This visit and investigation basically ruled out the possibility of Zhou Qing's crime, because she had no motive to kill, and she did not have the time to commit the crime, and the person who arranged the room for Song Kexian at that time was Yang Yueqing. But Yang Yueqing is also innocent. Although she disappeared for 15 minutes during the time period of the crime, it was confirmed that during this time, she was in the guest room to deal with the problem, and the remaining 5 minutes were used to make a round trip, and the remaining 5 minutes were explained by herself. No matter how neat she is, she can't complete a series of operations such as killing, dismembering, and transferring corpse parts in 5 minutes. Could it be that Miao Yixin's reasoning about "glue stains" is wrong? The investigation of Yang Yueqing and Jin Hongwei seems to have reached a dead end. So the task force could only hope to find a new breakthrough from that person named Tian Yanlun.

Tian Qianlun, known as Tian Ye in the rivers and lakes. Male, divorced. 50 years old, first Chinese. Twenty years ago, he was sentenced to five years in prison for picking quarrels and provoking trouble. After he was released from prison, he made a living by running an Internet café and a game machine hall, during which time he made a lot of money, so he also bought a number of properties. At the beginning, Jin Hongwei and Ni Xianyan bought their current apartment from Tian Yanlun through Song Kexian. This background strings together all the key characters in the two murders.

June 21

"That dog's deception deceived Lao Tzu. It's really innocent. After learning of Song Kexian's death, Tian Yanlun did not hide his resentment. Even in front of the criminal police, he still went his own way and used foul language. The suspect kept touching the tattoo on his arm, as if he was deliberately showing his identity.

"Oh? How did the victim falsely accuse you? ”

"At the beginning, I had a house, even if I let this kid sell it cheaply."

"Tell me about it."

"I have a lot of houses under my name, and some of them are still houses that have been renovated, so there are a lot of fees to be paid when the transfer is made. When selling the house, everyone said that my offer was the price at hand, and I didn't care about all the taxes and fees, and let the buyer pay them himself, and the girl surnamed Ni was also there at that time. But when it came time to officially sign the contract, the grandson surnamed Song made a trick and added a sentence to the supplementary agreement: 'The taxes and fees incurred during the transfer shall be borne by the buyer, with the upper limit of 50,000 yuan'. His grandmother's, just because of this sentence, caused Lao Tzu to lose more than 300,000 yuan in vain. ”

"Then you can pay liquidated damages and suspend trading?" The two criminal policemen didn't believe in Tian Yanlun's temper and were willing to swallow this dumb loss.

"The brothers on the road have all inquired for me. At the beginning, this grandson saw that I was in a hurry to use the money, so he played such a play. The original deposit was only 100,000, but he later changed it to 250,000. I thought this kid was raising the quota for my own good. I found out afterwards that once I broke the contract, I had to pay at least double the deposit, which was 500,000. Wouldn't I lose even more? If his surname Song was to think about the buyer seriously, then Lao Tzu would have recognized it. But that grandson actually got involved with the girl surnamed Ni. Damn, take Lao Tzu's money to make women happy, I really fucking owe it. ”

Miao Yixin deliberately coughed dryly twice, as if to remind the other party to pay attention to the wording.

"And later? I heard that you went to his house to make trouble, and threatened to kill their family? ”

"Yes, that's what happened, because the more I thought about it, the angrier I became. Twenty years ago, I could have stabbed him. But I'm old now, and I can't do anything out of the ordinary. But when someone makes me uncomfortable, I'm going to add some blockage to his heart. ”

"Oh? How did you block him? ”

Hearing this, Tian Yanlun was dumbfounded for a while. And Miao Yixin's eyes revealed a hint of inviting you into the urn.

"You went to the housekeeping department of Ziyuan Villa on the night of the crime, didn't you?"

Tian Yanlun touched his chin, as if he was buying time for himself. It seems that the police have some evidence, and they have to be extra careful with every word they say next.

"Yes. But I didn't even see Song Kexian's face. His door was locked, and I knocked on the door for a long time, but no one answered. I don't believe you can go and watch the surveillance. ”

Whether Tian Yanlun really didn't know that the surveillance on the hotel floor was an ornament, or whether he was familiar with the inside story but deliberately said this, Miao Yixin didn't know.

"What time did you arrive outside his room, and how long did you stay?"

"I arrived at about 10 o'clock in the evening, stayed for less than a quarter of an hour and left."

"The lobby manager didn't tell you Song Kexian's room number, how did you find his room?"

"I went up to the second floor first and asked the waiter, and he said that there was no one on this floor that night. Then I went to the 3rd floor and asked the other waiter which room the guest had just checked in, and the other person told me directly. But I knocked on the door for a long time, but no one came out to answer, and I wondered if the waiter had made a mistake. So I knocked on the two rooms around 302, but there was still no response. ”

Song Kexian was arranged in a room where there were no people around, so it seemed that Tian Yanlun was not lying. But why did Tian Yanlun knock on the door repeatedly, but no one answered inside? Could it be that Song Kexian had already been killed at that time? However, the time of death provided by the medical examiner was clearly at 22:40.

"What time did you knock?" Miao Yixin threw out questions.

"A quarter past 10 pun."

Song Kexian should still be alive at that time, but why didn't he agree? Could it be that he was controlled by the prisoner, or was Tian Yanlun in front of him confusing the public?

"And after that?"

"Then I'll go back, can I open a room for the night?"

"If you see Song Kexian, what are you going to do with him?"

"This ......"

"I heard you were carrying a red plastic bag in your hand. What's inside? ”

"That'...... That's ......."

"Did you say it yourself, or do you want us to find out?" Yanagawa said, pulling out a search warrant.

"There was a jar with paint and chicken blood in it."

This confession corresponds to the red substance detected on the doorknob outside Room 302. At the same time, Miao Yixin suddenly remembered the large red dots on the other party's clothes when he met Song Kexian for the first time. So the officer continued:

"It's not the first time you've done something like this, have you?"

Tian Yanlun was shocked, and seemed to have been grabbed by his pigtails. The bad things he did before, he did it unknowingly, how could he be discovered by the police?

"Ten days ago, I smashed the glass of his car and threw half a can of that stuff into his car, and then half a can was left. I just wanted to give him some more 'colors' to see. ”

"How did you know he went to the hotel on the night of the 17th?"

"When I was fine, I was squatting downstairs at his house, and I knew his license plate number. I caught him driving that night. ”

Once the facts are confessed, all the details seem to be tightly connected. It turned out that the person who secretly followed Song Kexian these days was Tian Yanlun.

"If the victim opens the door for you, where are you going to splash it?"

"Just splash it on him, so that when he goes out, he will not see anyone." Tian Yanlun said, his eyes lit up, and he seemed to forget that he was describing a criminal matter.

"Is that half jar still there?"

"It's in the back room."

"Hand over the stuff in a moment. Let me ask you again, where were you from the night of the 10th to the early morning of the 11th of this month? This question was Tian Yanlun's alibi at the time of the investigation of Ni Xianyan's case.

"I drank with the brothers, and after we dispersed at about 9 o'clock, we went home and rested."

"Where's the wine?"

"Jinsong Hotel in the west of the city."

"You're the only one at home?"

"I'm the only one, happy as a fairy."

Tian Yanlun was married twice, once before he was imprisoned and once after he was released from prison. However, some people are not suitable for marriage at all. Both marriages are like a passing cloud, and there is no joy.

"Can someone prove it to you?"

"Nobody. Why give me a certificate? ”

"Because Song Kexian's wife was killed that night, and the location was also at the Ziyuan Hotel." Miao Yixin chose to take the initiative and released this heavy news.

Tian Yanlun had a grudge with Song Ni because of real estate, and he went to Ni's house to make trouble once afterwards. The day after Ni Xianyan was killed, Lao Tian smashed and splashed Song Kexian's car again. And just now, he also said that Song Kexian was innocent of death. All of his actions seemed to reveal that he was the most vicious criminal.

"You ...... To be clear, two different things. I...... I hate the Song family. But people ...... I didn't kill people. When he said this, Tian Yanlun lowered his head, but the light in the room was not dazzling.

"So think about it, is there anyone who can give you an alibi?"

"I ...... I didn't. But you can tune in to the video, I haven't been to the Ziyuan Hotel at all. ”

"The hotel's surveillance is broken." Miao Yixin threw out such a sentence again, which was equivalent to shooting Tian Yanlun's alibi.

“…… Then you can ask the hotel staff, if I go to the hotel, someone will always meet me, right? You can't wronged good people. ”

"We don't wronged a good person, and we don't let a bad person go. Go ahead and get out the half jar of paint mixed with chicken blood. Don't do anything that violates the law and discipline in the future. ”

After technical comparison, the half jar of red substance had the same chemical composition as the "paint" left in Song Kexian's car and the "red spots" extracted from the doorknob of room 302. Later, it was confirmed by the hotel staff that Tian Yanlun did appear on the second and third floors of the hotel at around 22:00 on the evening of the 17th and asked the waiter about Song Kexian's whereabouts.

Miao Yixin's head became a boiling pot, and the names of Tian Yanlun, Jin Hongfu, Yang Yueqing, and Wu Chunxiu kept tumbling inside. The detective slowly closed his eyes and combed through the main clues one by one.

In Ni Xianyan's case, there were two plastic stains on the top of the cat's eye in room 335 opposite 336, indicating that the prisoner had used adhesive tape to stick paper towels on the outside of the door to cover the cat's eye. In Song Kexian's case, the door opposite 302 was clean. Miao Yixin deduced from this that either Ruan Huaibing, who was staying in room 335, knew the prisoner, or the prisoner could have arranged the victim in a room with no guests in the vicinity during the second crime. The former targeted Ruan Huaibing's colleague Jin Hongwei and his neighbor Wu Chunxiu, while the latter threw the gathering point to Yang Yueqing. Through the oral statement of police officer Xiao Wang and Fan Juan's testimony, a person named Tian Yanlun also came into the police's sight. This person was designed by Song Kexian and lost three or four hundred thousand yuan in vain. As a result, Tian also stalked, retaliated, and intimidated the victim.

Jin Hongwei - Ni Xianyan's ex-husband. When Ni Xianyan was killed, he claimed to be in his room. When Song Kexian was killed, Jin Hongwei was having a supper with his colleague Ruan Huaibing. During his stay at the hotel, he only left the hotel on the night of the 13th and 14th. According to his own claim, he went to Song Kexian once, and once went to Lao Ni's house. He did not bring a bag with him when he went out on both occasions, so he was not in a position to transfer the body parts and the tools of the crime.

Yang Yueqing - Manager of the Housekeeping Department of Ziyuan Villa. Whether it was in the case of Ni Xianyan or Song Kexian, she did not have sufficient time to commit the crime, but her alibi was not sufficient. One of the details that caught the attention of the police was that Song Kexian was arranged to stay in a room surrounded by no one around, and this was precisely what Yang Yueqing did.

Tian Yanlun - the one with the most sufficient motive among all the suspects. Because of real estate matters, he had a bad relationship with Song and Ni, and once threatened to kill Song Kexian's family. In Ni Xianyan's case, he did not have an alibi, but the staff of the housekeeping department of Ziyuan Villa confirmed that he had not seen this bald hunk on the day of the crime, and there was no video data of him in the surveillance. To avoid being caught by the camera in the lobby on the first floor, you can climb to the third floor with your bare hands from the balcony of your guest room, bypassing the main entrance. There was a downpour on the day of the incident, and if Tian Yanlun had entered the house from the outside, he would have left marks on the floor, but no similar clues were found during the evidence collection at the scene. In the second case, Song Kexian was killed shortly after Tian Lilun left the hotel. Unless someone leaves the main entrance and then enters through the balcony window, the crime cannot be completed.

Wu Chunxiu - Song Kexian's concubine, her feelings for this man are probably love and hate. Xiaosan's ascension to the throne and revenge on the scumbag may be her criminal motive for killing Ni and Song. Two hours before Ni Xianyan's case, Wu Chunxiu also had a fierce verbal altercation with the victim. And when Song Kexian died, Wu Chunxiu claimed that he was alone at home. Coincidentally, Wu Chunxiu is also a neighbor of Director Ruan Huaibing.

After Ni Xianyan was killed, a room card in room 336 disappeared out of thin air, and it was not until Song Kexian's case occurred that this room card appeared in the victim's locked briefcase. On this room card, only the fingerprints of Ni Xianyan and Song Kexian were detected, but there were no fingerprints of the front desk staff. Miao Yixin deduced from this that the cardholder first cleared the fingerprints on the room card, and then artificially stained the fingerprints of the two victims, so it can be considered that the cardholder is the murderer.

If there is only one criminal, it may not be easy to subdue the victim in a 1v1 situation. Is it possible that multiple people committed the crime at the same time? When Song Kexian was killed, Yang Yueqing, Jin Hongwei, Tian Yanlun, and Wu Chunxiu, the four of them were in different places - Yang Yueqing went to the guest room, Jin Hongfu was in the hotel restaurant, and Tian Yanlun claimed to have left the hotel, and Wu Chunxiu claimed to be at home. It seems that only Wu Chunxiu and Tian Yanlun, whose whereabouts are uncertain, have the possibility of joining forces.

In the Ni Xianyan case, Yang Yueqing did not have sufficient time to commit the crime. In view of the fact that Jin Hongwei still recharged Ni Xianyan's phone bill after the divorce, he should not be the murderer of Ni Xianyan. If there is a conspiracy to kill people at the same time, the most likely combination is Wu Chunxiu and Tian Yanlun. However, Wu Chunxiu once provided an important clue to the police, that is, Song Kexian claimed that he was aware of being followed, and after police investigation, it was confirmed that the person who followed Song Kexian was Tian Yanlun. If Wu Chunxiu and Tian Yanlun are accomplices, why did the woman betray her accomplices?

At this moment, Miao Yixin seems to be in a huge labyrinth, and the exit that every clue points to is a dead end. He rushed through the labyrinth, hitting walls and stumbling everywhere.

Comparing the two bodies, there are some similarities in the modus operandi. Ni Xianyan and Song Kexian were both cut off from the bottom of their noses to their necks, and their hearts were also removed. The difference is that Ni Xianyan was cut off his left hand, while Song Kexian was cut off his right hand, which is one of them. Second, Ni Xianyan's body was broken into several pieces, while Song Kexian's was relatively intact. By comparing the cut-outs of the corpses, the medical examiner determined that the two bodies had been disassembled by the same small axe.

Dismemberment is a vendetta to vent anger. Because Ni Xianyan was killed on the night of a thunderstorm, the thunder could cover the movement of cutting the body. When Song Kexian was killed, because there was no cover, the murderer did not further decompose the body. But why did the killer take the heart, palate and neck, and one hand of the two victims? Why is it that a woman is missing her left hand while a man is right? Is this just a memory bias, or is there a secret hidden in it?

Moreover, at the scene of Ni Xianyan's crime, the earrings of the deceased disappeared. At the scene of Song Kexian's crime, the victim did not lose his property, but his mobile phone was missing. The police retrieved Song Kexian's recent text messages, WeChat, and QQ records through legal channels, and found no suspicious points. So why Song Kexian appeared at the hotel where his wife was killed is still a mystery to this day.

But the biggest headache for the police now is that they still haven't been able to find the tools of the crime and the body parts that were taken away. The entrance to the housekeeping department is located on the first floor of the hotel lobby and is all covered by surveillance. Considering the size of the axe and the body parts combined, the detectives initially targeted the guests and employees who left the hotel with backpacks or suitcases after the crime. Xiao Li and others from the task force went to other places to investigate the guests who checked out. However, these people were all in a different place when Song Kexian was killed, so the suspicion was cleared.

Miao Yixin also made such an inference: Could it be that the murderer simply packed the body parts and crime tools and threw them from the balcony of the room to the fence downstairs. The prisoner then left the building and picked up his belongings, thus bypassing the surveillance in the lobby. However, the rooms on this side of the balcony are all lake view rooms, and many guests like to stay on the balcony to blow the wind and look at the lake, especially on cool nights. A heavy object dropped from a high altitude will inevitably attract the attention of guests. From this point of view, this approach is too risky and must not be feasible unless it is absolutely necessary.

Because 336's room card appeared in Song Kexian's locked briefcase, the police also investigated his relatives and friends. But Song Kexian's hometown is in another place, and he is the only one in the clan who came to the city to work hard. As far as the information currently available, his concubine Wu Chunxiu is the one who is most likely to know the password of the briefcase. Although the woman denied this, the police did not seem to believe her claims.

The ashtray in front of Miao Yixin was filled with cigarette butts, but there were still sparks in his hand. I have been in this business for almost 20 years, and it is the first time I have encountered such a difficult case. The leaders of the Public Security Department attached great importance to both cases. At this time, the media has also shown unprecedented interest in serial killings. All sides need a truth, and the puzzle needs an answer. The detective is well aware that time is running out for him.