One day thirteen years ago, Cao Kuan came home from school and saw his father pressing his mother to the ground and choking his neck. Cao Kuan was very scared, but he was even more afraid that his father would beat him, so he hid behind the door and didn't dare to go out.

Mom was finally strangled to death by Dad, and her hands hung down, but Dad didn't relieves his hatred, he dragged Mom out of the door, and saw Cao Kuan standing there.

"What are you doing with this stinky boy? "Dad didn't expect Cao Kuan to be here, and he wasn't sure if he saw everything.

"Is Mom dead?" Cao Kuan didn't cry, but was very calm, in his heart Mom and Dad were dispensable people, he was just worried about whether Dad would care about him after Mom died.

"Listen, your mother is a bad woman, do you know what a bad woman is?" Dad pressed Cao Kuan's shoulder and asked him urgently.

Cao Kuan shook his head, what is a bad woman?

"Your mother is a bad woman, she went to steal men and betrayed me, Jia

Woman!" Looking at the green tendons bursting out of his father's forehead, Cao Kuan nodded, he understood, someone who steals a man like his mother and betrays his father is a bad woman.

"Bad women should die, they should ......" Dad looked around, and finally fixed his eyes on the pigsty, "she should be spoiled by pigs, eaten by pigs, and then she can be relieved!" Dad finished throwing Mom into the pigsty, and the hungry pigs began to gnaw on Mom's corpse.

Cao Kuan listened to the snorting of the pig, and he understood that if he treated a bad woman, he should feed the pig and be eaten by the pig before he could be punished.

Later, my father told the people in the village that my mother had accidentally fainted in the pigsty, and that he and Cao Kuan were not at home, so my mother was eaten by pigs. The people in the village only cared about this terrible news, and did not think about it at all, and the matter passed. Later, when they moved, they were gradually forgotten. But in fact, his mother just talked a few more words to other men.

Thinking about these past events, Cao Kuan felt a little headache. At the beginning, he also imprisoned Wu Mei because she was a little close to a male colleague. But Wu Mei said that she cuckolded herself, so what is the difference between her and her mother?

"I didn't expect you to be a bad woman too. Cao Kuan looked at what Wu Mei left behind and said, "Dad is right. ”

When Lin Mu received Liang Xin's call, he was seeing Cao Kuan feeding stray dogs. "Officer Lin, you guessed it right, Cao Kuan is indeed the son of Cao Lianshan thirteen years ago, but his father has died. ”

"Was his mother really killed by a pig?"

According to the people in the village, his mother fainted in the pigsty and it was too long to verify. ”

"Oh......" Lin Mu hung up the phone, and Cao Kuan just stood up and teased the puppy.

Cao Kuan...... Pigsty ......" Lin Mu looked at Cao Kuan's smile and felt a little scary. He decided to go and meet Cao Kuan for a while.

On Cao Kuan's way off work, Lin Mu took the initiative to stop him and offered to walk together.

"You were from Caojia Village when you were a child?"

"yes, a long time ago. Cao Kuan stopped and sat in front of the convenience store.

"How did your mother die?"

"I believe the police officer has already investigated clearly, so I don't need to say it. Cao Kuan looked at the street lamp opposite, and smiled sadly, "It's not good to uncover people's scars." ”

"Don't you think it's too much of a coincidence?" Lin Mu decided to get straight to the point.

"Yes, it's normal for the police officer to suspect me, after all, these two cases are very similar, according to your observations in the past two days, do I look like a murderer?"

Lin Mu was a little surprised, how could he know about following him? Seeing that Lin Mu didn't speak, Cao Kuan continued, "The police officer's tracking skills are not very good. ”

"It is necessary to investigate who made Wu May stay with you all along. ”

"Then you can continue to investigate, and I will cooperate. Cao Kuan smiled quite frankly at Lin Mu.

"Don't worry about it, it's a process we have to do with the police. Lin Mu pointed to the convenience store and said, "I'll treat you to something to eat." ”

Although Cao Kuan was puzzled, he had no choice but to agree, in his opinion, this stupid policeman would not be able to find himself.

The two of them each made a cup of instant noodles and sat down at the convenience store to eat it. "I'm so sorry that I said I would like you to eat something and ended up eating this. ”

"The officer is so gracious. "Cao Kuan has a mouthful to eat, who wants to eat with you?" Thinking like this, Cao Kuan took a sip of soup and put it down. "It's not early, I have to go to work tomorrow, officer, go first. ”

Cao Kuan got up and threw the instant noodle bucket into the trash and walked out of the convenience store. Lin Mu saw him walking away, and hurriedly scooped up the instant noodle bucket and packed it in the plastic bag he had prepared. The clerk was stunned when he saw his actions, and Lin Mu smiled embarrassedly and walked out with a piece of garbage.

"It's strange for this guy to be so well-dressed and pick up garbage, hey...... I don't understand. The clerk watched Lin Mu drive away, muttering to himself.

When Lin Mu brought the instant noodle bucket back, everyone was very excited. "Team Lin really has you, and you really got Cao Kuan's DNA. ”

"Don't talk about it, just wait for the results now. ”

Just when Liang Xin called him, Zhen Zheng grabbed the phone and told him a major clue: "Lin Mu, you have to thank me this time!"

"Tell me something. "This Zhen Zheng has to say a bunch of nonsense every time.

"Under the careful and professional operation of my forensic doctor, I found some skin and soft tissues that did not belong to her between the teeth of the deceased Wu Mei. It should be the murderer's. Don't you suspect that Cao Kuan? Find a way to get some of his DNA back and compare it......"

After that, under his boasting for a long time, Lin Mu hung up the phone. Now, it's time to compare the results. Lin Mu remembered that Cao Kuan said that day that his tongue was bitten, was it really such a coincidence? There was something between the deceased's teeth that did not belong to him.

The comparison results came out, and it was confirmed that it was Cao Kuan's DNA. Hearing the news, Lin Mu happily high-fived Zhen Zheng. I have to admit that he does have a set.

Thirteen years ago, Cao Lianshan, pigsty. Today's Cao Kuan, Wu Mei. These clues are almost connected. Lin Mu immediately led people to arrest Cao Kuan.

At this time, Cao Kuan, who was full of confidence, did not expect that Wu Mei had already left clues in his body.

"Cao Kuan, now I suspect that you are related to a homicide case, please cooperate with us to return to the police station to assist in the investigation. Cao Kuan slowly stood up from the computer, he couldn't be nervous. Dad used to tell him that the more nervous he was, the easier it was to show his feet.

"What evidence does the officer have?"

"We found your DNA in the mouth of the deceased, how do you explain it?" Cao Kuan suddenly understood that Wu Mei had bitten him, and he was careless.

"Maybe it's from before, but we're a couple. Cao Kuanming knew that this explanation would not work, but he was still dying.

"Then you can show us the wound on your tongue, and we can tell when the wound was formed, Mr. Cao, please. ”

Cao Kuan's back was wet with sweat, and he knew that he would have started two days late, and he was impulsive.

"I ...... We once met, and we couldn't help but ...... "Cao Kuan obviously has no confidence, but so what, he must deceive everyone like his father."

"You didn't say that before, my colleague can testify. ”

"You...... You can collude confessions, and it's easy to frame me ......"

"Yes, my other colleagues have already gone to your house, and I believe that the results will be soon. "Yes, Cao Kuan secretly screamed that it was not good, although the house had been cleaned up, but the chain that had been tied to Wu Mei had not been thrown away.

The woman had scratched the skin on her hand in order to escape. It was intended to be kept as a memento, but now it has become evidence of his crime.

After Lin Mu answered a phone call, Cao Kuan knew that there was no way back, and he tried to escape in vain, but there were many policemen around the door of the company. He was horrified to find out how he had been exposed.

"Last night you said you invited me to eat...... That's what it meant. Cao Kuan pointed at Lin Mu angrily, he underestimated him. That's right, blame yourself for doing it too obviously. In order to pay tribute to his deceased father, and in order to feel guilty that he had found a bad woman, he chose to return to Caojia Village to throw his body.

The police detained Cao Kuan and took him back to the police station.