In the evening, after dinner at Li Jing's house, I went back to the supermarket to take duty, and Li Jing went to the ward to see the victim's condition. Watching the TV series, I saw that in the middle of the night, Li Jing pushed the door and came in, looking at his expression, it should be no gain.

"Didn't ask anything, did you?" I couldn't help but tease him.

I glanced at me too much and didn't speak, and at the end of the sentence: "After the shift is handed over at 8 o'clock, pack up our things and let's go to Q City." ”

"Can you not go?" Although I knew that the answer couldn't be the same as mine, I still didn't give up asking.

"The train will leave at 9:27 tomorrow, let's do the subway over, we should be able to catch up. Let's have breakfast on the train. I'll go back and rest first, and I'll be waiting for you at the gate at 8 o'clock. ”

Well, the plan to go shopping tomorrow has come to naught.

We finally got on the train before it left, and I couldn't even breathe. After calming down for a long time, I bit the chocolate fudge and asked him, "The victim is from Q City?" ”

"No, it's not. Q City has no connection with this case at all. Li Jing looked dazed.

"Then you have a lot of time to investigate the clues, are you dragging me to see the scenery?" It has nothing to do with the case, what are you dragging me for, on vacation?

"It has nothing to do with the case, but one of my supervisors from graduate school now lives here, and asking him will give me a lot of inspiration."

"Then you can call him, you don't have to run over." Sure enough, Li Jing's brain circuit is different from that of normal people.

"My mentor didn't have a phone, and we usually used letters to get in touch." Receiving my surprised eyes, Li Jing smiled, "Isn't my mentor's life very retro?" ”

"Are you sure he's not a caveman?"

The streets of Q City are sloping and lined with beautiful foreign buildings, and you can see the sea 2 stops from the train station, because it is a weekday and there are no people on the beach. We got out of the car and walked along the seaside to a residential area. Stopping in front of a small Danish-style building, Li Jing explained his intention to the porter, who opened the door, and we climbed the old-fashioned steps all the way to the second floor, stopping at the door of a room.

Li Jing knocked on the door: "Teacher Lu, are you at home?" ”

"Who?"

"I'm your student Li Jing."

1 minute later, the door opened and a balding old gentleman beckoned us in. The room is not large, one bedroom and one living room, and there are piles of books everywhere in the room, and on the desk in the living room is an original novel "The Grass of the Night" by the French writer Modiano.

"Is the teacher learning French?" Apparently Li Jing also noticed the book on the table.

"Haha, I want to pick up the foreign language I learned before when I have nothing to do lately, but it's you kid, why do you have time to come to see me today?" Mr. Lu poured water for us, he looked to be in his 60s, very tall and strong, his voice was full of energy, and his laughter was also very hearty, which was very different from his student Li Jing, "Did you bring your girlfriend over and let me give it to the staff officer?" ”

"Teacher Lu, you think too much." Li Jing and I said in unison,

"Don't be embarrassed, young people." Mr. Lu, I think the evaluation I just gave you is based on the illusion at first glance, can I withdraw the praise.

"Teacher Lu, I am looking for you today to ask for your help if I have a case."

"Call me for help, I'm not a policeman." Teacher Lu smiled.

"No, it doesn't have much to do with the case, it's about psychological counseling. Two days ago, we received an injured person in the hospital, who was seriously injured by violent abuse, but because of a blow to the head, retrograde memory loss, we could not get clues about the suspect from him, because now the suspect is becoming more and more mentally unstable, and we hope to be able to find him as much as possible and prevent him from hurting people next time. ”

"Tell me about it." Teacher Lu spread out a blank piece of paper.

"According to the information we have, we found that the suspect's murder route was from south to north, and the interval between each case was about half a year, but the last case and the previous case were committed for less than two months, and it can be found that the suspect must have received some kind of stimulus to shorten the time of the crime. And as the violence increases in each case, it can be concluded that the suspect is no longer satisfied with simply injuring others, and we speculate that if the suspect continues to succeed in the next case, the victim may be more than seriously injured. It is worth noting that he called the police for the victim at the end, which I think is a way of atonement for his own mistakes. ”

Teacher Lu nodded: "Do the victims have anything in common?" ”

"The family is harmonious, the job is stable, and the income is good, we guess it is because the suspect's jealousy psychology leads to hurt." Li Jing opened the small notebook in which he had made records.

After taking a sip of tea, Mr. Lu shook his head and said, "Li Jing, you have ignored one point, the suspect has a violent tendency, and how remorse he will be for his actions after committing violence, from this point, the suspect may have suffered physical torture in his childhood." Brain damage, hostility, and physical devastation experienced in childhood are the three main factors that lead to violent tendencies in adulthood. Of these, 60 per cent of those who used violence would physically or verbally attack others. The suspect had endured severe domestic violence in his childhood and adolescence, and his current behavior is a form of defiance, a form of assertion of power. ”

"The previous victim revealed in the transcript that the suspect was thin and weak, and that he had tied their hands and feet by beating them, which shows that in the suspect's mind, he is still unable to resist the person who has caused him harm on his own." Li Jing asked for the teacher's opinion.

"Most people commit violence against people who are weaker than themselves, and they choose not to attack people who are stronger than themselves, and they are psychologically satisfied by committing violence against them. In this sense, he is treating these victims as a substitute for the one he really wants to take revenge on. He called the police for the victim, explaining that he was mimicking the experience of his youth: being beaten, but after the person who beat him came to his senses, he gave him a lot of love. ”

"And his stimulus may be that the person who violently hurt him suddenly left his life, and he is replicating his childhood, only this time he became the perpetrator." Li Jing took Mr. Lu's words and continued.

"That's right. You can find out the identity of the suspect from the location of his first crime. "Teacher Lu Jianyì," and about the type of victim, it should be very similar to the person who gave him the destruction of his childhood. The suspect's family looks happy and harmonious to outsiders, but it is full of desolation on the inside. In this family, men are often violent and have unknown bad habits, and after he violently hurt his children, in order to create an image of a loving father for outsiders, he took care of his children outside. ”

Li Jing thought for a moment: "No fingerprints were found at the scene, which should indicate that the suspect is well-educated and knows how to hide his identity." The frequent shift of the location of the crime indicates that his work is more mobile and he has direct contact with the victim, indicating that his work will overlap with the victim's family. The victim's job may be related to domestic service or homeschooling. ”

"There could also be family doctors, who are the only ones who have direct access to the injured person, because the suspect was violent when he was a child, he knows the injuries very well, and only he has direct access to the real situation of the victim's family. It must have been the suspect's scars from the violence of the children in the victim's family that reminded him of his youthful experience and led him to take revenge by mistakenly thinking of the victim as someone who had hurt him. Aggravation of the victim's injuries. He has become more and more unable to manage his feelings, and the suspect should be very irritable lately. ”

"Thank you today, Mr. Lu, I will do my best to make a profile with your help. We have to go back today, so I won't stay to eat with you, I'll come over to eat with you another day. ”