Detective: Start with capturing and retrieving the dog

Chapter 202 The real motive

The next day, the autopsy report and on-site search were preliminarily completed, so Han Xin and Zhao Linshan came to the Public Security Bureau to check the report.

The cause of death of the victim was the same as it appeared on the surface, namely being smashed to death by a wrench, throat cut and strangled to death, but the difference this time was that the police found the murder weapon used by the murderer, so it was confirmed that it was a wrench.

And this wrench was found from the victim's home. Everyone in the rural town will have some tools at home.

"The murderer is getting bolder..." Han Xin frowned and thought to himself.

Although it is said that this kind of farm compound that is far away from neighbors gives the murderer a chance to commit crimes, but it is too bold to go to other people's homes to commit crimes empty-handed.

"The murderer's DNA was found on the daughter, which is the same as last time." The forensic doctor explained to Han Xin, "but this time, he wrote the word 'door' on the victim's genitals."

"This bastard is provoking the police." Han Xin frowned.

"This guy is very careful." The forensic doctor sighed, "There are no fingerprints or footprints at the scene. In short, there are no clues left to determine his appearance. DNA is the only available information in the case."

"But if you can't catch the person, DNA is meaningless." Han Xin said.

No usable information has been obtained in this fourth case, and now we can only wait for the police to investigate.

At the same time as the investigation, the police also stepped up their patrols in those remote mountainous areas, and they are also investigating the street girls. This should delay the date of the murderer's next crime and buy the police more time to investigate.

While the police were investigating here, Han Xin had nothing to do, he could only take Zhao Linshan around.

But Zhou Zhengshi has been here many times, and Han Xin and Zhao Linshan's familiarity with this place is second only to Beichang City.

On this day, after dinner, Han Xin brought dinner to Huo Gang and others, and then came to the Public Security Bureau.

"Mr. Han!" Xiao Anguo said sadly when he saw Han Xin, "Sorry, we didn't find any useful information here. We have checked the criminal records of the entire Blue Lagoon Province, but there is nothing that meets your requirements. The person who said the conditions."

"What about the ex-girlfriend?" Han Xin asked, "Isn't it possible that nothing was found?"

"Oh, I left it to Lao Huo to lead someone to investigate, and I should still be investigating." Xiao Anguo looked at the time and said.

"Okay, then you can eat first." Han Xin said, and handed over the snack in his hand.

"Thank you." Xiao Anguo accepted it with a smile, "What do you think is the reason why he was not found?"

"Maybe there was a mistake in appearance." Han Xin muttered, "I judged him to be thin based on the fact that he used scissors, but there are also a few possibilities. For example, one of his hands may be disabled, so the weapons he used were all It's one-handed hammers, wrenches, and scissors. It's also possible that he suffered from some terminal illness that made him weak, but he was not thin."

"Ah, that's right!" Xiao Anguo slapped his hands: "This can also explain why the suspect started committing crimes after nearly two years, because he was terminally ill or his hand was injured! Then he may not be thin , maybe it’s even possible that he wasn’t arrested during the past two years, so we can’t find this person’s prison record?”

"Maybe." Han Xin sighed, "This possibility is relatively low and needs evidence to support it."

At this time, Huo Gang came back from outside with Lu Wenbo, Wei Bin, Hu Chen and a team of criminal police.

"Ah, did Teacher Han bring us the meal? You're welcome!" Seeing the lunch box in Han Xin's hand, Huo Gang grabbed it immediately, and then devoured the meal, "From [-]:[-] p.m. to [-]:[-] p.m. , but I starved to death."

"Did you find anything?" Han Xin said, and handed the lunch box in his hand to others.

"We found it." Lu Wenbo laughed while eating barbecue rice, "We found that guy's ex-girlfriend, her name is Sun Yuan, and she lives in Lanshan Town next to Datong Town! It's exactly as you expected!"

Wei Bin also explained while eating: "She said that after graduating from high school, she found a job in a factory and met her ex-boyfriend there. The two dated for two years, but when they were about to talk about marriage, the boy because He was jailed for theft and was sentenced to two years. About a year and a half ago, he went to visit her in the village, but by that time she was already married, and he left town very frustrated."

Hu Chen swallowed the food in his mouth, and said with an excited smile: "The couple in the canteen in Datong Town were killed after that, and the timing was all right. Now she is already describing her ex-boyfriend's appearance to the police!"

Huo Gang added: "The murderer's appearance is a little different. She said her ex-boyfriend is 1.8 meters four, tall and strong. It's just that he injured his left hand when he was working in the factory. Can't help it. But in any case, we can find his ex-girlfriend only by your reasoning."

"Huh?! Huh!" Xiao Anguo suddenly became excited, but he choked on the food in his mouth and coughed violently, "Just like Teacher Han, cough cough! The guess is exactly the same! The murderer's hand, cough cough !”

"Sure enough, his hand was injured..." Han Xin frowned and muttered to himself, "No wonder he dared to enter the victim's house empty-handed. He is 1.8 meters tall and very strong. He is not afraid even if he is discovered, right?"

At this time, the forensic doctor who was with Han Xin hurried over: "Consultant Han! There is a new discovery!"

"What did you find there?" Han Xin asked curiously.

The forensic doctor gasped and raised the report in his hand: "That's it, the bodily fluids left by the suspect on the victim... We found saliva on the victim's neck, and then tested the saliva, and found alpha substituted in it. This substance! This is a drug for treating lung cancer, and it is mainly used to prolong the survival of lung cancer patients!"

"Yeah!" Xiao Anguo hammered his chest hard, trying to swallow the food in his mouth, and pointed at the forensic doctor and muttered, "Guha Lasi is so comfortable!"

"Oh, talk after eating!" Huo Gang punched him angrily, "What are you mumbling about?!"

"Now all the elements are in place..." Han Xin slapped his fist, "With these factors, we can determine the murderer's motive and his criminal psychology. And now there is evidence given by his ex-girlfriend Looking at his appearance and more specific time, we should be able to find him from the prison records, right? Finally, we will see his true colors!"

It now appears that the murderer should have gone to find his ex-girlfriend after he was released from prison, only to find out that his ex-girlfriend was married.

This incident hit him hard and made him vent his anger on the couple in the commissary in Datong Town.

And after that, because he had a scapegoat to take the blame for him, he continued to live this kind of criminal life, and was arrested and imprisoned for the crime again.

But at this time he has become an old fritter, and it is easier for him to be locked up in prison without worrying about food and drink.So he will continue to commit crimes after he comes out, and going to jail is not a deterrent to him at all.

But the real motive that turned him into a murderous maniac should still be this "lung cancer".The mortal ending distorted his psychology, and he had the idea of ​​revenge against the society, and by the way, enjoy it before he dies.

Putting himself into the murderer's mind made Han Xin feel furious: those innocent victims didn't know what they did wrong until they died.

Just because of my own misfortune, I will destroy those happy families.

The murderer is still running around. It is obviously early stage lung cancer, which can actually be cured, and the cure rate is not low.

"Haha, what an irony..." Han Xin sneered, "This will be your biggest punishment."

This news boosted the morale of everyone in the Public Security Bureau, and everyone rushed to work overtime after dinner.

"Why didn't you mention these two possibilities from the beginning?" Zhao Linshan poked Han Xin's face from the side.

"There are very few special cases like this, which need specific evidence to confirm." Han Xin explained, "If these special cases are taken into account from the beginning, there are too many possibilities. For example, religious homicide, paranoia , schizophrenia..."

"These specific evidences..." Zhao Linshan raised her eyebrows.

"Yes." Han Xin sighed and said, "Although it is a pity, this kind of specific evidence often needs to be found from the victim. To put it simply, the more cases the same murderer commits, the easier it is to interpret his psychology."

As he said that, Han Xin added: "Of course, it's always good to catch the murderer as soon as possible, as there are fewer victims."

Zhao Linshan kissed him on the cheek, and nodded cheerfully: "It's up to you, husband!"

With more specific information this time, the police soon had the results of the investigation.

When Han Xin and Zhao Linshan bought a midnight snack and came back, Xiao Anguo was waiting to report to him.

"Yes!" Xiao Anguo raised the file in his hand excitedly and nervously, "This is the guy!"

Han Xin took it over and took a look. The prisoner in the file was named Ma Wei, who was only 27 years old this year.The man in the photo has short, messy hair, which is fairly pleasing to the eye, and his wide-open eyes give people a dull feeling. It is hard to imagine that this is a murderer.

He was jailed for three years for robbery and attempted rape about a month after the couple were killed at a Chase Township commissary.Because of good behavior in prison, he was released early three months ago.

According to Ma Wei's ex-girlfriend, this guy went out to work before graduating from high school. Later, he met his ex-girlfriend Sun Yuan. After dating for two years, he was arrested and imprisoned for two years because of repeated theft.

This time completely matches the timeline of the murder.

"You are so young..." Han Xin thought to himself: There must be some special reason for contracting lung cancer at such a young age, and it is most likely caused by the work environment.

However, Han Xin did not allow this bastard to spread his misfortune to those around him.

(End of this chapter)