"By the way, Huang Na, can you check what the things you took out between Dai Li's fingers? What kind of substance is it? ”

"I checked this, it's a kind of fiber, and it's generally used as a rope for binding, and I don't know where it came from."

"Okay, I'll tell you if I have news from here."

After hanging up the phone, I handed a flashlight to the old wolf, and then said to the old wolf, "I'll use the phone to communicate with you next." ”

Before the old wolf could understand what was going on, I beckoned two police officers over and said to them, "Use your equipment to check where is the place 200 meters upstream?" ”

The police quickly found out that the place 200 meters upstream was still clearly marked, and there was a relatively large stone.

I hurriedly ran to the edge of the stone and called the old wolf, who said to me in confusion and dissatisfaction, "Zhou Zheng, what are you doing?" I don't even know what your plan is. ”

"Hey, old wolf, don't ask, I'm going to put a cigarette butt down into the river now, you point the flashlight at me, and the cigarette butt will light it up as soon as it comes to you, understand?"

"I see." There was also some clarity in the old wolf's tone, and it should have been that he had guessed what I wanted to do.

I hung up the phone and turned up my phone's stopwatch. The other side got the cigarette butt down, counted three counts silently in his heart, put down the cigarette butt, and the other side lit the beginning on the stopwatch, and stared at the old wolf.

After about half a minute, the flashlight on the old wolf's side suddenly lit, and I quickly pressed the pause, and the time displayed on it was 32 seconds 6. With this data, I ran all the way to the old wolf.

"It's almost 32 seconds six, the flow speed of the river is 200 meters, it should be able to calculate, work backwards, if it was 5 o'clock to 6 o'clock last night and the body was thrown into this river, then there will be three hours in this river, you calculate how many meters you will find upstream in these three hours."

"But wouldn't there be any error in this? Including the time when the body was thrown, and the weight of his body itself? ”

"The margin of error should be within two kilometers, don't worry, I know it."

The old wolf asked for a map of our province and began to calculate, and after three minutes of calculation, he drew an area on the map and said to me, "It should be in this area." ”

"Are all possible intervals in Bac Giang City?"

"Yes." The old wolf replied to me, "Do you need me to contact the person in charge of Beijiang City?" ”

"Not yet, in this section, can you see if there is a dock or a cargo terminal?"

"By the way, especially the abandoned ones." I added one more sentence.

The old wolf took the map, but he didn't find one, so the map would not mark the dock or the cargo station, especially the abandoned ones, which had already been replaced.

"We might have to contact the locals about this."

"We are in the police station and call the local police station to contact us about this."

The old wolf picked up the phone, and after a while, he came back and said to me, "The contact over there has been completed, and when I inquired about the local area, there is indeed an abandoned wharf that has been abandoned for more than five years, and the local government has not planned it and does not know what to do." ”

"Contact over there, we'll go over there now."

I said to the old wolf, took out the phone, told Huang Na about it, and then stepped on the long-distance bus with the old wolf to the dock.

But by the time we got there, it was completely dark, and we couldn't find any clues to get there, because there wasn't any lighting at all.

The old wolf and I had to find a hotel to stay in first, and at about 9 o'clock in the evening, I received a phone call, and to my surprise, Huang Na actually arrived.

When I saw Huang Na in the hotel, he hugged me and pinched the soft flesh around my waist fiercely.

The old wolf didn't come up to help, but just laughed on the side, and after making trouble for a while, Huang Na pouted dissatisfiedly and said to me, "You came to Beijiang City just for work, and you can't accompany me more at night?" Did you come here and find any clues? ”

Huang Na's tone was full of dissatisfaction, and I knew that it was not that I was so focused on my work, but that Huang Na was dissatisfied that I didn't bring him.

"Okay, okay, I didn't find any clues, didn't you come too? I'll tell you about it. ”

I told Huang Na all my inferences, Huang Na heard the final conclusion, her little mouth couldn't be closed, I didn't know what Huang Na meant, so I said to him curiously, "Is your expression so exaggerated?" ”

Huang Na looked me up and down, and said to me, "I didn't expect you to have the ability to do this, your reasoning is so tight, I don't think anyone can find a logical problem from it." ”

I smiled and said to Huang Na proudly, "That's right, we'll go there early tomorrow morning to see if it's the real place where the crime happened." ”

Because Huang Na came, she opened another room in the hotel.

Huang Na and I are in one room, and the old wolf is in another.

Because this matter has progressed, I feel a little more relaxed, and went to bed early, until I got up early the next morning, I thought that I would get up at 8 o'clock in the morning is early enough, but I didn't expect that when I got up, Huang Na and the old wolf had already gotten up, and they had already been sorted out.

I quickly washed up, and set off with the two of them to see the abandoned dock.

When I got to the abandoned dock, I realized that it was too big, and I didn't know where to find it.

"Let's start from the shore, if it's a sunken corpse, maybe there will be some clues on the shore."

This time we didn't look for long, and soon found a clue, because on one of the second-floor platforms we found a blood stain, which was about three meters long, and extended into the water.

"Can you find anything in these bloodstains?"

Nothing was found except for this bloodstain, because it was an open-air platform, and the wind was relatively strong, and anything broken had been blown into the water.

I frowned, looking at the bloodstain, I suddenly turned back to Huang Na and said, "Huang Na, where is the bleeding wound on his body?" ”

Huang Na was also stopped by me for a moment, and quickly took out her mobile phone and rummaged through the photos inside, which were the deceased Dai Li's.

"In the abdomen, there is a knife wound on the left abdomen, the wound is relatively large, it should be there."

In the abdomen, in my mind, imagining the location of the wound, suddenly lay on the ground, startling both the old wolf and Huang Na.