Solving the case: Combining the police dog's olfactory genes at the beginning

Cheng Wei looked at himself in the surveillance video and determined that it was the video of him leaving that night. His face was livid and he did not speak.

"And this, this is the shoe print you left on the iron railing behind the community. We have compared it. It is the shoe print you left." Luo Fei said and threw out two more pictures from the technical room. Photographed shoe prints.

The expression on Cheng Wei's face was even worse.

"And this, this is your online shopping record in the past three months. On January 7th, you bought a knife online, which is the same model as Lin Gang's."

"Now you can explain to us why you appeared there on the night of the crime. Didn't you say you were with your girlfriend? And why did your shoe prints appear on the iron railing behind the community? How could you do that? Buy a knife exactly like Lin Gang, where is this knife now?" Luo Fei asked coldly.

"I don't know." Cheng Wei leaned on the chair, his livid face slowly returning to normal.

Luo Fei stared at Cheng Wei expressionlessly. Cheng Wei's attitude made it clear that he wanted to fight to the end and refuse to admit it.

"Cheng Wei, do you think you'll be fine if you don't admit it? With the evidence currently available to the police, they can charge you with murder. It doesn't matter whether you admit it or not." Luo Fei said coldly.

Cheng Wei still leaned on the chair and said nothing.

Luo Fei looked at Cheng Wei coldly. The evidence currently available to the police was indeed enough to prosecute Cheng Wei, but there was still one thing missing, which was the motive for committing the crime. Why did Cheng Wei kill Cheng Zhiyou? If you can't find the reason why Cheng Wei killed Cheng Zhiyou, even if you can sue, the probability of losing the case is very high.

What was Cheng Wei's motive for committing the crime?

Luo Fei and the others previously suspected that Cheng Zhiyou abused Cheng Wei, but after investigation, they found out that this reason was untenable at all. From Cheng Zhiyou's relatives, friends and neighbors, they learned that Cheng Zhiyou was a kind man and did not hit Cheng Wei at all.

Then why did Cheng Wei kill Cheng Zhiyou? For a son to kill a father, he must either hate the father very much or have a perverted antisocial personality.

Judging from Cheng Wei's performance, the possibility of the latter is relatively low, which means that Cheng Wei should be the former. He hated Cheng Zhiyou so much that he killed him.

Then why does Cheng Wei hate Cheng Zhiyou so much?

For a son to hate his father so much, Cheng Zhiyou must have done something, and it was something that Cheng Wei cared about so much that it even made Cheng Wei want to kill his father.

What a normal person cares about most is family affection and love. Apart from these two, what else is there?

love?

It doesn't look like it. Luo Fei has seen Zhao Yi, and from the conversation, he can know that there is no problem with the relationship between Zhao Yi and Cheng Wei. It shouldn't be that the bloody father violated his son's girlfriend, and the son killed his father in revenge. Drama, and the most important thing is that the relationship between Cheng Wei and his father has not been good since childhood, which means that Cheng Wei may have had the intention to kill Cheng Zhiyou since he was young. Cheng Wei probably didn't even know Zhao Yi at that time.

Family affection?

Suddenly Luo Fei remembered that when he was investigating the neighbor of the deceased, the neighbor said that the relationship between Cheng Wei and his father had not been good since childhood, and Cheng Wei's mother died of cancer when Cheng Wei was very young.

Could it be that Cheng Wei's hatred for his father is related to his mother? Luo Fei suddenly had this thought in his heart.

"Cheng Wei, I know you hate your father because of your mother?" The next moment, Luo Fei suddenly said, staring at Cheng Wei, he wanted to verify this idea.

Sure enough, when Cheng Wei heard Luo Fei's words, his emotions obviously fluctuated greatly. Although he tried to keep his face calm, his slightly trembling lips had betrayed him. Luo Fei was sure that Cheng Wei's killing of Cheng Zhiyou was related to Cheng Wei's mother has a great relationship.

Then a bolder guess emerged in Luo Fei's mind. Cheng Wei hated his father so much that he even wanted to kill him. Could it be that the death of Cheng Wei's mother was related to his father.

"It was your father who killed your mother, that's why you hate Cheng Zhiyou so much and even want to kill him, right?" Luo Fei stared at Cheng Wei and continued to ask.

Hearing Luo Fei's words, Cheng Wei's face turned red, and the veins on his neck stood out. He grabbed the desk in front of him with both hands. It was obvious that Luo Fei's words deeply stimulated him and put his emotions on the verge of explosion. .

Seeing Cheng Wei's reaction, Luo Fei knew that he had guessed correctly. Cheng Zhiyou should have killed his wife. Cheng Wei happened to know about it or even saw it. Then this incident became something that Cheng Wei could never forget. of pain.

"You killed Cheng Zhiyou to avenge your mother, right?" Luo Fei continued to stimulate.

"That's right, I killed him, and he deserves to die. Can you imagine a husband actually killing his wife with his own hands in order not to let her drag him down?" Cheng Wei said loudly, tears slowly flowing down his cheeks. Slow flow.

"My mother had cancer. She could obviously go to the hospital for surgery, but when he knew that the surgery would cost a lot of money and that he would also need to spend money on chemotherapy after the surgery, he gave up. Instead of taking my mother for surgery, he just casually I bought some medicine for her to take. As the days passed, my mother's health became worse and worse. She could only lie in bed and needed help eating and going to the toilet."

"His attitude towards his mother is getting worse and worse. Sometimes he pretends not to hear when his mother calls him. There are many times when his mother wants to go to the toilet, but he pretends not to hear. The mother has no choice but to do it. Whenever her mother calls him, he pretends not to hear her. Everyone will feel so ashamed that life would be worse than death."

"From that time on, I became disgusted with him. He is a hypocritical and shameless guy. He wears chameleon's clothes. He does one thing in front of others and another behind others. But if that's all, that's it. But he is not only a hypocrite. Shameless guy, he is still a beast."

"That day was Children's Day. I received the certificate for being a good student. After the event, I couldn't wait to go home with the certificate. I wanted my mother to know that I had received the certificate. My mother would be very happy and proud of me. When I was a child She loves me the most, but when I ran into the house, opened the bedroom door and ran in, and saw the scene in front of me, my mind was completely blank."

"That bastard was holding a pillow to cover my mother's mouth and nose. I saw my mother's hand grabbing his arm. My mother was struggling, but she couldn't get away. I was like a Coward, I was so scared that I stood there stupidly and did nothing, watching that beast kill my mother in front of me."

"I regret so much, I regret that I didn't do anything at that time. If it were possible, I really want to go back to that point in time, give my cowardly self a slap in the face, and then stop that beast from killing my mother. , but there is no if.”

"Do you know what that beast said to me after he killed my mother? He first threatened me and said that if I told this matter, he would beat me to death. Then he told me that all this was For my sake, he said that if he didn’t do this, sooner or later my mother would drag us both to death. He also said that my mother’s life would be worse than death, and death would be better than life.” Cheng Wei burst into tears as he spoke.

Luo Fei frowned, not expecting that there was such a hidden secret behind Cheng Wei's murder of Cheng Zhiyou.

"Wipe it." Seeing Cheng Wei's face covered with tears, Luo Fei handed over a tissue.

Cheng Wei took the tissue and continued: "I was still young at that time, and I was very timid. I was afraid that the bastard would kill me like he killed my mother, so I never dared to tell anyone else about it. But I secretly swear in my heart that when I grow up, I will definitely avenge my mother."

"It's been so many years since your mother left. Has the hatred in your heart not changed at all? And why are you thinking of killing Cheng Zhiyou now!" Luo Fei asked doubtfully. Logically speaking, so many years have passed. , no matter how much we hated each other at the time, no matter how strong the hatred was, it would be diluted by time, not to mention that the two of them were still father and son and had been with each other for so many years.

"I have never forgotten the matter of revenge, and I had planned everything a long time ago. I was just waiting for an opportunity. That bastard won 100,000 yuan on the Spring Festival day. I felt that the time had come, so I started my plan and I successfully killed Cheng Zhiyou, but I didn’t expect that the police would find me. I really thought that my plan was perfect. I had thought that after killing Cheng Zhiyou, I would marry Xiao Yi and then take Xiao Yi away. This place, I want to live in a place with the sea, but now I can't realize this wish." Cheng Wei's mood slowly recovered.

"What about the murder weapon?" Luo Fei asked.

"The murder weapon is under the bed in my girlfriend's room, but this matter has nothing to do with her. She doesn't know anything." Cheng Wei's expression became nervous as he spoke.

It was actually at Zhao Yi's house. Luo Fei, Wang Yong and others went to Zhao Yi's house at that time, but at that time Luo Fei never thought that Cheng Wei would do it himself, nor did he think that a murder weapon would be hidden in Zhao Yi's house, so it was simple After questioning Zhao Yi, he left without checking the room at all, thus missing the opportunity to find the murder weapon.

"Zhao Yi should know that you want to murder Cheng Zhiyou!" Luo Fei asked calmly.

"I don't know, Zhao Yi doesn't know anything at all. She is so simple and I didn't tell her anything." Cheng Wei shook his head vigorously and said. At this time, he was still thinking about the other party. It could be seen that Cheng Wei was serious. Care about Zhao Yi.

Luo Fei looked at Cheng Wei with a complicated mood.

You say Cheng Wei is bad! He was really bad. He encouraged his friends to steal money and wanted to put the blame on them. He planned to kill his father.

But do you want to say that he is that bad? It doesn't seem to be bad in the end.

He killed his father because his father killed his mother and he wanted to avenge his mother.

His love for his mother and his love for his girlfriend are both sincere.

It can only be said that fate plays tricks on people.

outside the interrogation room

"What are you talking about? My son killed me, and I killed my wife? That's ridiculous." Zhao Donglai couldn't help but complain.

"Yes! It's indeed very complicated, but once the murder weapon is found, this case will be over." Yang Su sighed heavily.

At this time, Luo Fei and Sun Jun also walked out of the interrogation room.

"Team Zhao, team leader." Luo Fei greeted, but his eyes turned to Yang Mei who was behind Zhao Donglai. He had promised to invite Yang Mei to watch a movie, but he saw the interrogation room coming.

Yang Mei saw Luo Fei looking at her, his eyes turned to the other side unnaturally, and his face was slightly red.

"Thank you for your hard work." Zhao Donglai patted Luo Fei on the shoulder.

"It should be." Luo Fei replied.

"In this way, you, Yang Mei, Wu Xiaoyue, and Sun Jun will go to Zhao Yi's house again and bring back the murder weapon and Cheng Wei's girlfriend Zhao Yi for interrogation. I suspect that Zhao Yi is also involved in this murder." Zhao Donglai gave orders.

"Yes" Luo Fei said firmly. Luo Fei had seen Zhao Yi that day. Zhao Yi had a black aura on his head but it was very light. Obviously Zhao Yi should know that Cheng Wei wanted to kill Cheng Zhiyou, and he must also know that Cheng Wei hid the murder weapon in Zhao Yi entered her room, but she chose to hide it for Cheng Wei. It was obvious that Zhao Yi had committed the crime of covering up.

After leaving the interrogation room, Luo Fei drove the police car, and the four of them drove to Zhao Yi's residence.

Luo Fei originally wanted to say that if Yang Mei sat next to him, he could still have a conversation with Yang Mei, but Sun Jun's stupid head would not cause any trouble. He just said that the girls should sit together, and he sat directly in the passenger seat, leaving Yang Mei and Wu Xiaoyue Sit in the back row.

Not long after, the four of them arrived at Zhao Yi's residence, where Zhao Yi was painting.

When he saw Luo Fei and others coming to the door, Zhao Yi suddenly realized that something had happened to Cheng Wei, and his face turned pale.

Luo Fei then found a knife exactly like Lin Gang's under the bed in the bedroom.

At this time, Zhao Yi was completely sure that Cheng Wei had been caught by the police, because no one except her and Cheng Wei knew that the knife was hidden under the bed.

"Ms. Zhao, we suspect that you are related to the murder of Cheng Zhiyou. Please come with us." Yang Mei said.

"How is Cheng Wei?" Zhao Yi asked softly, his voice was very gentle.

Yang Meidao: "Cheng Wei has explained everything."

When Zhao Yi heard this, he bit his lip gently and his face became even paler.

As soon as he returned to the criminal police team, Zhao Donglai asked Luo Fei to interrogate Zhao Yi.

Zhao Yi had no refutation of her cover-up of Cheng Wei. She admitted that she knew that Cheng Wei wanted to kill Cheng Zhiyou and that she also knew that Cheng Wei hid the murder weapon in the room.

At this point, the murder case of Cheng Zhiyou has been completely solved.

On the sixth day of the Lunar New Year, the criminal police team held a case summary meeting.

At the summary meeting, Zhao Donglai emphatically praised the third group and the technical room. Both squadrons contributed a lot to the solution of this case. Of course, the third group that made the greatest contribution was Luo Fei's third group. Everyone knew this.

When Zhao Donglai praised Luo Fei, he also secretly poked at the other squadron leaders and asked them to learn more from Luo Fei, which made the other squadron leaders have a lot of resentment towards Luo Fei.

Cheng Zhiyou's case also brought Luo Fei 400 gold coins. In addition to the remaining 200 gold coins, Luo Fei currently has 600 gold coins. However, if he wants to redeem the next fusion gene, he still needs to solve at least three more cases. , the accumulation of gold coins is indeed much slower than before, but Luo Fei is not dissatisfied. With the Eye of Sin, it is only a matter of time before he saves gold coins to buy fusion genes.