No one expected that this time estimate would not come in handy at all.

Because, the next day, another body was found.

This time, it was in a well in the south of the city.

That well is still a serious draft well.

So in the morning, when someone came to fetch water, they were suddenly discovered, and then they reported the crime.

As soon as Fu Shiyi arrived at the Yamen, the body was delivered.

So the sleepy insects that didn't wake up were all awakened at once.

Others were also a little surprised.

Luo Yueqing stumbled and asked, "Didn't you say that it would be seven or nine days apart?" ”

Li Changbo's face was not very good-looking, solemn and tense, and he rarely lost his gentle and calm appearance. I only heard him say in a deep voice: "This matter is our guess, not necessarily right." ”

Zhong Youhan said softly: "The first time was in Chang'an County, the second time was in Wannian County, and the third time was in Wannian County." The location of those wells—"

"It's the bearing." Li Changbo took over the conversation, and then asked someone to get a map of Chang'an City - this thing is generally only available to the military department and the county government, and this is to arrange the defense when something happens.

Fu Shi nodded: "Only the evidence is real, and the rest is our groping, and we can't take it seriously." ”

"But now, maybe we can find a little pattern." Fu Shiyi rolled up his sleeves, and his face was also slightly gloomy: "He kills people so frequently, and every time he throws people in the well—"

Fu Shiyi muttered, "Isosceles right triangle." ”

Everyone's seriousness was broken in an instant, and only blank eyes were left to look at Fu Shiyi.

After taking the map, Li Changbo used three black chess pieces to place them in the corresponding three wells.

Then he used his finger to make a false chain: "See?" ”

But this is also easy to explain, so he also crossed out the line with his finger: "You see, the distance from the first well to the second well is equal to the distance from the second well to the third well." ”

"Then the distance from the third well to the first well, just the distance from the first two, formed a triangle."

Li Changbo even asked: "What is an isosceles right triangle?" ”

Fu Shi coughed, thinking that he accidentally leaked his mouth.

After comparing it at a right angle, Fu Shiyi said softly: "So, I think, there may be a fourth well." And the location is just as long as the first few wells from the third well. And the angle is exactly a right angle. ”

"Eventually, the four lines are connected, and it's a square square."

"Look at this angle again."

Fu Shiyi stopped and compared the angle with his two index fingers: "This is called an angle, and the angle is big and small." And now they make up this, and it's called right angles. The two horizontal and vertical lines form a particularly square corner. ”

Li Changbo put it another way: "These are the four directions. And the position of the choice is very positive. Southwest, Northwest, Northeast, Southeast, four directions. ”

With that, everyone understands.

Fu Shiyi looked at everyone: Do you understand?

Except for Li Changbo and Zhong Youhan, everyone else was at a loss.

"Little lady Fu is too smart."

In the face of this compliment, Fu Shiyi said that he was a little weak-hearted. Bite the bullet "hehe": "Actually, it's also selling knowledge, selling knowledge." I used to learn a little from the Taoist priest of Youfang. I couldn't help but say it. ”

Fu Shi 1: ...... I feel like I'm adding to it.

Li Changbo looked at Fu Shiyi's gaze, couldn't help but smile, turned his head and said, "Of course, what Little Lady Fu said is actually more accurate." What she said was that she could not only estimate the direction, but also the distance. ”

"But it doesn't matter." Fu Shiyi said righteously: "Let's catch the murderer is the most important." ”

That's right.

Li Changbo immediately became kind: "This master of the little lady Fu is very powerful. ”

Fu Shiyi looked at the sky silently: The math teacher must be very happy to hear this compliment. But they are really good, and the math they teach has impressed me for so many years......

Fu Shi nodded a little: "If this guess is correct, it can indeed be estimated." But I'm afraid—"

Li Changbo's expression was calm: "Multi-party assumptions, carefully verify." There is no more evidence at the moment and we can only do our best. ”

The crowd began to discuss again.

Xu Shuangyu looked at Fu Shiyi with sparkling eyes: "Then can the little lady Fu deduce the location of the next well?" ”

It is said that it is a little distance, but in fact, it is as far as a family.

So Fu Shiyi complained: "What do the well diggers think? Two wells so close to each other? ”

So Fu Shiyi took out a wooden stick, marked the length with a charcoal pen, and compared it directly on the map: "This is almost the location." This well. ”

"Huh." Fu Shiyi was a little speechless: "There are two wells here." It's just a little bit apart. ”

Fu Shiyi also decided not to care.

Zhong Youhan frowned: "It's not far, when the time comes, bring a gong, as soon as something happens, as soon as you strike the gong, you can support each other." All watched. ”

Is this idle and okay?

Li Changbo looked calm: "The thing of digging a well has always been a matter of a millimeter, and it will not produce water, and the water may be sweet and bitter." I can't tell. ”

Xu Shuangyu asked stunned: "That...... What should I do if I fetch water? And we don't know who the murderer is. ”

That's a real problem.

Luo Yueqing asked: "Do you want to send someone to guard it?" ”

"Hmm." Li Changbo bowed his head: "Let's catch turtles in an urn." ”

Li Changbo's expression was faint: "Let's just say that I suspect that someone is poisoning, and before we are sure that it is safe, let the people nearby go to other places to fetch water." ”

"Others, coming so far to fetch water at this time, are more or less for a reason. Check them one by one. ”

If someone really comes to fetch water, will you let it?

And...... Anyone who comes can say that they are here to fetch water.

Everyone couldn't help but nod: Indeed, if you can save a child, it will really be worth the effort.

Fu Shiyi clapped his hands and looked at Zhong Youhan with a smile: "Okay, let's conduct an autopsy." We don't need to investigate this matter, let's do what we have to do. ”

As soon as he said this, everyone couldn't help but be speechless: It's easy to investigate one by one, so how much more work will it take?

As if reading everyone's thoughts, Li Changbo sighed lightly: "At this time, I can't care about so much." After all, human life is a matter of heaven. ”

Zhong Youhan bowed their heads, and the four of them went directly to the autopsy.

The body has been placed on the coroner's bench.

For forensic doctors, the autopsy is the greatest help to the case.

It is the duty of every medical examiner to listen to the words left by the deceased.

This time, it's still a little boy, looking swarthy and swarthy, and at a glance, he knows that he runs out a lot in the summer, and he must be a lively and active character.

Everyone looked at Fu Shiyi in unison.

Fu Shiyi was dressed neatly and put on gloves: "Come on." ”