Detective: Start with capturing and retrieving the dog

Chapter 170 A Complicated Situation

Since this case has passed for too long, there are no traces at the scene, and the suspect has already gone to other cities, so there is no need to go to Shenshi for the time being.

The key now is to find other similar cases and see if the murderer made any mistakes.

But just like the arrest of Su Huilin, only by finding her early cases will she have a chance. The more proficient her modus operandi is, the fewer flaws will be exposed, and she can only wait for the murderer to make a mistake.

But that means waiting for more victims.

After leaving the Public Security Bureau, Han Xin and Zhao Linshan found a place outside for lunch.

However, Han Xin always felt that something was wrong, but he couldn't tell, what details were ignored by him.

This kept him distracted while eating.

"Why? Just like me, you lost your appetite after seeing those corpses?" Zhao Linshan teased.

"How is it possible, I have seen a lot of corpses." Han Xin poked her forehead and said.

"That's right, the serial killer in Shiji City had a lot of corpses last time." Zhao Linshan muttered.

Han Xin patted himself on the forehead suddenly: "That's right! That's the detail!"

Last time, Su Huilin also hid the corpses in the cement, but those corpses were already seriously corrupted at that time, and those corpses had only been hidden for a year or two, but this time the corpses were sealed in the wall for several years and were still intact.

It must be because the murderer did something else to the corpse, a technique that Su Huilin didn't know.

"Quicklime." After hearing Han Xin's suspicion, Zhao Linshan explained, "You may think that after sealing the corpse with cement, the rate of decay will slow down a lot, right? But it's not true. Cement is weakly alkaline. It may speed up the decay of the corpse. And the airtightness is not so good, and it may be slower than normal decay when sealed in cement."

"How do you know?" Han Xin pinched her little ear and asked.

"I'm writing about this anyway, so of course I've checked it." Zhao Linshan smiled proudly.

Although Han Xin has a "knowledge reserve", he will not prompt for things he cannot see, which has become a blind spot.

"Can the quicklime keep the corpse from decomposing for so long?" Han Xin asked.

"Hmm...quicklime is placed in the coffin for burial. It takes about two years for the corpse to decompose in that environment, and if it is built in the wall, it should be longer according to its airtightness Right." Zhao Linshan tilted her head and replied, "But quicklime is mainly used to deal with the smell of corpses, and formalin is more effective in embalming."

"I know this." Han Xin nodded, "It seems that we need to get the forensic doctor to confirm it as soon as possible."

"Why? Does it matter?" Zhao Linshan asked puzzled.

"Of course, the murderer's purpose will be very different whether or not the corpse has been carefully treated." Han Xin held her small face and said seriously, "If he only treated it with lime, then his purpose is to eliminate the smell of the corpse. To avoid suspicion by the homeowner; but if he had been treated with formalin, then his purpose might have been to surround him with corpses."

"It's so perverted..." Zhao Linshan muttered, and then asked in horror, "Isn't that the previous owner might be the murderer?"

"That's why we have to find out as soon as possible." Han Xin took out his mobile phone and dialed Huo Gang's number.

After inquiring, because the surface of the corpse was covered with cement, further testing was needed to determine whether it had been treated with lime and formalin, and it was impossible to tell from the smell and touch.

However, according to forensic speculation, it can be preserved in cement for six years without decomposing, and it can be basically confirmed that it has been treated with formalin.

"Then this kind of thing will be a lot of trouble." Han Xin frowned, "First of all, the murderer's action mode is different. He may have disposed of the corpse first after committing the crime, and then waited until he was working overtime before putting the corpse together. Into the wall or buried in the foundation, and the murderer may have another purpose in hiding the body in the wall..."

This result made the case suddenly complicated.

"In short, let's do further testing first, and wait until it's confirmed." Huo Gang replied over there.

After lunch, Han Xin returned to the Public Security Bureau and told Huo Gang and others what he thought.

"Now, the most simple and direct situation is," Han Xin explained, "the murderer was the former owner. After committing the crime, he embalmed the body, and after the house was built, he slowly remodeled it and sealed the body in the house. in the wall."

"Isn't this perverted?" Hu Chen frowned, "What is his purpose for doing this?"

"As you said, it is a kind of morbid psychology." Han Xin replied, "I speculated before that these victims are somewhat similar in appearance, and may be his ex-girlfriend or a woman he loves very deeply. He walled them in and made him feel surrounded and surrounded by them, giving him a sense of security or fulfillment."

"...That's a simple conclusion, what about the complicated one?" Lu Wenbo frowned.

"It's complicated. If the murderer is not the previous owner, it will be troublesome." Han Xin shrugged, "The suspect will embalm the body after committing the crime. The purpose is to prevent the body from being discovered by the owner too soon after it is built into the wall. This shows that he is likely to be an antisocial personality like Su Huilin, and has a very high IQ."

"Indeed, if it weren't for this demolition, who would have known that there were so many corpses in this house?" Wei Bin nodded in agreement.

"If that's the case, it will be very troublesome to catch him." Han Xin raised his forehead in distress, "Like the second case, the murderer obviously has certain anti-criminal means. The crimes were committed in poor and poor areas. And in the past six years, there are likely to be many other victims. Of course, even in this situation, I have ideas..."

So, Han Xin went home and waited for the results of the police investigation.

The criminal police in Shen City arrested the former owner and interrogated him repeatedly.Han Xin also personally checked the interrogation records, but the owner basically did not meet the requirements: he had no knowledge of civil engineering, knew nothing about architecture, and none of his wife, ex-girlfriend, mother, or daughter met those requirements in appearance. characteristics of the victim.

The most important thing is that he has an alibi: when one of the May Day victims disappeared, the previous owner went out of town to visit his daughter, so there is no way he had time to commit the crime.

This case is obviously a serial crime committed by the same killer, so he cannot be the murderer.

And the results of this investigation lead the case to the most complicated situation.

Hu Chen suggested: "Lime powder is more common when building houses, but formalin has to be bought separately. I think we can investigate this aspect."

"There is also a place to dispose of corpses and commit crimes." Wei Bin added, "The murderer will definitely prepare such a place."

"But before that, we need to narrow down the scope of his actions." Han Xin explained on the phone, "Then it's still the same as before, let's check the crimes he may have committed in the past. This time we have more screening conditions .”

Speaking, Han Xin pointed to the photo of the corpse: "From the current situation, it must be because he made mistakes before. He once simply hid the corpse in the wall without special treatment, and the smell of the corpse led to his discovery .”

"I understand, that is to say, we only need to look for those who have found corpses in the walls or foundations, but the cases have not been closed so far, so we can know that it is his case?" Huo Gang suddenly said.

"That's right, but at the same time, we must continue to search for other criminal records according to the previous method." Han Xin warned, "The murderer this time has a very complicated psychology. We need as many cases as possible to understand him."

"...It's really a headache." Huo Gang whispered over there.

But in fact, the scope of the investigation has narrowed down a lot compared to the beginning.

Now they know that the murderer has knowledge in civil engineering, was only 30 or [-] years old, and may have a record of being detained for whoring; Select women who come to the local tourism as the target.

In addition, it is very likely that the murderer had put the corpse in the wall untreated, and the smell was emitted and the police discovered it.

Han Xin even suspected that it was because of this case that the murderer began to move around the country.

These conditions should be enough to screen out some cases from all over the country for them to learn more about the murderer.

After hanging up the phone, Han Xin checked the time, and it was already past eight o'clock in the evening: "The police are going to be very busy recently."

"Why is this person so obsessed with his ex-girlfriend?" Zhao Linshan asked in puzzlement across from him.

"The first experience is always very impressive." Han Xin replied, "His ex-girlfriend must have hurt him deeply, but the two of them did have good memories, so he has a strong feeling for her at the same time." Hate and love."

Thinking of this, Han trusted his chin and muttered: "Love may not be accurate, should it be sexual desire?"

He shook his head: "It's hard to confirm. The situation of this type of murderer is often very complicated. Only after the person is caught can we understand his experience and thinking. This is also the troublesome part of this case."

"Oh, let's not talk about that." Zhao Linshan shook her hand as if to forget about it, then put her arms around his neck and said with a smile: "It's been 24 hours since I had the subcutaneous implant surgery. It's already in effect, huh?"

"Of course I have to experience it." Han Xin kissed her on the face, "I'll take a shower first."

"Or..." Zhao Linshan scratched his chin, "Shall we wash together?"

"This is why the first experience is always so impressive." Han Xin patted her head and joked.

(Monthly ticket thanks list is as follows)
　Thank you for the monthly pass with cold water and sugar cubes and photo chest, and thank you for the happy old funny 2 monthly passes

　　
　
(End of this chapter)