However, when Deng Xiaolong was in the United States, he was at the same University of Chicago as Geroge, and after coming to Haidu, he went to Haidu University, where Zhuang Yiqun is located, to study for a doctorate. Wei Chihong did not believe that there would be such a coincidence.

Wei Chihong had a hunch that this would be a very difficult case, and it was inextricably linked to the case seven years ago, especially involving Qiao Yan's father. Zhuang Yiqun's death is just the beginning. He felt a tremendous pressure like a boulder on his chest, so heavy that he couldn't breathe. His face was full of contemplation, his eyes were full of trouble, and the corners of his mouth were patient—a patience that bordered on pain.

Qiao Yan was lying on the bed, her eyes wide open, the rose color paintings on the wardrobe bloomed silently in the dark night, Qiao Yan couldn't see clearly, but there seemed to be light and shadow in front of her, and she returned to the rose garden of Hai Wenqing's former residence in a trance, the gorgeous rose flower wall, and the mysterious man, were all hidden in a light smoke and mist, which made her unable to grasp it, made her anxious and distressed, and made her unable to grasp it and see clearly.

I don't know how long it took, but tiredness finally conquered her, and with her eyelids closed, she fell asleep, tears still shining on her eyelashes.

The next morning, Qiao Yan saw that Yu Chihong's eyes were tired, and there were faint black circles around his eyes. Could it be that he also has insomnia all night?

"Did you sleep well last night?" Wei Chihong asked with concern.

"It's fine." Qiao Yan reluctantly replied.

In the morning, time was pressing, and the two couldn't communicate much, so they went to the public security bureau together after breakfast.

Sun Hui's body was found in the morning in the abandoned old villa where Chen Qi was raped, and his side was littered with skull masks and syringes, ostensibly by injecting some kind of drug to commit suicide. A printed suicide note was found in the inside pocket of his clothes, which stated that he had committed the five rapes on Zhulang Island and the assault on Mo Yuqing. After assassinating Mo Yuqing, he regretted the big mistake he made on impulse, and he also knew that killing would pay for his life, so he decided to apologize with death before being caught. The date and time were still left on the suicide note, which was in the early morning of the second day after Mo Yuqing's attack.

"If it's suicide, it's too cheap for him!" Lu Bin gritted his teeth and was angry.

"I'm afraid it's not suicide." Qiao Yan's intuition told her that it was a homicide disguised as suicide.

Li Shuhua's autopsy results proved that Qiao Yan's intuition was very accurate. "Sun Hui's time of death coincided with the time stated in the suicide note, and the cause of death was a drug overdose. Sun Hui has a history of drug abuse, and only his own fingerprints are on the syringe. However, there are traces of rope on his wrists and ankles, and it is possible that he was first tied hand and foot elsewhere and then injected with drugs. After he died, he threw it into the old abandoned villa. ”

"The murderer knew Sun Hui very well and knew that he was taking drugs, so he used the syringe used by Sun Hui to kill him." Wei Chihong deduced, "The murderer must be someone who has a close relationship with Sun Hui, Sun Hui doesn't like to talk, has an introverted personality, and his circle of friends must not be wide, so it shouldn't be difficult to investigate the people who have more contact with him." ”

"The murderer is the criminal in the other two cases. He killed Sun Hui in order to kill his mouth, so as not to expose himself. Qiao Yan said, "He didn't know that we had already found out that it was an accomplice who committed the crime, so he put all the blame on Sun Hui's head and wanted the matter to end there." He threw Sun Hui into the abandoned old villa, which also proved that he was Sun Hui's accomplice. ”

Cao Chongshan also reported the results of the identification of the handwriting of the suicide note: the suicide note was printed by an inkjet printer. He conducted a type analysis of 35 different grades of inkjet printer inks from different manufacturers on the market. In the experiment, N,N-dimethylformamide was used as the extraction agent to extract the handwriting of 35 kinds of inks, and the 35 kinds of samples were divided into three categories according to the extraction situation. On this basis, infrared spectroscopy analysis was carried out on 23 extracts of inkjet printing handwriting with good extraction effect.

According to the characteristics of the infrared spectrum of the sample, it can be divided into two categories, and the infrared spectrum of each sample in each category has its own characteristics, which can achieve the purpose of mutual identification. It was finally determined that the Epson EPSON high-end color commercial inkjet printer that was just launched in the middle of last month was used to print the suicide note.

Sun Hui's residence did not have a printer, and the printer type of the Black Cat Mansion did not match, indicating that the printing of the suicide note had another source. After investigation, the investigators of the task force obtained a list of buyers of the latest Epson Epson high-end color commercial inkjet printer since its launch, using the elimination method, the final target buyer was shocking, it turned out to be Shi Nara, a well-known composer and pianist in the United States at home and abroad! The people at the Black Cat Mansion confirmed that in addition to Chinese New Year's Eve, Shi Nara had also visited the Black Cat Mansion before, met Sun Hui, and the two had also talked together.

"How is this possible!" Qiao Yan jumped in shock, "If it's Shi Naliang, it's too outrageous, he and Luo Yi are a pair of lovers, can they use such despicable means?" ”

"Don't jump to conclusions, there are no absolutes in anything, have you forgotten, Gary said that on Chinese New Year's Eve, Shi Nara drank the 'Nine Heavens of Ice and Fire' that he personally concocted. Of course, Shi Nara's purchase of the printer does not mean that the suicide note was forged by him, and it is also possible that someone else used his printer to print the suicide note. Wei Chihong analyzed objectively, "It seems that it is necessary to talk to Luo Yi again, she and Shi Nara have been together for so long, they should know him very well." ”

Luo Yi was still hospitalized, and Qiao Yan and Lu Bin went to the ward together.

Luo Yi was lying on the hospital bed groggily, her eyes were sunken, and her eyes were particularly black, in strong contrast, her face was as white as the sheets. Qiao Yan saw the disheartenedness on her face.

"Did you catch the criminal?" Luo Yi asked wryly.

Qiao Yan saw her so haggard, and remembered her birdish and radiant appearance when she was with Shi Nara in the past, and her heart was very sad. "We're a little eyebrow-raised, we're here today to verify some things with you, and I hope you can answer our questions truthfully."

"Just ask." Luo Yi said briefly.

Qiao Yan paused before asking, "Shi Naliang...... Has he ever come to see you? ”

Luo Yi closed his eyes, tears rolling down. "Actually, we ...... Already broke up...... Before I had an accident. ”

"Why?" Qiao Yan asked in surprise, and Lu Bin also looked at Luo Yi in surprise. After all, the lovers are so famous, their love story is talked about, and not long ago, the news that they both performed on stage was published in the media.

"He empathized and fell in love with someone else." Luo Yi said even more shocking words, "He got along with a girl from the fan club and insisted on breaking up with me." ”

"What's that girl's name?" Qiao Yan asked.

Luo Yi gritted his teeth before squeezing out the words from between his teeth. "The surname is Qiao, the single name is a word, and then the Ran."

Qiao Yan was completely stunned, listening to Luo Yi's tone, she shouldn't have known that Qiao Ran was her sister.

"Did Shi Nara tell you personally?" Lu Bin interjected and asked.

"No, I found the evidence myself." Luo Yi was teary-eyed, "I looked at the photos of the music fan club several times, and I could see Shi Nara and Qiao Ran together. In particular, there is one in which Shi Nara hugs Qiao Ran, very intimately. He would never put his arms around me like that in public. Also, he composed a song called 'The Lover Under the Roses', I don't know if you have heard it. ”

Qiao Yan said yes, I once heard them play in the concert of Shi Nara's works.

"Shi Nara said that the piece was written especially for me. In fact, I've never seen a rose, and when I asked him why he did that, he told me he imagined me under the roses. Luo Yi sobbed, "Later, I found out that the original piece was actually made for Qiao Ran." I asked Qiao Ran what flowers she liked, and she told me personally that she liked roses very much. It's ridiculously silly to pity me for keeping it in the dark. ”

Qiao Yan was a little skeptical before, but after hearing Luo Yi's statement about that tune, she understood that she had misunderstood. When the concert was held, Qiao Ran had no contact with Shi Nara at all, and that piece could not have been composed for her.

In addition, the photo of Shi Nara hugging Qiao Ran mentioned by Luo Yi should be the group photo that Qiao Ran specially showed her. She was also surprised when she saw the photo at the time, but Qiao Ran explained that Shi Nara had drunk two cocktails at that time, and she was a little drunk, so she would hug her. Qiao Ran also expressed her attitude, saying that she didn't think anything wrong about Shi Naliang, but just worshiped him like a god. She believes that her sister is not that kind of person, and she will not intervene in other people's feelings as a junior. But she can't defend Qiao Ran, after all, her identity is special, and she will be suspected of protecting her shortcomings.

Lu Bin spoke for Qiao Ran instead of Qiao Yan: "You may have misunderstood, I know Qiao Ran, I think she is a very innocent girl and will not rob other people's boyfriends." ”

Luo Yi snorted coldly. "You have been deceived by her innocent appearance, Shi Nara himself has admitted it. I repeatedly asked if it was because of Qiao Ran that he insisted on breaking up with me, and finally he acquiesced. ”

Qiao Yan and Lu Bin glanced at each other, and their eyes were full of doubts. Then, Qiao Yan changed the topic. "Is Shi Nara violent? I mean......" she slurred, "would he be sexually abusive to you?" If I offend you by asking this, I beg your pardon. ”

Luo Yi was stunned. "What do you mean?"

Qiao Yan simply said directly: "We have traced some clues about the rapist, Shi Nara is suspicious, but we feel that the possibility seems very small, so we need to ask you to confirm." ”