Xu Feng's investigation has made some progress.

Cheng Nan locked the trail of the white van by hacking into the system of the traffic management monitoring center, but there was only a large circle of activities, and there was no exact location.

Cheng Nan searched for a map of City A on the computer, and clearly pointed out the last place where the white van appeared, as well as several locations that often appeared.

"At present, it can be determined that the murderer last appeared on the section of Princes Street and Limin Road, and there is very little surveillance on Limin Road, so the exact location cannot be determined, but it must be in this vicinity."

Xu Feng's brows furrowed.

This result made him a little disappointed, and he thought that he could find a more definite clue.

"So what?"

Cheng Nan glanced at him, "So, if you keep an eye on Limin Road, or search a wide range on Limin Road, you will definitely be able to find the trace of that van." ”

"Are you sure?"

"I ...... Not entirely sure, but that's where the van was last seen, and I think it should have parked somewhere on Limin Road. ”

"Hidden location." Xu Feng added.

Cheng Nan nodded heavily, "Since the murderer used that van with a fake license plate to commit the murder, the location where the car was parked must be very hidden, and it is estimated that it is not easy to find." ”

"Then you'll have to find it."

Remembering that Zhou Wen gave him a tracker, he took it out and handed it to Cheng Nan.

"How do you use this thing?"

Cheng Nan took the box, opened it, and found that it was a police tracker, and was a little surprised, "Are you a policeman?" ”

"It's not."

"Then why do you have such a thing?"

"Why do you have so many questions?"

Cheng Nan pursed his lips, studied the tracker carefully, and said to Xu Feng: "Actually, it's very simple, this thing is fixed on any moving thing, it can be tracked, and the information can be connected to a mobile phone or computer." ”

"Help me connect to my phone."

"I think it's better to connect to the computer, if you really find that car, you can fix the tracker under the car, and then my computer here will display the movement information of the vehicle, you save my phone, we can keep in touch, for your safety, it is dangerous to look at the phone while driving."

Cheng Nan originally just came to help at Yu Qian's request, and made a bonus by the way, but after learning that the missing person was Xu Wenwen, he decided to help Xu Feng and find Xu Wenwen.

Even if he and Xu Wenwen can't become boyfriend and girlfriend, he still likes Xu Wenwen in his heart, and he doesn't want Xu Wenwen to have any three strengths and two weaknesses.

"What do you think of my suggestion?" He asked Xu Feng what he meant.

After hesitating for a moment, Xu Feng said solemnly: "You'd better not drop the chain at a critical moment." ”

"I will return this sentence to you as it is."

“……”

Next, he and Cheng Nan left each other's mobile phone numbers, and after that, Cheng Nan connected the tracker to the computer.

He and Yu Qian drove their respective cars to 'stroll' on Prince Street and Limin Road, during which the two kept in touch at all times.

In order to be able to concentrate more when driving, he deliberately used Bluetooth headphones.

The headset was given to him by Xu Shuang on his birthday last year, and he hardly used it.

Speaking of which, today happens to be his birthday......

If it weren't for the Bluetooth headset, he wouldn't have remembered this incident at all, all he wanted was to find the van as soon as possible, the perverted murderer, and rescue Xu Wenxin.