Gu Song listened carefully to Xia Shi's narration, thought for a moment and said, "Is it possible that later on the day of the crime, Deng Jun came to He Yao's house again to repair the toilet." During the contact between the two people, He Yao said something humiliating to Deng Jun, which made Deng Jun feel extremely angry, and impulsively stabbed He Yao to death. However, killing and destroying corpses was not enough for him to relieve his hatred, so he simply took out a few nails from the toolbox and sealed He Yao's mouth, which meant to silence the deceased forever. ”

"I've thought about that possibility, too." Xia Shi said thoughtfully, "In fact, after the '9.16 case', we conducted a more detailed investigation of Deng Jun's life background. Although his standard of living is average and his social status is not high, he occasionally gets into disputes with clients at work, and is even abused. But in general, Deng Jun is an optimistic and cheerful person with a positive attitude, with a stable family structure and getting along well with the people around him. From the point of view of criminal psychology, he should not have committed such a brutal crime because of a few nasty words. ”

"Maybe there is any hidden psychological crux that I don't know, the human heart is elusive......" Gu Song muttered as if talking to himself, and then asked Xia Shi, "By the way, has He Yao's toilet been repaired?" ”

"This ......" Xia Shi was stunned for a moment, frowned slightly and said, "I really haven't let people check it." ”

Hearing this, Gu Song immediately walked towards the bathroom on the right hand side of the living room. Because it is an old house built in the last century, the area of the bathroom is very cramped, and the sink and toilet alone occupy three-quarters of the space, so that the shower head has to be installed above the toilet, which is very inconvenient to use.

Gu Song was afraid of destroying the traces and physical evidence that might remain in the bathroom, so he stood at the door and looked inside, and said to Xia Shi: "Call someone from the technical team to come to the site to revisit the scene, focus on checking the toilet and water tank, maybe there will be an unexpected gain." ”

"How did I overlook such an important detail?" Xia Shi sighed, and his face couldn't help but show an expression of self-blame and regret. "If only you hadn't left the criminal police team, compared to you, my ability may really not be as outstanding as I thought......

"What's the matter, why are you saying these disheartening words?" Gu Song squeezed Xia Shi's shoulder fiercely, pretending to be relaxed and teasing, "How do I think you are different from before." Where is the summer time who doesn't admit defeat, doesn't bow his head, and says shamelessly, 'There is no case in this world that Young Master Ben can't handle'? It's only been a few months, how come your sharpness is about to be worn out? ”

"It's not that I want to be like this, it's that reality forces me to recognize myself. Do you know, the pressure I am under now, the burden on my shoulders is all carried for you, and the position of the captain of the criminal police should have been yours. ”

"Don't, don't." Gu Song was so frightened that he waved his hand again and again, "Don't say such things, when will I be qualified to be the captain?" Don't you know my personality, I'm not the leader at all. ”

"But ......"

"That's it!" Gu Song had never seen Xia Shi so modest, and suddenly he was a little impatient. "I know that when you took office as a new official, some colleagues around you were not convinced, saying that you relied on the father of the head of the authority to ascend to the position. You're so anxious to prove your abilities that the pressure is so great that even your personality is distorted. Although there is nothing wrong with the way you look now, don't you feel that you have worried too much and have lost your original acumen and courage? ”

"Yes, Ruonan said the same thing about my ......," Xia Shi replied with a wry smile, and then fell into a deep thought.

When he raised his head to face Gu Song again, Xia Shi's eyes showed a long-lost look. Gu Song saw the tenacious determination and shameless self-confidence from it. He smiled slightly, feeling extremely comfortable. Yes, he was sure that the partner he had known was back.

Leaving He Yao's house, the two met a young man in the corridor who was plainly dressed and had a sturdy figure. The other party had just come back from outside, carrying a packing bag in his hand, and a spicy and fragrant smell wafted through the narrow stairwell, instantly arousing Gu Song's appetite. He sniffed in enjoyment, turned his head and complained to Xia Shi, "I've been tossing with you for most of the day, and I haven't even eaten lunch yet." ”

Xia Shi glanced at Gu Song, didn't answer his words, and then fell on the young man who walked up the stairs head-on. The young man stopped, looked at Xia Shi with a surprised face, and was about to ask something, but he didn't expect Xia Shi to greet him first, "Mr. Dong, got off work so early?" ”

"yes." The young man clenched the bag in his hand and replied a little uncomfortably, "I have a cold, I am not feeling well, and I asked the boss for leave." After speaking, he looked at Gu Song suspiciously and asked, "Officer Xia, what are you...... For He Yao's case? Did the killer get caught? ”

"Who are you?" Gu Song walked down a few steps and came to the young man and asked.

"Well, I'm a neighbor who lives across the street from He Yao's house, and my name is Dong Wei."

"Hello, Mr. Dong." Gu Song showed a friendly smile, and then asked, "Were you at home on the night He Yao was killed?" ”

"Ah, haven't you asked me twice before?"

"Oh, that's right." Xia Shi was afraid that Dong Wei would misunderstand something, so he hurriedly explained, "Mr. Dong, this is a criminal investigation expert specially invited by the Municipal Bureau, and he wants to re-learn from you about the situation on the night of the crime. ”

"No, no problem......" Dong Wei barely squeezed out a smile, but his eyes involuntarily glanced at the packing bag in his hand, as if he was worried that the food in the lunch box would not taste good after a while.

Gu Song saw the other party's thoughts, smiled and said, "Don't worry, I won't delay you for a few minutes." ”

"Well, if you want to know anything, you can ask, but my words may not help you much."

"How is your relationship with He Yao? How long have you known each other? ”

"It's not very familiar, but I usually say hello when I meet it in the hallway. I've lived here for over two years and she's pretty much ...... I just moved here half a year ago. ”

"Have you ever met He Yao's boyfriend?" Gu Song said as he took out a photo from the file and handed it to Dong Wei.

Dong Wei took the photo and glanced at it, and replied without thinking: "I have seen this man, he seems to be surnamed Ma." ”

"Does he often come to He Yao's house?"

"I don't know about this, I've seen it a few times once in a while."

"On the night of the crime, did this man come to look for He Yao?"

"Maybe, but I'm not sure."

"Not sure what you mean?"

"That night......" Dong Wei recalled, "I was watching TV in the living room when I heard someone knocking on the door opposite, and the voice was a man, but I didn't see who it was." ”

"Do you remember what time it was?"

"It should be past nine o'clock, and I just finished watching my favorite show on TV."

"Did you hear any strange noises after that, such as arguing, scolding, etc.?"

"I didn't pay attention, I went to take a shower after watching TV, and went to bed early."

"Did you notice anything unusual that night besides the knock on the door?"

"I've told you twice before." Dong Wei was a little impatient when asked, and said that these policemen were too idle to do anything, why did they come over every once in a while to inquire, but considering Gu Song's special status, he still replied honestly, "When I came home from work that night, it was about 7 o'clock, and I saw a man in his thirties sitting at the door of He Yao's house smoking boredly. Looking at his dress, it is estimated that he is a repairman of a housekeeping company. I don't like to talk to people, so I didn't talk to him, I just opened the door and entered the house, and I don't know what happened after that. ”

Gu Song took Deng Jun's photo to Dong Wei and asked, "Did you see this man that day?" ”

"That's right, it's him." Dong Wei nodded in conviction, and the expression of impatience was already clearly on his face. Gu Song knew that the other party was in a hurry to go home for dinner, so he smiled apologetically and said, "I'm sorry for delaying your time." One last question, between 10 and 12 p.m. last night, where were you and what were you doing? ”

"It's so late, of course I'm sleeping at home, why do you ask me this?"

"It's nothing, it's just a routine inquiry, don't think about it." Gu Song put away the photos, turned sideways and stepped out of the stairs and said to Dong Wei, "You can go home." We'll trouble you again if you need it later. ”

"Okay then." Dong Wei reluctantly replied. As soon as he raised his feet and walked up a few steps, Gu Song suddenly stopped him again, "That's right, Mr. Dong." ”

"What else is going on with you?" Dong Wei turned his head and looked at Gu Song inexplicably.

"No, you're mistaken." Gu Song waved his hand, awkwardly pointed to the packing bag in Dong Wei's hand and asked, "Where did you order your takeout?" It smells good. ”

Back at home, Dong Wei slammed the door shut, and the expression on his face gradually became gloomy. Despite his hunger, he had no appetite at all. The excessive nervousness and anxiety made his stomach very upset, and he even felt like vomiting. He hurried into the bathroom, bent down and retched a few times on the dirty toilet, and then sat down limply on the floor.

The repeated disturbances by the police really made him unbearable, and if he continued like this, his secret would definitely be known by more people. He held his head in pain, buried his face between his knees, and blood-drenched images flashed through his mind at a rapid pace, clear and cruel. He seemed to smell the fishy sweetness, heard the sound of bones being chopped off, and even saw the process of the corpse decomposing and deteriorating in front of him......

If he continues like this, he will definitely go crazy. Although I am reluctant to give up the hard-won stable life in front of me, perhaps, it is time to leave this bustling city and find the next place to wander again......

Thinking of this, Dong Wei slammed up from the ground, the short-term lack of oxygen in his brain made his eyes black, but he didn't care about this, and stumbled towards the kitchen. The moment he opened the refrigerator door, his restless emotions were suddenly soothed by something inside, and a grim smile appeared on the corner of his mouth.

No matter what happens, as soon as he sees it, Dong Wei's heart will have an irreplaceable sense of happiness and satisfaction. After so many years of wandering, he has depended on it for his life, and no one and nothing can take its place.

"I'm sorry, I know you love the city, but it's not safe for us anymore." Dong Wei said as he reached for the black plastic bag in the refrigerator, stroking its outline through the thin plastic sheet. "No one can take you away from me, and if that troublesome policeman dares to disturb us again, I will definitely be as ...... as I was back then"