After Xu Lang and Ning Yanran listened to Qiu Yue's narration, the two of them glanced at each other, and they saw both disappointment and relief in each other's eyes.

Xu Lang looked at Qiu Yue with his head down, and from Qiu Yue's words just now, Xu Lang heard a lot of doubts.

First, she said that she poisoned Tan Boheng and Tan Shihao with rat poison, however, Ye Xuefei detected a chemical reaction of hydrogen cyanide from the bodies of Tan Boheng and Tan Shihao.

Second, the little girl Tan Jingjing was obviously strangled to death by the murderer, but Qiu Yue said that she hacked the little girl to death with a boning knife.

Third, when the police investigated the scene, they only found a murder weapon, that is, the boning knife inserted in Fan Ziyao's chest, but Qiu Yue claimed that she took the murder weapon away after finishing the case.

Fourth, according to Qiu Yue's own statement, she used the same murder weapon to kill Fan Ziyao, Liu Yun and Tan Jingjing, however, according to the police investigation, the murder weapon that killed Fan Ziyao and Liu Yun was definitely not the same murder weapon, the murder weapon that killed Fan Ziyao was found on her body, and the murder weapon that killed Liu Yun has not been found so far.

Fifth, Liu Yun's fatal wound was in the chest, not in the back, which is not the same as Qiu Yue's confession, and Liu Yun was abused by the murderer before her death, such as tearing her hair, trampling on her back and right palm, but Qiu Yue's confession did not, in addition, the most obvious point is that Liu Yun had sex with someone after her death, and Qiu Yue was a woman.

Sixth, Fan Ziyao is a woman, although she is an old lady in her sixties, and Qiu Yue is also a woman, although the murderer strangled Fan Ziyao's neck with his right arm from behind when he was defenseless, and stabbed Fan Ziyao to death with a knife in his left hand, people, when they are coerced, whether they are guarded or defenseless, they will subconsciously resist, however, Qiu Yue is a woman, can she control a woman like her?

Seventh, the urge to kill may arise because of love and hatred, but can the motive of killing Tan Shihao's family of five really stand?

Although Qiu Yue's confession was full of loopholes, Ning Yanran continued to ask: "You said that when you killed Professor Tan Boheng and Tan Shihao, you used rat poison, right?" ”

Qiu Yue nodded and said, "Yes." ”

"So where did you get the rat poison?" Ning Yanran asked.

Qiu Yue was stunned by Ning Yanran's question, obviously she didn't expect Ning Yanran to suddenly ask her this question, she thought for a while and said, "I bought it at the pesticide store." ”

"Oh, is it? So where did you buy it from? Ning Yanran stared at Qiu Yue's eyes and asked.

Qiu Yue didn't look at Ning Yanran, her eyes were a little flustered, she hurriedly lowered her head, and said, "I bought it at the pesticide store not far from Fenghua Community." ”

"Really? Are you sure? Ning Yanran raised her voice and asked.

Qiu Yue hesitated for a long time before nodding.

"Smack,"

Ning Yanran slapped the table and scolded: "Qiu Yue, this is the Public Security Bureau, not the vegetable market, do you treat us all as fools?" Don't you know that S City has banned the sale of rat poison in stores since a few years ago? ”

Qiu Yue raised her head abruptly and looked at Ning Yanran with an incredulous expression, and after staring at Ning Yanran for a few seconds, she lowered her head again and didn't say anything more.

"You said that you killed Fan Ziyao with a boning knife, so I want to ask, how did you control a woman who is an adult like you?" Ning Yanran continued to ask.

"She was watching TV and I came from the kitchen to the living room with a boning knife, took advantage of her unpreparedness, strangled her from behind, and stabbed her in the chest."

"Did she shout when you killed Fan Ziyao?"

"Probably not, right?!" Qiu Yue said with some uncertainty.

"Smack,"

Ning Yanran slapped the table again, and a pair of big eyes waited fiercely for Qiu Yue to ask, "You said that you killed the person, is there or not?" ”

"Nope." This time Qiu Yue blurted out.

"Really?"

"Not really."

Ning Yanran and Xu Lang narrowed their eyes at the same time, and then, Ning Yanran continued to ask, "Then when you killed Fan Ziyao, did you strangle Fan Ziyao's neck with your left hand, or with your right hand?" ”

"Left hand."

"And what is your right hand doing?"

"Stab her with a knife in your right hand." Qiu Yue raised her head and looked at Ning Yanran puzzled.

"Are you right-handed?" Ning Yanran asked.

"Yes." Qiu Yue nodded and said.

"You said that the little girl Tan Jingjing was hacked to death by you with a knife?" Ning Yanran asked again.

"Yes."

"How many knives were cut?"

Qiu Yue thought for a while, and said with some uncertainty: "Three knives? No, it's five knives. ”

"How many knives?"

"Five knives."

"Are you sure?"

"Sure."

Ning Yanran's brows furrowed again, then she looked at Qiu Yue and continued to ask, "Did you abuse Liu Yun when you killed her?" ”

"Sadism?" Qiu Yue looked at Ning Yanran a little blankly, then shook her head and said, "No." ”

"Are you sure?"

"Sure."

"You did it all by killing Professor Tan Boheng's family?"

"Yes."

"Can you take responsibility for what you're saying now?"

"I can take responsibility for what I'm saying now."

Ning Yanran looked at this young girl, and didn't know what to say for a while.

At this moment, Xu Lang, who had been silent, suddenly spoke: "Qiu Yue." ”

Hearing someone call her name, Qiu Yue subconsciously turned her head to look at Xu Lang, and heard Xu Lang say: "Do you know that murder is a felony and will be sentenced to death?" ”

Qiu Yue nodded and said, "I know." ”

"Then do you know that you are also legally responsible for perjury, deliberately concealing the truth, and interfering with the police handling cases?" Xu Lang said.

Qiu Yue looked at Xu Lang's eyes, her eyes were a little evasive, she didn't dare to look at Xu Lang, lowered her head, nodded, and said in a low voice: "I know." ”

"Smack."

Xu Lang slammed the table and asked sharply, "Since you know, why are you lying?" ”

Zhu Xumei, who has been in charge of recording, turned her head to look at Xu Lang and Ning Yanran helplessly after Xu Lang finished patting the table, she found that whether it was Ning Yanran, Xu Lang, or Li Lei, when interrogating criminal suspects, they all like to slap the table.

Hearing Xu Lang's questioning, Qiu Yue raised her head suddenly, looked into Xu Lang's eyes, and shouted sharply: "I'm not lying, what I said is true, I killed the person." ”

Faced with Qiu Yue's sudden hoarseness, Xu Lang just frowned, he looked at Qiu Yue expressionlessly, and said lightly: "You said that you killed people, then you should know that Tan Boheng and Tan Shihao died of hydrogen cyanide poisoning, not rat poison." ”

"The little girl Tan Jingjing was strangled to death by a pillow towel, not hacked to death by a knife."

"Liu Yun was indeed stabbed to death, but it was stabbed to death from in front of him, not behind his back, do you know that Liu Yun was abused and trampled on by the murderer before he died? After killing Liu Yun, the murderer once had sex with her, and you said that you killed the person, so tell me, how did you have sex with Liu Yun? ”

Hearing Xu Lang's repeated questioning, Qiu Yue's cheeks, which originally seemed relatively calm, were pale at the moment, her eyes were flustered, her teeth were biting her lips tightly, she looked at Xu Lang in a daze, and did not speak.

Seeing that Qiu Yue didn't speak, Xu Lang slapped the table again and scolded loudly: "Why did you come to the Public Security Bureau to surrender?" Why do you want to admit that Tan Boheng's family was killed by you? What are you doing this for? Is it to cover for whom? ”

In the face of Xu Lang's questioning, Qiu Yue didn't seem to hear it, she was distracted, lowered her head, her eyes were unfocused, and she seemed to be scared stupid.

Xu Lang and Ning Yanran glanced at each other and shook their heads, Xu Lang didn't ask Qiu Yue anything, just sat behind the interrogation table, looked at her coldly, and didn't ask anything more.

Time passed minute by minute, Qiu Yue still lowered her head, refusing to speak, she had long hair, because of her low head, her hair covered her cheeks, making it difficult to see her expression, Xu Lang After waiting for a while, he turned his head to Ning Yanran's ear and whispered: "Let someone from the technical department collect her fingerprints and palm prints, as well as DNA samples." ”

Ning Yanran knew why Xu Lang did this, and found the murder weapon left by the murderer on Fan Ziyao's body, and there was a mutilated bloody handprint on the murder weapon, if the person was really killed by Qiu Yue, then the bloody handprint on the murder weapon was hers, if the comparison turned out to be not hers, then, why did she come to the Public Security Bureau to surrender.

After Ning Yanran thought of this, she said a few words to Zhu Xumei, and then, Zhu Xumei walked out of the No. 1 interrogation room.

After a while, Zhu Xumei and Ye Xuefei walked into the No. 1 interrogation room, Ye Xuefei took the toolbox to collect the fingerprints and palm prints of Qiu Yue's ten fingers, and also drew a tube of blood, and then, Ye Xuefei left with these things, during this period, Qiu Yue was very cooperative, she did not struggle, did not shout, let Ye Xuefei move, she seemed to be a living corpse.

Xu Lang and the three of them waited in the interrogation room for another half hour.

In this half an hour, Ning Yanran asked Qiu Yue many times why she turned herself in, but she was silent as if she hadn't heard, and finally, Xu Lang and Ning Yanran briefly discussed and decided not to interrogate Qiu Yue for the time being, after all, she refused to say anything, and there was no substantive effect in such a consumption, so Xu Lang, Ning Yanran and Zhu Xumei walked out of the No. 1 interrogation room.

When the door of the No. 1 interrogation room was closed, Xu Lang and Ning Yanran came to the one-way glass outside the interrogation room and stood still, and the two of them looked at Qiu Yue, who was sitting in the interrogation room with their hands handcuffed, they wanted to see something.

However, when Xu Lang and the others were disappointed, even though Xu Lang and the others had already left the interrogation room, Qiu Yue still lowered his head and sat there motionless, which made both of them frown.

"Why did Qiu Yue come to the Public Security Bureau to surrender?" Ning Yanran looked at it for a while and asked.

Xu Lang shook his head, he didn't know why Qiu Yue chose to do this, but Xu Lang could be sure of one thing, the murder of Tan Boheng's family must have some kind of relationship with this woman, as for what the relationship is, whether she is one of the murderers, or what other relationship, Xu Lang does not need to be clear for the time being, it is estimated that if you want to know this, you need to wait until the results of the investigation of Qiu Yue's family background and interpersonal relationships come out.

Seeing that Xu Lang didn't speak, Ning Yanran said to herself: "Saying that she is a murderer, but her confession is full of loopholes, and she is obviously lying, but it doesn't make sense to say that she has nothing to do with this case, at least, she knows a lot of details of what happened at the scene of the murder, such as Tan Boheng and Tan Shihao were poisoned to death, Liu Yun and Fan Ziyao were stabbed to death with sharp weapons, we haven't disclosed these details to the public, how did she know?" ”

Hearing Ning Yanran ask, Xu Lang also fell into deep thought, in fact, when Qiu Yue told herself, Xu Lang was thinking about this question, Xu Lang's first thought was that Qiu Yue knew what happened to Tan Boheng's family on the morning of November 3rd, and no one knew so many details except the police and the murderer, but how did Qiu Yue know?

There are only two possibilities.

First, when the murderer committed the crime at Tan Boheng's house, Qiu Yue was at the scene of the crime, so she knew how the murderer killed Tan Boheng's family.

Second, Qiu Yue and the murderer know each other, and they are very familiar, Qiu Yue has some kind of relationship with the murderer, Qiu Yue has not been to the scene of the crime, but she learned about the murderer's crime process from the murderer.

Xu Lang told Ning Yanran what he was thinking.

After listening to this, Ning Yanran thought about it, shook her head and said, "I don't think the first possibility is very likely. ”

"Oh, why?" Xu Lang asked with a raised eyebrow.

"The 113 case occurred at about nine o'clock in the morning on the third day, and the reporter Mao Dehui reported the case at about ten o'clock, the police arrived at the scene twenty minutes later, Mao Dehui returned home at nine o'clock in the morning, if Qiu Yue was at the scene, then, someone should see it, after all, she is not a resident of Fenghua Community, a person who is not a resident of the community appeared in the community, and there was a murder on the same day, Li Lei When they investigated and visited, it was impossible not to know this situation."

"Maybe no one sees her." Xu Lang said.

Ning Yanran still shook her head, thought for a while and said: "Impossible, Hu Anyun's investigation and visit to the residents of Fenghua Community, I looked carefully, and at about nine o'clock to eleven o'clock on the third day, there were people in and out of the community, and I didn't see strangers appear in the community. ”

Xu Lang nodded, knowing the truth of what Ning Yanran said.

Ning Yanran continued: "Also, if Qiu Yue was really at the scene of the crime, then she should have seen with her own eyes how the murderer committed the crime, if this is the case, she should know that the murderer killed Tan Boheng and Tan Shihao with hydrogen cyanide instead of rat poison, and she should know that the little girl Tan Jingjing was strangled to death, not hacked to death, and Liu Yun was abused before her death, she should be very clear about these details, but the problem is that when she confessed just now, she didn't mention these, This suggests that the first possibility is unlikely. ”

Xu Lang nodded again, he looked at Ning Yanran appreciatively, Xu Lang found that since Ning Yanran came to the second criminal investigation team for more than a year, Ning Yanran has made great progress, has begun to gradually adapt to this environment, and has also learned to think about the details and doubts in the case alone, which is a good thing.

"Indeed, judging from the current situation, Qiu Yue was not at the scene of the crime when the 113 case occurred, so she knows so much, it should be the second possibility."

"Qiu Yue knows the murderer, and the two of them are very familiar." Ning Yanran said.

Xu Lang nodded, and then asked, "Then what kind of person do you say the murderer will be, and why is Qiu Yue willing to convict him?" ”

Ning Yanran thought for a while and said: "According to the investigation of the scene, the murderer should be a man, aged between eighteen and thirty-eight years old, the murderer has a certain knowledge of chemistry, it is likely that he is engaged in the mining industry or electroplating industry, or he is engaged in laboratory research, the murderer knows Tan Boheng's family, Tan Boheng They have no defense against the murderer, from the location of the death of the five deceased and what they were doing before their death, this can be determined, As for why Qiu Yue wanted to convict the murderer, there are only two possibilities. ”

"Which two?" Xu Lang asked.

"First, the murderer is Qiu Yue's relatives."

Xu Lang nodded.

"Second, the murderer is Qiu Yue's boyfriend or a friend of the opposite sex such as her husband."

"That's right, that's it. The range of murderers is much smaller. Xu Lang said.

Qiu Yue's appearance brought a great surprise to Xu Lang and them, and also brought a new direction of detection, although the fact that Qiu Yue was not a murderer has now been determined, but whether she participated in this murder case is still unknown, but she must be an insider, as for whether she knew in advance or after the fact, further investigation is needed, however, Xu Lang They also found an invisible clue from it.

The murderer and Tan Boheng's family are very familiar, this point has been determined when investigating the scene, and at the beginning, the direction of the police investigation revolved around the social relations and kinship of Tan Boheng's family, and now, there is a little more, that is, the murderer and Qiu Yue also know each other, so the scope of the investigation has been further narrowed down a lot, as long as you find someone who knows both Tan Boheng's family and Qiu Yue, then the murderer will soon pay the water.

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