"Have you ever thought about why the murderer left this?" Faced with the doubts of Zhou Wu and Luo Binwang, Zhang Zong was very calm and pointed to the image of the salvation talisman on the case sect and asked.

"Isn't this obvious? The murderer may believe in evil magic, and naturally he is afraid that the person he killed will turn into an evil ghost to seek his life, so he used the talisman to save the dead, and all he wants is a peace of mind." Zhou Wu replied without hesitation.

"Your last sentence is right. The murderer is asking for peace of mind, but as a vicious murderer, why is he uneasy?" Zhang Zong asked calmly again.

"This... what is this problem? How do I know what the murderer thought?" Zhou Wu was also asked by Zhang Zong's question, and he was a little exhausted for a while.

"If we want to solve the case, we must treat ourselves as the murderer and consider the problem from his perspective!" Zhang Zong suddenly raised his voice at this time, "As far as I know, there are many ways to prevent ghosts from seeking life, such as sealing the ghost of the deceased in his body, or breaking it up directly, or letting the ghost of the deceased fall into hell, and never being reborn, etc. But why did he use a relatively kind method of reliance, which is relatively kind?"

As soon as Zhang Zong said something, Luo Binwang couldn't help but be surprised. Zhou Wu was naturally not a fool, and he also showed a contemplative look at this time.

"So I said that the murderer actually doesn't want to kill people. To be precise, killing people is not his purpose, and taking away people's hearts is the real purpose. Moreover, the murderer only kills nine people every year, first nine men and nine women, which has a sacrificial taste, so the murderer's hearts are indeed very likely to be used for some kind of evil technique." Zhang Zong finally told his conclusion again.

"But even if you know that the murderer's purpose is human heart rather than murder, what is the use of us to solve the case?" Zhou Wu hesitated for a moment and asked again, but this time his attitude changed drastically, and his tone also had a bit of advice.

"It's very useful. Now we don't know much about the murderer, so we can only piece together the murderer's information little by little. It's like playing a puzzle..."

"What is a puzzle?" Before Zhang Zong finished speaking, Zhou Wu, who was eager to learn, interrupted him and asked. In fact, let alone him, Xue Shao and Luo Binwang next to him also didn't know what the puzzle was.

Zhang Zong couldn't help feeling helpless when he heard this. The generation gap of more than a thousand years is too big. He needs to re-explain some very simple things.

In desperation, Zhang Zong picked up a piece of paper, drew his face casually, and then explained it: "Suppose the face in the picture is the murderer, but after tearing it apart, we don't know the murderer's true appearance, so we can only collect the fragments and make up the murderer's true appearance little by little."

Speaking of this, Zhang Zong paused for a moment and then said, "Now we know that the murderer is a strong man, and he has a helper and a carriage. In addition, all the dead were killed with one blow, and the method of cutting the chest and heart was very neat. From this, I infer that the murderer may have participated in the army, or may have been a profession like butcher, and he also believed in evil techniques, which greatly narrowed the scope of finding the murderer."

"But even with these, there are millions of people in Chang'an City. It is still difficult for us to find such a murderer from the vast sea of ​​people!" Zhou Wu suddenly said with a little discouragement again.

"Don't worry, I have another way!" Zhang Zong smiled confidently again, and then said to Xue Shao, "Sanlang, do you have a map of Chang'an City at home? The more detailed the better!"

"Yes, there is a picture hanging in my father's study. I'll ask someone to pick it up!" Xue Shao replied immediately, and after that, he ordered the servants to pick up the map.

Maps were controlled in ancient times, and most people really didn't have one. However, Xue Shao's father once served as the General of Zuo Fengchen Guard, one of the sixteen Guards in the capital. Later, he changed his name to Zuo Qianniu Guard to be responsible for the defense of the capital, so there is also a map of the capital in his home.

In a short while, the servant sent a complete picture of Chang'an City. It was as big as a desktop, with various workshops and streets in Chang'an City, which was very detailed.

Zhang Zong picked up the first ghost case, then found the place where the case occurred and marked it on the map, and then marked the place where the second case occurred on the map. As more and more labels were marked, Zhang Zong's eyebrows and eyes became more and more relaxed because he had discovered something.

"Brother Zhang, what's the use of marking the location of the crime on the map?" Luo Binwang asked in confusion at this time.

At this time, Zhang Zong finally marked the location where he met the victim yesterday, and then put down his pen and pointed to the map and asked: "Brother Tourism, take a closer look. These marked locations actually indicate the location where the murderer is!"

"What!" Luo Binwang and Zhou Wu shouted in unison almost in unison, with an incredible expression on their faces.

"Brother Shi, you are not kidding. Some of these crime scenes are in Chang'an County and some are in Wannian County. When you marked them just now, you were also silently remembering them, but the crime scene seems to have no rules. One time, one time, another, and the murderer has no fixed crime scene at all." Xue Shao asked with a puzzled look at this time.

Zhang Zong smiled proudly again, and then he picked up the pen and connected the nine crime scenes three years ago, and drew an irregular circle. Then he connected the nine cases last year and drew an irregular circle. Although the two circles were somewhat crossed, in general, the circle last year was larger.

Finally, Zhang Zong connected the eight cases this year and drew a larger irregular figure. This time the scope was larger, almost encircling the first two figures. However, looking at the three figures on the map, Xue Shao, Luo Binwang and others were still a little confused.

"Brother Tourism, if you are the murderer, if you want to kill someone who has nothing to do with you now, where would you choose to commit the crime?" Zhang Zong did not explain directly, but suddenly asked the oldest Luo Binwang.

"This..." Luo Binwang pondered for a moment before looking up, "If I want to kill a completely stranger, then I will definitely choose an area where I am familiar with the terrain so that I can leave safely after killing."

"It's totally correct. Chang'an City is so big, no one dares to say that he knows every corner of the city. So when the murderer commits a crime, he will definitely choose a familiar area. Generally speaking, this area is centered on his residence or the location where he often moves. So if you look at these three figures, do you find anything?" Zhang Zong proudly pointed to the map again and said.

There are generally two types of serial murder cases. One is to commit crimes everywhere. This kind of case is the most troublesome because it is difficult to locate the location of the murderer. The other is to commit crimes in a certain area. For example, the ghost case in front of you is not fixed, but they are all within the scope of Chang'an City. Therefore, the location of the murderer can be determined through this method.

"So that's it. The scope of the crime scene this year is larger than last year, and the previous year is larger than the previous year. This shows that the murderer is getting more and more courageous, and the area of ​​the crime has begun to expand outward. However, the central location of these three figures is surprisingly consistent. In other words, the murderer is likely to be in the center of these three figures!" Zhou Wu deserves to be a bad handsome man who has been in charge of the case for many years, and immediately slapped his thigh and said excitedly.

"Yes, the center position of the three figures has not changed much, which means that the murderer is likely to live in this area!" Zhang Zong said that he was slapped at the center of the three figures, and there was a Fang area called Xuanyi, to be precise, the southeast area of ​​Xuanyi Fang.

"That's great. As long as you determine the area and have the previous inferences about the murderer, even if you turn Xuanyifang upside down, I will find the murderer!" Zhou Wu slapped his thighs excitedly again. Compared to the entire Chang'an City, Xuanyifang was much smaller.

"I did not read the wrong person. Brother Zhang is simply a genius!" Luo Binwang also said loudly in admiration. They were confused about this case before, but after Zhang Zong's analysis, he had almost seen hope of solving the case.

"Don't praise me for now. These are just my own inferences. I can't guarantee whether it can be successful. You should send someone to Xuanyifang to investigate. The other party has obvious characteristics, especially those who believe in evil magic. I think there should be some abnormalities in ordinary people." Zhang Zong said again. This is the only thing he can help. As for the next action, it depends on Zhou Wu and other bad people.

"Young Master Zhang is sorry for your crime. I am a rough man. I offended him so much just now. I hope you are a great man and don't bother with villains!" Zhou Wu was also convinced by Zhang Zongxin at this time. He was a cheerful person. He would admit his mistakes and would not delay any delay.

Zhang Zong is not a slim person, so he laughed at this and did not take Zhou Wu's previous events to heart.

The case was urgent. After Luo Binwang and Zhou Wu thanked Zhang Zong, they immediately left in a hurry. They needed to mobilize all the people they had sent out to Xuanyifang, and even expanded the scope of the investigation to several yards around Xuanyifang. As long as there was a slight chance, they would never let go.

However, as soon as Luo Binwang and the others were sent away, Xue Shao and Xue Ning'er pestered him to tell stories. In desperation, Zhang Zong had to continue to play the role of a storyteller. Thanks to his favorite reading in his previous life, he didn't have any stories to tell.
Chapter completed!