While the manhunt is in progress

Chapter 405 A Different Difficulty
After grasping the physical characteristics of the murderer, the police in Changshui County soon realized that there was a group of people whose appearance was very similar to the murderer, and that was the reeducation through labor personnel.

Various traces at the crime scene also showed that although this was a murder case of passion, the murder weapon and Yao Fang's clothes were not found at the crime scene, apparently hidden by the murderer.

At the same time, many traces also show that the murderer is familiar with the local terrain and has relevant criminal experience.

Therefore, the labor camp, which is only one kilometer away from the crime scene, was listed by the Changshui County Police as an area that needs to be investigated.

"At that time, in Qin Xia, prisoners with a sentence of less than ten years were usually sent to the labor reform center for labor reform." Lei Xu recalled: "The labor reform center near the place where the crime occurred held more than 300 prisoners. monitor each other."

"After our investigation, there were 20 prisoners who went out to work on the day of the incident, so we interrogated these [-] people. By comparing their records, we found a person who was a major suspect."

The man named Dong Zhe, who was listed as a major suspect by the Changshui County police, was in his 30s, and his height and weight were very similar to the murderer's appearance that the Changshui County police knew.

And most importantly, he claimed that he had been sleeping during the incident, but no one could prove his alibi!

"At that time, we felt that we had seen the dawn of solving the case. The only problem was that Dong Zhe didn't admit it, so we intensified the investigation." Lei Xu seemed to have remembered something, shook his head before continuing:
"Through careful investigation of Dong Zhe, we found that there were splatters of blood on his labor camp uniform, so we conducted an extraction and verification and found that it was consistent with the blood type of the deceased Yao Fang."

"We were all so happy at the time. The captain and I took the results of the comparison to interrogate Dong Zhe, but he still didn't admit it..."

Through Lei Xu's description, Song He and others could feel that he still had a fresh memory of that interrogation.

During that interrogation, Lei Xu was very disgusted with Dong Zhe's denial. However, during the interrogation, the captain discovered that when faced with the evidence, all Dong Zhe's reactions were those of a person who was wrongly accused.

Therefore, the captain decided to send the remains of the murderer's genetic factors extracted from Yao Fang's body to Qindu for blood typing.

"At that time, the technology in the county was really backward." Lei Xu spread his hands and said, "I remember that Qin Xia didn't have genetic identification and comparison technology at that time, and could only determine the murderer's blood type through body fluids containing genetic factors. "

"However, after receiving the blood type identification results from Qindu, we found that Dong Zhe's suspicion has been ruled out."

Recalling the scene at that time, Lei Xu seemed to be a little bit shocked, and then continued: "You don't know, all the police officers involved in the investigation were dumbfounded at the time, and the most critical evidence cleared Dong Zhe's suspicion. It also dismisses our investigation."

"Fortunately, the captain cheered us up in time, otherwise we would really be hit hard."

Song He felt his emotions at that time from Lei Xu's narration, and sighed: "The technology was not mature back then, but the investigation of the case was more comprehensive than some of the cases now, which shows how much hard work you have put in in Bureau Lei."

"You can say it." Lei Ju adjusted his mood and continued: "Later, the investigation reached a stalemate, and we began to look for people who matched the characteristics in the surrounding area. Nothing."

"But later on, our Qinxia criminal investigation technology was updated, and we entered the well-preserved body fluids containing the murderer's genetic genes into the database. And a month ago, these data finally matched the person."

For more than 20 years, the identification center that has recorded the murderer's genetic code has never given up on comparison. It not only collects and compares all the biological information of men around the crime scene, but also gradually begins to spread its sights to farther places. .

In addition to being obsessed with the case, the identification center conducts such comparisons like looking for a needle in a haystack, partly because the murderer is a man.

We must know that at the genetic level, as long as the Y chromosome that matches the murderer is found, it is equivalent to finding his male relatives and indirectly confirming his identity.

In this way, a month ago, news came from the identification center that the biological information of the suspect in a traffic accident case outside the city was successfully compared with the murderer who killed Yao Fang, and it was confirmed as the male relative of the murderer.

The overjoyed Changshui police immediately rushed to other places to investigate and found that the father of the suspect in the traffic accident case had been to Changshui County on the day of the incident 23 years ago!
The Changshui police, who saw the dawn of solving the case again, excitedly collected the biological information of the [-]-year-old suspect, but the comparison results disappointed them again.

"After 25 years of tossing around, I thought the murderer had been identified, but who knew it would be like this again." Lei Xu said with emotion: "When there was no comparison result a month ago, we submitted the application."

"Later, I thought I had found the murderer, so I planned to cancel it, so as to save you a waste of time. It turned out that I didn't know until later that it would be okay if you didn't come."

Lei Xu's self-deprecating words made Song He and the others laugh, and Song He asked with a smile on his face: "Lei Ju, since the scope has been determined, why don't we compare all the men in these blood-related families?" ?”

Lei Xu shook his head: "We have compared, but there is still no result."

Zhou Kai frowned: "Have you compared everything?"

Lei Xu nodded and said: "Their family happens to have a genealogy, and every male will write it down. We checked the genealogy, but we compared all those with names and ages."

"There are only a few eligible ones left that have not yet been identified, but these people are now buried in the cemetery. We have sent people to do the work, and the coffin can be opened in a day or two, just in case we still can't find the murderer , it’s not easy to explain to this family.”

Song He flipped through the case information and thought: "What did the old man do in Changshui County on the day of the incident? Their home is more than 100 kilometers away from here. If there is no special purpose, there is no need to make a special trip?"

Lei Xu smiled bitterly: "I can't find out. This old man has Alzheimer's disease, and it is already very difficult to maintain basic communication."

Song He Wenyan and Zhou Kai looked at each other, and both felt that the difficulty of this case was completely different from the usual cases.

"So, the investigation of this case has now become a job to find the missing members of this family." Song He was a little dumbfounded: "Could they have a branch, or someone got married outside but was not included in the family tree?"

Lei Xu shook his head: "According to the genealogy records, these two situations do not exist, and we also considered whether the old man had an illegitimate child. However, all investigations on the old man were unable to proceed because of his illness."

Song He thought for a while and analyzed: "There will be no problems with genetic identification and comparison. The murderer and the old man must be blood relatives, and judging from the murderer's age at the time of the crime, it should be the old man's nephew."

"Since the murderer and the old man appeared in Changshui County at the same time, I think they must be related. Otherwise, there is no way to explain why they appeared here at the same time."

(End of this chapter)