At this time, police officers Xiao Wang and Xiao Zhang found Lin Xuan.
"Team Lin, we conducted an investigation on Zhou Zeqiang's teacher Su You overnight last night and found some doubts!" Xiao Wang said.
"What do you say?" Lin Xuan waved to Zhang Xiaofan, who immediately came over to take notes.
"This Zhou Zeqiang left the school twenty days ago because he wanted to go home for medical treatment. Therefore, if we want to summon him, we need your order, Captain Lin!" Xiao Wang replied.
"Twenty days ago, that is, one or two days after the incident, this is indeed suspicious!" Lin Xuan thought for a moment, then looked around and saw Ye Mo coming out of the office. She immediately walked over and called him over.
"Ye Mo, the investigating police said that Zhou Zeqiang left Petroleum University twenty days ago!" Lin Xuan said.
Ye Mo frowned immediately after hearing this. He looked at Xiao Wang, the policeman handling the case: "Have you investigated the key points I asked Captain Lin to explain to you?"
"After investigation, it turns out that Zhou Zeqiang doesn't have a good reputation among his classmates. He likes drinking, smoking, and even gambling. He was even penalized once by the school," Xiao Wang replied.
"What's the reason for the demerit?" Ye Mo asked.
"Drunk fight!" Xiao Wang said.
"How is his physical fitness? How is his climbing ability?" Ye Mo asked.
"The physical fitness is very good. I once represented the school in sports competitions and won first place in the obstacle course. Especially in the climbing obstacle event, it broke the record." Xiao Wang replied.
"He loves to drink, has violent tendencies, is good at climbing, and left the local area the day after the incident. How does this look suspicious?" Ye Xiaoyu said at the side.
"No matter what, contact Zhou Zeqiang first and summon him over!" Ye Mo said.
"Okay, I'll do it right away!" Ye Xiaoyu nodded.
…
At this point in the case, it seems that Zhou Zeqiang has become the biggest suspect.
There is a motive for the murder.
He also has all the characteristics of a suspect.
But Ye Mo always felt something was wrong.
"Captain Ye, if there are no accidents, this sophomore named Zhou Zeqiang is most likely the murderer, right?" Zhang Xiaofan asked.
"Currently, he is suspected, but I think he is probably not the murderer!" Ye Mo said.
"We have a motive for the murder, and the suspect's characteristics are the same as his. Is it possible that there are some flaws in this?" Zhang Xiaofan was very curious.
"Think about it, a man who could kneel down to Liu Guihong and let her humiliate her for money, why didn't he take away her belongings after killing Liu Guihong? The gold ring on her body was appraised to be worth more than 6,000 yuan. Our annual You can't even buy it with a salary." Ye Mo said.
"Is it possible that Zhou Zeqiang was too nervous after killing someone?" Zhang Xiaofan asked.
"According to the information I have, the murderer was not nervous after the murder, but acted as if nothing happened. His purpose was just to kill the victim, not for money!" Ye Mo said.
"But if I were Zhou Zeqiang, I would also like to kill her. After all, kneeling down in public and being slapped dozens of times is completely unacceptable for a man." Zhang Xiaofan said.
"Then since you have a grudge and have already planned to kill her, why did you choose such a complicated killing method?" Ye Mo asked.
As soon as these words came out, Zhang Xiaofan suddenly understood.
If he were Zhou Zeqiang, if he wanted to kill Liu Guihong, he would not choose to push her over and hit the billboard on a snowy day. After hitting her several times, he would knock her unconscious with a stone, and finally cut her head with a stone.
Even if you carry a hammer or a fruit knife with you, it will be more useful than this.
Anyone who kills someone in this way must do it on the spur of the moment.
The murderer was unpremeditated and unplanned.
Of course, it cannot be ruled out that on the day of the incident, Liu Guihong took Zhou Zeqiang to buy aphrodisiac Chinese medicine, and there was some kind of dispute when they came back.
"By the way, Xiaofan, I asked you to go to the bus company to investigate the driver. How did your investigation go?" Ye Mo asked.
"The driver of that shift that day happened to be hospitalized due to kidney stones and will not be back to work until tomorrow, so the investigation can only be carried out tomorrow." Zhang Xiaofan said.
"Okay, thank you for your hard work." Ye Mo said.
"It's you and Captain Lin who have worked hard. It's all thanks to you two that the case has progressed so quickly." Zhang Xiaofan said.
"No, this is a collective effort. Without everyone, this case would never be solved!" Ye Mo said.
Ye Mo is not a selfish person, nor is he a self-centered person.
He knew very well that nothing could be accomplished on this case by himself.
The rapid progress of the case is the result of everyone’s hard work!
…
Next, all that needs to be done in this case is to wait!
Due to the shortage of case investigators, you cannot solve the case in several directions at the same time.
Otherwise it will be a huge waste of time.
Since the biggest suspect now is Zhou Zeqiang, let's investigate this person clearly first.
So, now we can only wait!
Waiting for Liu Guihong’s DNA comparison results, waiting for Zhou Zeqiang’s summons, and waiting for the hospitalized bus driver to return to work!
In 2006, DNA research had made great progress.
Scientists use PCR technology to amplify target fragments from very small DNA samples, making genetic analysis more convenient.
Liu Guihong's DNA information has already been collected, and she just needs to compare it with her brother's.
The process is quick and can be completed in just a few minutes.
At noon, news came from the Technology Department that through DNA comparison, the genetic relationship between Liu Guihong and Liu Guiyun was confirmed.
The identity of the victim was none other than Liu Guihong.
So, Ye Mo immediately sent someone to investigate Liu Guihong's residence and contact Liu Guihong's family.
Liu Guihong has a younger sister who married in Lefeng City, which is less than 300 kilometers away from Ninghai City.
Therefore, the Public Security Bureau immediately contacted Liu Guihong’s sister Liu Guifang and asked her to come and claim the body and assist in the investigation!
…
In the afternoon, the police handling the case received news.
In the house where Liu Guifang registered her permanent residence, the police found a safe. When they opened the safe, they found more than 300,000 yuan in cash, countless gold bars, and several passbooks.
I took the passbook to the bank for investigation and found that there was still more than two million yuan in deposits in the account!
Therefore, everyone became even more curious about the origin of this woman Liu Guihong!
What on earth does she do to be so rich?
And the most outrageous thing is that in the public security system, she was listed as unmarried.
There is no record of her marriage.
There is no record of children.
But the autopsy report showed that she had given birth.
So, where is this kid?
Who is the child's father?
Why does Liu Guihong, a native of Nanyun, live in Ninghai City?
All kinds of doubts need to be solved step by step!
…