Early the next morning, the police found the suitcase used by the murderer to dump the body and an abandoned black electric car in a small alley about three kilometers away from Jiushun Lane.

It was confirmed that the electric car was reported lost the morning before the incident. The killer unknowingly stole the electric car, parked it on the road near the victim's house in advance, and used the electric car to transfer the body after the killing.

Unfortunately, the police did not find any valuable traces on the suitcase and the electric car, which the killer cleaned up very cleanly when he abandoned them.

When they first learned that the murderers of the "Lanting Villa Murder Case" and the "Guanghua Community Double Corpse Case" were Wei Chiliang, the people in the task force were all in high spirits and high morale, and they felt that they were not far from solving the case. However, no one expected that Yu Chiliang would start killing people again so soon. Not only that, but he also openly provoked the police, arrogant, and did not take the R City police into account at all.

What makes the police puzzled is that they have checked so many surveillance videos and sent so many police forces to search for Yu Chiliang's whereabouts in R City and its surrounding areas, but this person is like a ghost that can be hidden, and there is no trace at all. They even knew that many times, Wei Chiliang was quietly lurking around them, watching their every move, but they couldn't see him, let alone how to catch him.

Gu Song's entrapment plan has completely failed.

Wei Chiliang left a clear message at the scene of the dumping of the body, indicating that he had seen through the police's plan and would not be fooled at all. So then, apart from continuing to do a carpet search, what else can they use to find this ghost that has come and gone without a trace?

In order to allow the general public to actively cooperate with the police in the arrest work, they have increased the reward amount for the wanted warrant to 300,000 yuan. The hotline has not been idle, but not a single piece of valuable information has been confiscated.

At around 10 o'clock in the morning, Gu Song concentrated on analyzing the case on the clipboard in the office of the special case group. Zhong Xin sat at his desk not far away, smoking a cigarette and looking at him, not knowing what he was thinking.

Qi Ruonan didn't have any tasks for the time being, and he ran to the office to join in the fun when he was bored. She watched Gu Song scribbling on the clipboard for a while, and suddenly asked in wonder, "Senior brother, when is this coming, you don't go out to find someone, what are you doing here?" ”

"Looking for someone? Who are you looking for? Gu Song asked absentmindedly, but the pen in his hand never stopped.

"Of course, I went to find Yu Chiliang. Now that we have all the evidence, we are close to arresting him. ”

"Evidence ......" Gu Song muttered these two words, smiled bitterly and said, "We don't seem to have found any conclusive evidence." ”

"Senior brother, are you having a problem with your brain again?" Qi Ruonan was surprised, got up and walked to the clipboard, looked at him seriously and asked, "Have you forgotten that I found Wei Chiliang's DNA in Luo Yuxin's house?" ”

"Oh, that's it." Gu Song's attitude was a little disdainful, and he asked her while writing, "What about the other things?" Is there anything else that can prove Wei Chiliang's identity? ”

"And the note we found yesterday in the brick house! Didn't Wei Chiliang provoke you openly? You don't remember that, do you? The more Qi Ruonan spoke, the more panicked he became, and turned his head to look at Zhong Xin, who was smoking silently on the side, with a pleading gaze, "Brother Xin, my senior brother ...... him."

Zhong Xin snuffed out the cigarette butt in the ashtray, smiled at her softly and said, "Girl, don't worry, if something goes wrong with him, I won't bring him here." ”

At this time, Gu Song finally filled the clipboard in front of him. He turned around, looked at Qi Ruonan solemnly and asked, "May I ask if there is Wei Chiliang's handwriting on that note?" ”

"Nope."

"Did you find Wei Chiliang's fingerprints?"

"There is no ...... either"

"Then why do you say that the piece of paper must have been left by Wei Chiliang?"

"Huh?" Hearing this, Qi Ruonan was stunned for a moment. After pondering for a few seconds, she frowned and asked Gu Song, "Senior brother, what have you been talking about since just now?" I don't understand your thoughts. ”

"I have a bold speculation, do you want to hear it?"

"Listen, listen." Qi Ruonan nodded again and again, as excited as a child listening to a fairy tale.

Gu Song looked at Zhong Xin again, who made a gesture to him attentively and respectfully, and he continued: "Actually, when I came back from the scene of the first crime last night, I was a little puzzled in my heart. This morning, they found the suitcase and electric car used by the murderer to dump the body, and the feeling became more and more intense. ”

"What does it feel like?" Qi Ruonan asked eagerly, "Senior brother, don't sell it, hurry up." ”

Gu Song smiled at her, then pointed to the words on the clipboard with a marker, and said in an orderly manner: "Let's first take a look at the three cases that have occurred in the past month to see what problems exist in them."

"The first case is the first case, the 1.13 Lanting Villa Homicide Case. The victim of this case is Yu Chi Long, the biological father of the serial killer Yu Chi Liang. The cause of death of the victim was a knife in the heart, and the body was excessively injured by the murderer, showing the characteristics of revenge killing. The killer took the victim's belongings from the family after the killing. Police did not find any valuable fingerprints and footprints at the scene of the crime.

"The first suspicion in this case is: the victim has multiple coercive injuries on his body, and after analysis, it has nothing to do with money, so what information does the murderer want to obtain from the victim? Will this information help solve the crime? The second suspicion is: why would the murderer protect the victim's dog when he was such a ruthless person?

"Next is the second case, the 1.29 Guanghua Community Double Corpse Case. The female victim in this case was Luo Yuxin, the second wife of Yu Chilong. The cause of death of the victim was the same as that of Yu Chilong, both of whom were stabbed in the heart, and the body was also excessively injured by the murderer, showing the characteristics of revenge killing. The male victim was Luo Yuxin's younger brother, Luo Mingjun. The cause of death of the victim was a slit-throat and a single knife death. His death can be seen as an accident, but it is not completely uninstructive for us, and I will bring it up again later.

"The murderer also took the victim's belongings after the killing. The police did not find any valuable fingerprints and footprints at the scene of the crime, but the attentive Ruonan found Wei Chiliang's hair on the washstand in the bathroom, and it was this hair that helped the police identify the murderers in the two cases.

"There are even more doubts in this case.

"First: The two bodies at the scene of the crime show two completely different ways of death, which fully exposes the murderer's revenge target is Luo Yuxin, and combined with the case that occurred in Lanting Villa, the police will inevitably focus the investigation on the common enemy of Yu Chilong and Luo Yuxin, which increases the risk of the murderer exposing his identity. Such behavior contradicts the murderer's cautious and cautious way of doing the crime.

"Second: The murderer's way of killing Luo Yuxin is unreasonable. Suppose the murderer in the case is Wei Chiliang, as determined by the police, and his motive for killing Luo Yuxin is to avenge his dead mother. Combined with the analysis of the six serial murders committed by Wei Chiliang between 2012 and 2013, the targets he is looking for are Luo Yuxin's scapegoats. Therefore, when he is confronted with the real object of revenge, his killing methods will only become more cruel than before, otherwise it will not be enough to vent his anger.

"Third: the murderer also did not harm the victim's dog, which shows that the dog has an unusual meaning in the murderer's life. Does this help the police solve the case? Can we start the investigation from this point and make it a breakthrough?

"Finally, there is the third case, the 2.6 corpse mutilation case. The victim of this case is Jiang Lu, a white-collar worker at an advertising company. The cause of death of the victim was blood loss. In this case, the murderer recreates the scene of the corpse mutilation case. Although the modus operandi has changed somewhat, because the murderer followed a unique principle when selecting the victim, and because he left a provocative message at the scene of the dumping of the body, the police naturally believe that this case was also done by Wei Chiliang.

"The murderer took the victim's belongings from the victim's home after the murder and did not leave any valuable traces at the scene of the first crime and the scene of the dumping of the body. The suitcases and electric car found by the police were also cleaned up by the killers.

On the surface, there seems to be no suspicion in this case, but the murderer inadvertently exposed a problem. There is an ancient Chinese saying that if you do too much injustice, you will kill yourself, which means that if you do too many bad things, you will inevitably bring about your own destruction. The murderer pretended to be clever and self-righteous, thinking that he had done the case perfectly and left no flaws. But it was because he did it too cleanly that it exposed his inner concerns.

"Looking at these three cases, we will find a problem, except for the hair that Ruonan found in the second case, the murderer did not leave us any information to trace, including the note left in the third case, the text on it was also printed and did not reveal the murderer's handwriting. It can be seen that the murderer is an extremely cautious person.

"Then the question arises, what was the murderer's motive for committing the third case? The answer, obviously, is provocation. From the careful concealment of his identity in the first and second cases, to the blatant provocation in the third case, the turning point is that Ruonan discovers Wei Chiliang's DNA, exposing the identity of the murderer to the world.

"According to common sense, there is no need for a murderer who has exposed his identity and openly provoked the police to deliberately hide his fingerprints and footprints. Perhaps out of habit, he still brought gloves and shoe covers with him when committing the crime. What about the suitcases and electric cars found by the police? He deliberately cleaned the fingerprints on it, would it seem redundant to do so?

"Since he left a note to provoke the police, he boldly told people: I am the murderer, and you don't want to catch me. This provocative act once again contradicts his act of wiping off his fingerprints.

"In summary, the murderer seems to have been ambivalent in these cases. The police found Wei Chiliang's DNA as the demarcation point. In the first two cases, the killer carefully concealed his identity while clearly revealing his revenge target. In the third case, while the murderer publicly admitted his identity, he also hid evidence that could prove that he was Wei Chiliang. ”

"So, what are your conclusions?" Qi Ruonan was dizzy when he heard this, and felt that his IQ balance was seriously insufficient.

Zhong Xin silently lit a cigarette next to him, took a puff and replied: "What he means is that in the three recent cases in R City, the murderer may not really be Wei Chiliang, there may be other people who are using Wei Chiliang's identity to commit crimes." ”

Halfway through this sentence, Qiao Sheng just pushed the door and walked into the office. He was stunned for a moment, then suddenly widened his eyes and asked, "Zhong Xin, what did you just say?" ”