems to be very clear at this point. The murderer can appear in Dong Liqiang's workshop, which shows that he and Dong Liqiang know each other, and the direction of the investigation is also much clearer.

However, three days later, that is, six days after the body parts of Dong Liqiang were found, the cleaners of the small river salvaged another black plastic bag with body parts inside from another small river.

It was still six black plastic bags, but this time, the deceased was a woman.

The time of death given by the medical examiner was within three days of the discovery of the body parts. It is suspected that the cause of death of the deceased was also caused by excessive blood loss.

The most bizarre thing is that the forensic doctor once again found sawdust on the body parts, and even the positions of the body parts stained with sawdust were almost the same.

This time, the police identified the deceased the next day.

The deceased's name was Zhu Xingyue, female, 18 years old, from Beng Village, Pingyu Township, Qiaoxia Town.

The reporter was a carpenter in the village. He found a large amount of blood stains in his workshop. He was frightened at the time and called the police immediately.

At that time, the police unanimously believed that this was a serial murder case and immediately investigated the case.

Beng Village and Dongzhuang are located in the southernmost part of Yangbai County and the other in the northernmost part. The two deceased people have no intersection or even anything in common.

Having said this, Cao Qin slowly walked to Sun Yu and took out a cigarette from the cigarette case on the table. Sun Yu quickly gave her a lighter to light the cigarette for her.

Cao Qin holds a cigarette in one hand and holds the elbow of the cigarette holding hand in the other hand. Her smoking posture is very elegant.

"One is a corpse dismemberment case, and the other is a poisoning case. The murder cycles are also different..." Meng Yuan looked at Sun Yu in confusion, "Why are you saying that the two cases are related?"
Chapter completed!