In recent years, computers and artificial intelligence have developed rapidly.

But I have to admit that some things are still done as a human subject, faster, more efficiently, and even more accurately.

Tang Tian took out his mobile phone and took a picture of the mark on the sofa first.

He switched several angles and took a dozen photos.

If it's just a photo, because of the light, the plush will not be seen very clearly in a certain direction, so you have to change the angle at this time.

Although at Tang Tian's age, he was far from the point of intellectual degradation, but after all, he hadn't done anything like that for a long time, and after taking the photo, he stared at the faint mark on the sofa for a long time, and he only saw one word.

This word was written down by Qu Liuqiao at the end, and it was also the most obvious word, it was a 'tic-tac-toe', in addition, Tang Tian also saw that the mark on this plush was at least three words.

In order to avoid being discovered by the murderer, Qu Liuqiao wrote these three words together. Even Tang Tian, just relying on this faint mark to calculate, he didn't dare to make a judgment.

He kept the mark on the couch firmly in his mind, and once again made sure that he had taken the picture from all angles before slowly exiting the room and closing the door.

He believed that it would not be long before someone would come here to investigate the relevant clues, and there was no need for the traces on the sofa to alert these latecomers, the only function of the mark was to help them find the weak wind.

It is impossible for anyone but him to take this mark as a clue or evidence.

Xiang Yu was still watching the video in the security room, and when Tang Tian found him, he just fixed the picture at the entrance of Building 8.

The screen shows that the man who left with Qu Liuwan was a man in a black sweatshirt, who always wore the hat of the sweatshirt on his head and a scarf around his mouth when he entered and exited.

He walked with his head down, not even seeing his eyes.

"The person knew the location of the camera long before he got out of the car. Tang Tian looked at it for a while, and then judged the general situation of the matter, "He left here with Qu Liuqiao. Where did you go?"

Tang Tian's sentence was to ask Xiang Yu, the advantage of contemporary society is that as long as you can determine the license plate number, through the cameras everywhere, you can completely simulate the trajectory of the car, and even where it is parked now.

"This license plate number, I already asked people to check it two minutes ago. It was a lost car, and the owner of the household had called the police a month ago. Xiang Yu pointed to the black Volkswagen sedan on the computer screen, "This is the first time this car has appeared in a month." ”

As he was talking, Xiang Yu's mobile phone suddenly vibrate.

After hanging up the phone, Xiang Yu immediately got up: "The location of the car has been roughly determined, and the last place it appeared was near the West Ring Road, which is less than ten minutes' drive from us." ”

"West Ring Road?" Tang Tian's heart suddenly turned cold, he was very familiar with that place. In addition to the main roads, there are many intersecting paths, most of which are private houses.

In the alleys of those houses, there is no possibility of surveillance cameras.

Xiang Yu obviously knew this: "That place may not be easy to find, but fortunately, we can demarcate a range, if this car appears again, someone will call me at any time." ”

The two of them got into the car as fast as they could, heading towards the West Ring Road.

They are now competing with the murderer, and the sooner they can find the car, the sooner the life of the warp will be guaranteed.

"Qu Liuqiao's current situation is very dangerous, but I don't know, why did the murderer arrest her? and even went to her house, Qu Liuqiao is not such an easy person, if you say this, the murderer may have already known the location of her home, as for the murderer, he wasted so much energy, he just went to her house to find a photo?" Tang Tian's mind suddenly flashed a spiritual light, he seemed to have caught something.

"Team Xiang, do you still have yesterday's photos?"

"Yes, but there is no original version, that thing was put in the game by me along with the notebook, and left it for Jia Zuozhen's kid to study. I still have the remade photos here. With that, Xiang Yu handed the phone to Tang Tian, "The first one to open the album should be." ”

Tang Tian found the photo as quickly as he could, his eyes searched carefully for this photo, and soon, his eyes focused on the second row of the photo, the little girl in the red plaid dress.

This little girl looks six or seven years old, the photo is relatively old, and her face is already blurred.

But Tang Tian already had a clear conjecture in his heart, the moment he saw this little girl, he was almost sure that the little girl's eyes were weak and thoughtful, it was a photo of her when she was a child!

The little girl also had a hand on her left shoulder, and the hand came from an adult woman behind her, but other than that, looking around carefully, Tang Tian couldn't find anyone who showed intimacy with this middle-aged woman.

"I seem to know. Tang Tian handed the mobile phone to Xiang Yu, "Team Xiang, this person may be Qu Liuqiao." ”

"What?!"

Crunch!

Xiang Yu stepped on the brakes, took the mobile phone and enlarged the photo, looked at it carefully for a while, and didn't find out which one was meandering.

Tang Tian stretched out his hand and dotted on the photo, so that the girl in the red lattice attracted Xiang Yu's attention: "Looking at it this way, it really looks a bit similar, especially these eyes, it's just ......"

Xiang Yu obviously has some doubts, Qu Liuqiao is related to this case? This is unlikely, right?

But since Tang Tian said so, he must have a lot of confidence.

After a few days of contact, Xiang Yu was very willing to believe Tang Tian's judgment.

"It's just that if Qu Liuqiao has something to do with this case, why didn't she say it? As a criminal police officer, she should know very well how much help we can provide these clues by herself. Tang Tian was also thinking about the same question.

"These questions can only be asked to her when she returns, and now it is imperative that we find her, and we must not let her be in any danger again, but I can ask about her family history. ”

After Xiang Yu finished speaking, he glanced at Tang Tian, but found that Tang Tian had just finished speaking his words, and he had already put all his attention on the photos of his own mobile phone, thinking about something.

Xiang Yu later called people to confirm Qu Liu's family background, and it didn't seem to attract much attention from Tang Tian.

"I don't remember any wells on this side of the West Ring Road, but further west of this place, there are some vegetable patches, and there may be water wells there. But that place is still more than 20 minutes away from the West Ring Road......"

Tang Tian pondered the meaning of the word 'well' in his heart: "Naturally, this 'well' may also be a sewer, which should be a lot in that alley, but it is just that people are hidden in a small waterway in broad daylight?"

Tang Tian thought like this, as if he could vaguely distinguish the most difficult of the three words, and it was also the first word to be written by Qu Liuweak, which was the word 'west'.

"The first word is west, which stands for the West Ring Road, and the second is the word 'well', which represents a specific location, so what is the word in the middle? This word should be able to give us a general range. Tang Tian was muttering, Xiang Yu also leaned over to take a look, and found that what Tang Tian photographed was just a plush toy, a little unclear.

But now that Tang Tian had obviously fallen into his own world, Xiang Yu was inconvenient to disturb him, so he had to do his best to increase the speed of the car to the maximum.

Soon they came to the spot where the black sedan had disappeared from the surveillance.

"This is where the viaduct is located, and further down there are large residential houses with a lot of small alleys. If the killer parked his car here, or parked in a certain house, it would be more difficult to find. Xiang Yu slowed down the car and drove the car from alley to alley, expecting to find the black car, if the car was still parked on the road, it would undoubtedly be good news for them.

But if you can't find it, it means that the car has been parked in a house, and it will be more troublesome. Even if it makes it easier for them to find the murderer afterwards, for now, it is not beneficial to the safety of the weak wind.

The good news is that ten minutes later, Xiang Yu finally found the car, which was parked in the middle of a small alley.

"The murderer could not have made such an obvious mistake, he parked the car here, and the only possibility is that the car has been abandoned by him. Tang Tian's thoughts were interrupted by the inertia of Xiang Yu's natural forward body after he stopped, he followed Xiang Yu out of the car, and when he came to the car, he found that the car was empty.

"You go ahead and study that thing of yours, and I'll ask the guy next to me. Xiang Yu pointed to the side, not far away, there was an old woman with a large pot of vegetables.

Tang Tian didn't speak, put the mobile phone flat on the roof of the black car, and kept changing the direction of the photo in the mobile phone, the last word 'west' and 'well', is it 'leather'?

"Leather, leather leather, where is this?" Tang Tian immediately thought, and continued to walk west, as if there was such a tannery.

He hadn't delivered there before, but he had seen the location of the tannery on a map and had made a note of it.

"The tannery is still far from here, and we don't have time to delay here. Tang Tian was thinking about it, Xiang Yu had already trotted all the way back.

"I asked, there's a silver van parked here this morning. It's just that early this morning, the silver van turned into this black car, and the people nearby don't know who the two cars belong to. ”

"In this way, if there is no accident, the car is abandoned. Tang Tian had already started to run back, "Get in the car, there's a tannery near here, let's go there." ”