Han Bin asked, "Have you found out the owner's identity?"
"Yes." Zhang Shungu walked to the projector and placed a document on it.
Owner, Lu Zhicun
Mobile phone number, 1583423 XXXX
ID number, 370202199308221125
Address, Wuye Community, Jiuhua Road, South District, Qingdao City.
Zhang Shungu continued, "There is one more thing to note. Lu Zhicun's mobile phone number is still in use and can be located."
Ding Xifeng said, "Then find his location as soon as possible and bring him to the police station to make a statement."
"Yes."
Han Bin then said, "In addition, when Team Leader Zhu investigates the surveillance, pay attention to the time node of 7: 46 and use it as a reference to determine the key investigation time."
"Got it."
Han Bin looked at Ding Xifeng, "Captain, do you have any other instructions?"
Ding Xifeng said, "Based on the existing evidence, the suspect probably entered the victim's home at around 7: 30 to 8: 00 pm, which is not too late in the summer. But in winter, the sky starts to turn dark at 5: 00 pm, and 7: 30 pm is already considered night.
At that time, the victim was accompanied by a dog at home, so it was almost impossible for the suspect to pick the lock. I think it was the victim who opened the door, and it was already night time. If it was someone he didn't know, the victim might not have opened the door.
Therefore, there is a high possibility that it was an acquaintance who committed the crime. When investigating the suspect's surrounding relationships, pay more attention to those who have a motive. "
Ding Xifeng glanced at his watch, "Is there anything else you want to say about this case?"
Some of them shook their heads, and some remained silent.
"Okay, the meeting will end here. Everyone, split up and investigate. Captain Han will be in charge of the specific tasks." Ding Xifeng then looked at Han Bin, "If there is anything, report to me immediately."
"Yes."
Ding Xifeng closed the notebook, "Okay, the meeting is over."
…
Han Bin arranged the tasks in detail and then returned to his office.
He looked through the files of the three cases in detail again. He looked at them carefully and seriously.
The victims of these three cases all had moral flaws, but they were not illegal, and the law could not punish them. On the surface, it seemed that this was a condition for the murderer to find a target.
Han Bin used the traces left at the crime scene to deduce the criminal's behavior pattern, further deduced the psychological characteristics, and then deduced the suspect's next behavior characteristics.
However, through the analysis of the three cases, Han Bin found that other than the appearance of moral flaws and Z Beauty, the three cases did not fit the psychological profile of a serial killer.
He was more inclined to copycat or hire killers.
First of all, after the 821 case, some of the details and modus operandi were revealed. The latter would continue to commit crimes according to the model of the 821 case. The purpose was to shift the crime and the direction of the police investigation to the 821 case.
A copycat only imitates some appearances, but his psychological characteristics are not the same as the real murderer's, and his behavior will also be different.
As for hiring people to kill, the method of killing was the same, but the purpose of the killing was for money. The murderer would kill whoever gave the money. Choosing a target was not based on the murderer's subjective consciousness, so his psychological characteristics naturally did not match that of a serial killer.
Han Bin used the elimination method. If it was a copycat, then the copycat would be the second and third cases.
The first murderer was called the original murderer, and the copycat was called the copycat.
The killing pattern of the three cases was the same, which meant that one of the murderers committed two cases.
Then there were only three possibilities.
The first and second cases were committed by the original murderer, and the copycat only committed the third case.
The first and third cases were committed by the original murderer. The second case was committed by the copycat. The original murderer felt offended and committed the third case.
The first case was committed by the original murderer, and the next two cases were committed by the copycat.
In response to these three possibilities, Han Bin analyzed the traces of the three cases again, but found that these three possibilities were still not established. None of the two cases matched the essential characteristics of a serial killer.
There were only two possibilities in this result. The first possibility was that there was a second copycat, and the three murderers each committed one case.
The second possibility was that these three cases were not copycat.
Han Bin felt that the possibility of two copycat murderers was extremely small, and it was more inclined to the latter.
Then there was only one possibility left, a hired killer.
This hired killer was very smart. He deliberately pretended to be a serial killer to cover up the real purpose of the murders, and to protect his employer. As long as his employer did not expose himself, his business network would not be exposed, and he could continue to hide.
After the murderer received the task, he would look for moral flaws in the target and use this moral flaw as a reason to kill the victim. This would lead the direction of the police investigation in another direction, and prevent the police from tracking down the mastermind.
Perhaps some people would think that it was too much of a coincidence that all three targets of the murderer had moral flaws.
In fact, this situation could be reversed. It was not easy to find a good classmate in a normal school, but if you went to Tsinghua University, you could find one with your eyes closed.
Similarly, if a person was deeply envied and hated, to the point of risking his life to hire someone to kill, there would definitely be some flaws in the person who was killed.
It was not difficult for a killer to find a reason.
Although there was no real evidence, Han Bin still believed in his own judgment. He was ready to change the direction of the investigation. He could not be led by the nose by the murderer, and investigate the case with a hired killer.
A hired killer was different from a passionate killer.
The victim and the murderer would have a deep connection, either through feelings, hatred, or a huge conflict of interest.
Professional killers had a certain anti-reconnaissance ability, and it was not easy to track them down.
The victim must know the mastermind, and the investigation could start from the victim's surrounding relationships.
…
At five o 'clock in the afternoon, Han Bin received a call to report that Lu Cunzhi had been found.
When Han Bin rushed to Team Two's office, Zhang Shungu was already taking the statement.
"Captain Han."
"Captain, you're here."
"You guys continue." Han Bin pulled a chair and sat down.
Zhang Shungu and Feng Na were taking the statement of a young man. The man was wearing a work uniform, and he looked like an employee of Jingdong Express.
Zhang Shungu continued to ask, "Lu Zhicun, is the number 1583423 XXXX yours?"
"It is mine, but my phone was stolen. I got a new number this morning. "
"When was your phone stolen?"
Lu Zhicun thought about it, "It should be around seven o 'clock last night. I'm not sure about the exact time."
"Where did you lose it? How did you lose it? "
"I lost it in Changdao District, Nongye Road, at the entrance of Yongxi District. I'm a courier, and I'm in charge of all the deliveries in that district. I pulled a truck of goods and stopped at the east gate. I called the courier, and I unloaded the goods from the truck, waiting for them to pick it up at the east gate. "
"I have two phones. One is a smart phone, and I use it to contact my family. The other is an old-fashioned phone, given to me when I charge my phone, and I use it as a work phone. I remember that after I contacted the courier, I put the work phone on the tricycle, and I used the smart phone to watch videos. "
"Because of the nature of my work, I often receive calls from my work phone, but after I watched the videos, I realized that I hadn't received any calls for a while. I felt that something was wrong, so I looked for my work phone, but the phone on the tricycle was gone.
At that time, I didn't expect to lose my phone. That stupid phone can't even be sold for tens of yuan. Who would steal it? But after searching for a long time, I couldn't find it. I called the number, but I couldn't get through. I knew that the phone was really stolen. "
Speaking up to here, Lu Zhicun sighed and said in annoyance, "Who do you think would be so immoral to steal this broken phone? I was so angry at that time because this is my work phone. Without this phone, how am I supposed to contact my clients?"
But it was already seven o 'clock, and the business hall was closed. I couldn't get a new number even if I wanted to. I could only wait for one night, and went to get a new number early the next morning. I didn't even have time to eat lunch, and finally finished the remaining deliveries. "
Zhang Shungu asked, "Yesterday, did you go to Moxiang Academy District?"
"No."
"Do you know a man named He Jun?"
"I don't know."
"Between 7: 46 and 11: 00 last night, where were you?"
"I returned to the company at seven o 'clock, explained the situation to our supervisor, and invited him to dinner. I went home at nine o' clock in the evening."
Zhang Shungu asked, "What's the name of your supervisor? Who else in your family … "
Han Bin sat on the side and didn't speak. He just listened quietly, and he basically understood Lu Zhicun's situation.
First of all, this case was so complicated. Except for that mobile phone number, Lu Zhicun had nothing to do with this case. If he was really the murderer, it was impossible for him to expose himself in such a low way.
Han Bin was more inclined to believe his words.
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