Perhaps because of the usual uninterrupted practice, Fu Liangtao and Pang Jitong walked from the thirty-third floor to the bottom of the building in just ten minutes. Fortunately, the ventilation design of the stairwell is better than that of a closed corridor, otherwise Fu Liangtao and Pang Jitong would definitely be soaked in this sultry weather, unlike now, they only added a thin layer of sweat to their bodies.

As soon as he walked to the bottom of the building, Fu Liangtao felt the mobile phone in his bag begin to vibrate. Fu Liangtao took out his mobile phone and looked at it, but it was Xu Jingjia's call.

For a while, Fu Liangtao couldn't tell whether Xu Jingjia really wanted to call him, or if he just touched the phone screen by mistake again. However, Fu Liangtao didn't think much about it and picked up the phone and said, "Hello, I'm Fu Liangtao from the Technology Crime Unit."

I only heard Xu Jingjia say, "Fu sir, hello! I'm Xu Jingjia. Have you ever looked for me?"

Hearing Xu Jingjia's words, Fu Liangtao couldn't help but think of the scene when Xu Jingjia passed by the smoke-proof door just now, and thought about it, but he didn't think that Xu Jingjia had seen Pang Jitong and him. Fu Liangtao then asked, "Miss Xu, didn't you look for me first?"

Xu Jingjia's end suddenly lost sound, Fu Liangtao listened to the fragmented background sound, but remembered Xu Jingjia's calls and messages with only background sound, and said, "By the way, Miss Xu, I received your messages and calls two days ago, but I only heard the background sound and the conversation between you and your friends......

Fu Liangtao's words were only halfway through, and he estimated that Xu Jingjia could understand what he meant, so he didn't say any more.

"Oh, I see...... I think my phone is broken, and I know it happens occasionally." Xu Jingjia said embarrassedly, "I'm sorry, Sir Fu, I didn't disturb you, right?"

Fu Liangtao responded, "It doesn't matter, then again, Miss Xu, what are you looking for me?" Bring the conversation back on track.

I only heard Xu Jingjia reply apologetically, "I'm sorry, Fu sir. I think that's a problem with the phone as well."

Fu Liangtao was a little surprised, so he asked, "So, Miss Xu, you haven't looked for me?"

"Yes." Xu Jingjia's concise answer suddenly cut off many of the possibilities that Fu Liangtao had imagined.

Fu Liangtao had no choice but to ask, "Miss Xu, I have tried to contact you many times in the past few days, but your mobile phone is always turned off. You see, this time I'm leaving you a message, and you're going to have to wait about three days to get back to me. Miss Xu, is there any other way for me to find you directly?"

Hearing Fu Liangtao's question, Xu Jingjia was silent for a while before telling Fu Liangtao another phone number. Fu Liangtao had an impression of this string of numbers, because Fu Liangtao had only seen this string of numbers when he was investigating Xu Jingjia's billing records a few days ago.

It was Xu Jingjia's mother's phone number.

However, in order not to attract Xu Jingjia's attention, Fu Liangtao did not say it directly, but continued to ask, "Are you sure I can find you directly through this string of numbers?"

"Yes."

"Okay, Miss Xu, excuse me." Fu Liangtao and Xu Jingjia politely said a few words, and then hung up the phone.

As soon as Fu Liangtao hung up the phone, Pang Jitong, who was standing beside him, asked, "This means that Xu Jingjia didn't look for you?"

Fu Liangtao nodded and replied, "That's right."

The two of them walked slowly towards the parking lot of the public housing estate, only to hear Pang Jitong ask again, "Well, the phone number that Hui Jingjia gave you just now, could it actually be her usual phone number?"

"It's unlikely, it's her mother's mobile phone number, and her mother only has this one mobile phone number. This should be Xu Jingjia just now when she had no choice but to think of giving me this mobile phone number......

Fu Liangtao glanced at Pang Ji and explained, "I know what you're thinking...... However, if she is really related to the cases of Li Bingde and Zhou Muqing, and is the one who modified the Trojan horse program, she will definitely not know what a mobile phone number means, and the number she can tell us will only be innocent."

Hearing Fu Liangtao's words, Pang Jitong nodded with a deep groan.

Fu continued, "Now, we need to start with Hui Jingjia's lifestyle habits to determine her computer skills. Moreover, according to the old lady just now, Xu Jingjia is not always closed, and occasionally she will go out to buy as she did today. However, the cell phone activity and base station connection records in the billing records do not reflect these subsections.

It can be seen that when Xu Jingjia goes out, she does not necessarily bring her mobile phone."

Pang Jitong nodded in agreement with Fu Liangtao's words, and said, "Sir Tao, if what that old lady said is true, I don't think what Xu Jingjia said to us is all the truth.

The old lady said that Xu Jingjia started to stay at home not long after graduating from middle school, but Xu Jingjia told us that she was too busy with part-time work and study to cut off contact with Zhou Muqing and other friends. Obviously, the old lady's statement contradicts what Xu Jingjia said to us."

Although Pang Jitong's tone was confused, it was obvious that he had a tendency to think that Xu Jingjia was lying.

Fu Liangtao then said, "Hui Jingjia's university courses are run by local universities, and whether there is any fraud in academic qualifications, whether she is studying full-time or part-time, attendance rate, etc., are all known at a glance, and she should not choose to make a fuss in this regard."

"So, the contradiction in this statement is in the aspect of work?" Pang Jitong asked.

Fu Liangtao replied, "It's very likely. So, we need to investigate what work Xu Jingjia did in those years. If Xu Jingjia really lied, then dwell on the reason why she lied."

Pang Jitong thought for a while before he said, "The reason why Xu Jingjia is lying is that he wants us to think that it is reasonable for her to break off relations with Zhou Muqing?"

Hearing that Pang Jitong had concluded that Xu Jingjia was lying, Fu Liangtao did not refute Pang Jitong's words, but asked rhetorically, "What about Li Bingde? Now that it is confirmed that Xu Jingjia is not Li Bingde's affair partner, what is her motive for committing the crime?"

Pang Jitong turned to look at Fu Liangtao and asked, "But, didn't you also say before that Xu Jingjia is the only intersection between Li Bingde and Zhou Muqing?" Doesn't Xu Jingjia's billing records also show that the time when she changed her habits matched the time when Li Bingde and Zhou Muqing were harassed?"

"In your heart, have you already determined that Xu Jingjia is the perpetrator?" Fu Liangtao asked again, and seeing that Pang Jitong was silent at this moment, Fu Liangtao said lightly: "This is not good, it will affect your judgment."

Pang Jitong hurriedly stepped forward, turned around and blocked Fu Liangtao, looked into Fu Liangtao's eyes, and asked, "But, isn't Xu Jingjia suspicious?"