In the past few days, Su Le and his friends spent almost all their time watching videos except on duty outside. Except for a few hotels without surveillance videos, they watched all the surveillance videos of the login locations with the qq nickname bh472300, but did not find any valuable clues.

"Will there be any problem with our thinking?" Su Le said to several other colleagues holding computers.

"What's wrong with your thinking? Tell me." Dr. Qiao happened to enter the house and heard Su Le's question.

"Yes, ask Dr. Qiao to serve as the staff officer." Zhang Pengfei stretched his arms and stood up and said.

"There is no problem for the staff officer, as long as someone invites you to dinner." Dr. Qiao couldn't forget to eat as soon as he opened his mouth.

"Who said he would invite me to dinner, so he didn't call me." He Xiaohui also walked into the house at this time.

"Dr. Qiao invites us to dinner. Seeing that we are all tired, he wants to reward us." Ding Yiran quipped.

"Okay, everyone will go today, don't save him money." He Xiaohui greeted everyone.

"It's okay to invite a meal, then I won't be your adviser!" Dr. Qiao said with a smile.

"If you can give us a good idea, we will invite you." Su Le said.

"Okay, let's listen."

"We copied the surveillance video from each surveillance place based on the login address of the qq account. Then we came back and watched for a few days and nights, but we didn't find any clues. Are you talking about how we can find the qq account?" Su Le briefly introduced the situation to Dr. Qiao.

"QQ number, login address, video." Dr. Qiao walked to Su Le's seat and sat down, browsed the video he was watching, and then he slapped his thigh and stood up and said:

"I know the reason."

"What's the reason? Tell me quickly." Su Le asked.

"I can't say it now, I have to go to the hotel to say it." Dr. Qiao kept it in a silence.

"That won't work. What if you say nothing makes sense after you finish your meal?" Su Le couldn't fall for him.

"If I say something unreasonable, I will pay the bill." Dr. Qiao said confidently.

"Okay!" Everyone heard that there was a good thing about having a free meal, and they all cheered.

Under the leadership of Dr. Qiao, they found a small restaurant on the food street. The doorsteps on this street are all restaurants, so they are called the food street.

Everyone sat in the room, waiting for the meal to be served. Dr. Qiao took out his cell phone and said to everyone:

"I can solve the mystery now. Please take out your phone and open the wireless network connection interface."

Everyone took out their phones with suspicion.

"Now you see it, how many wireless networks are there in your phone?" Dr. Qiao said with a proud look.

"Oh, I understand!" Su Le first discovered the problem because he saw seven or eight wireless network signals in the wireless network list of his mobile phone. The signal ranked at the top is the best, and the signal downwards the worse it is.

"Oh, I understand too. He can log in with the network next door, so how can we find it?" Everyone was reminded by Su Le and all understood what Dr. Qiao meant.

"But if you don't go to the next store, how do you know the password?" Ding Yiran asked a question.

"There are many kinds of apps that can crack wireless network passwords, which were quite popular in the past few years. In recent years, due to the price reduction of mobile phone traffic and the gradual focus on personal privacy, everyone does not deliberately log in to other people's networks outside. So everyone can't remember that there are such apps." Dr. Qiao said, shaking his phone.

"Oh! It's a waste of effort." Deng Ru sighed and said.

"If we follow this idea, the owner of QQ doesn't have to come to the hotel at all. He parks his car outside the hotel and can also use the hotel's network." Su Le said.

"Yes, if you had invited me to dinner early, you wouldn't have stayed up late." Dr. Qiao looked at everyone with a smirk.

"Okay, you won, I'll treat this meal." He Xiaohui said.

"Ah, please, I'm so embarrassed. Why don't I invite you back to watch a movie?" Dr. Qiao looked at He Xiaohui with a diligent look on his face.

"Sorry, right? Please ask!" He Xiaohui glared at Dr. Qiao and said.

Although Xu Feng bought a car, in order to save money and avoid traffic jams from work, he still took the subway when he was on the get off work. The company is very close to the subway entrance, only a few hundred meters away. Because the place he rented is relatively remote, it takes about twenty minutes to walk to the subway entrance.

Today, Xu Feng got off work a little late, so He Fang temporarily arranged for Xu Feng to write a report, but he did not finish it until after 9 pm. It was already past ten o'clock when he came out of the subway. He packed a dinner at the stall on the side of the road and prepared to take it home for food.

The road at the door of my house is a section of people and cars walking in a mixed road. There is no separate sidewalk, but two white lines are drawn on both sides of the road. Since it is too late, there are not many pedestrians on the road and there are not many vehicles. Occasionally, pedestrians pass by the opposite side, and the sound of vehicles passing by from behind me from time to time. Xu Feng was wearing headphones and listening to his favorite songs, and was walking on the road with a humming sound.

A white light shot from a distance from behind him, pulling Xu Feng's shadow so long that it was impossible to see the end. As the white light gradually approached, Xu Feng's shadow was shortening quickly. A car roared past, and a roar came from behind him. Xu Feng subconsciously turned around and saw a white light flying towards him. Xu Feng was frightened and stayed there and didn't know what to do. At this critical moment, Xu Feng felt his collar pulling hard and his body flew backwards. The white light bit Xu Feng's calves like a wild beast, and flew away like a flying one.

He Xiaohui's cell phone rang rapidly.

"Team He, Xu Feng is injured, and he has notified the ambulance to rush here." An anxious voice from the criminal police team members came from the phone.

"Ah, how about it? Is life-threatening?"

"It should be no life-threatening. Our people pulled him in time and just touched his calf."

"Another car accident?"

"Yes, on the road in front of the community where Xu Feng lives, a car attacked Xu Feng from behind. Fortunately, we felt that this section of the road was unsafe and made arrangements in advance."

"Okay, let's go to the scene right away. You can leave one person to protect the scene. Others follow Xu Feng to the hospital, so you must ensure his safety."

There were no other valuable clues except for a few black plastic sheets of front bumper on the scene. After collecting evidence on the spot, He Xiaohui divided the personnel into two groups, Zhang Pengfei and Deng Ru went to the surveillance center to record the video. She and Su Le went to the hospital where Xu Feng was located.

Xu Feng had just finished the operation and had a fracture of his tibia on his left leg. His injury was not too serious, but he had to rest in bed for a while before he could get better. When Su Le and his friends saw Xu Feng, his mood was quite stable and he had stabilized from the fear of being hit by a vehicle.

"Thank you for saving me." Xu Feng's first words when he saw He Xiaohui and Su Le were to thank them. He had learned from the police who rescued him that if the police had not implemented 24-hour uninterrupted protection measures on him this time, he might have died now.

"You are too reckless!" He Xiaohui said to Xu Feng bluntly.

"Yes, do you think you can face these vicious criminals? This time you are really lucky and asked us to find your traces, otherwise the one who lies here today might be a cold corpse!" Su Le also said to Xu Feng without hesitation.

Xu Feng was lying on the bed, tears of regret flowing from his eyes. He Xiaohui took out a tissue from her pocket, handed it to Xu Feng and said to him:

"Don't worry now, you're safe. Tell us why you wanted to enter He Fang's villa? What do you want to find there?"

"I went to the villa for my father and Uncle Zhang."

"Uncle Zhang? That Uncle Zhang?" Su Le asked.

"It's Zhang Guifu, it's Meng Yuanming."

"Oh, are you the one who entered the dumpling restaurant on the night of June 17?" Su Le asked in surprise.

"Yes, it's me."

"Are you the student sponsored by Meng Yuanming?" Su Le had roughly guessed the relationship between Xu Feng and Meng Yuanming at this time, and just wanted to confirm it again.

"Yes, it's me. Uncle Zhang, not Uncle Meng. He has sponsored me to go to school since I was very young, and he also sent my mother a living expenses every month."

"Didn't you and your mom ask why you supported you?"

"The school teachers told us that someone wanted to fund a child to go to school and ask the school to provide a list of children with difficulties. Uncle Meng selected our family from the list."

"Did you send that anonymous letter to the police?" Su Le asked.

"I sent it."

"How do you know that his name is Meng Yuanming?"

"That night I went to the dumpling restaurant to find Uncle Meng, so I opened the door with the spare key he gave me, and then found Uncle Meng's diary in the drawer on the second floor."

"Oh, is there any important information in the diary?"

"No, I have sent you all valuable content through QQ."

"The owner of that qq number is indeed you."

"Then why did you think of going to a villa on the mountain?" He Xiaohui asked.

"I recorded a conversation between He Fang and Xuan Jianzhang. They might have wanted to kill a little girl. The matter was not done well. He Fang asked Xuan Jianzhang to make arrangements again. Xuan Jianzhang said that he would make arrangements immediately when he arrived on the mountain. I thought that they might have equipment to contact the murderer in the villa on the mountain, so I wanted to find them in the villa."

"The villa is full of cameras, don't you know? You were discovered by them as soon as you entered the villa, so when they came back, they immediately arranged to get rid of you."

"Ah, really, I didn't expect this." Xu Feng said with some fear.

"Did you find any other clues at Anyong Company?"

"I also found them to sign a contract in 2005 about the demolition of Gui'an Meijing Community. At that time, Anyong Company contracted the work of demolition and smoothing the land to a local enterprise called Encheng Construction Company."

"Do you know the information about this company?"

"I don't know, there is no information about this company on the Internet. I only know that the contract amount was 100 million yuan at that time, and the person who signed the contract was named Guo Encheng."

"100 million? Do you have the contract for that year?"

"Yes, I scanned all the information of Gui'an Meijing Community in an electronic version and stored it in my mobile phone."
Chapter completed!