The recording of the police questioning is as follows and has not been abridged:

"Name, age, occupation."

"Peng Liyao, 24 years old, detective."

"Parents' names and occupations."

"I'm an orphan."

"Well, I'm sorry, tell me why you went there?"

"Looking for someone, someone told me that the person I was looking for appeared there last, so I went over to take a look, but I was only sure that the person I was looking for appeared there, and nothing else was found, but a body was found."

"Did you know where it was?"

"If you asked for the way, I know, if it's the house, I don't know, I can find it or if the residents show me the way, and I asked the residents if they have seen the person I'm looking for, and they told me where the person went, and then the residents took me there."

"Look at this person, do you think anyone has tried this person?"

"No, no, let me think, isn't he the first person to go missing?"

"You know?"

"Of course, there was information about him in the news every day during that time, so even if I didn't know, it was unlikely."

"Why do you focus on the news every day?"

"I'm a detective, it's normal to talk about the news, and sometimes the task may be entrusted to me by those people, so naturally I need to find some traces of those things on the news, and my office has a lot of briefings on other news, if you need it, you can go to my place."

"What else do you know about the dead?"

"I only know what the news says, did anyone ask me to go to him, I don't need to investigate this matter myself, no one likes to do it in vain, do they? So I didn't look into it. ”

"Looks like you're realistic."

"Of course, even if I want to be idealistic, I have to fill my stomach first, don't I? Fantasy can't fill your stomach. ”

"We got a call from the police before we went over, did you call it?"

"No, even if I want to call the police, I must take a good look at the scene first, otherwise your police will come, and the scene will be blocked, how can I find clues, which is not conducive to me looking for the person I am looking for at all."

"Did you find any clues?"

"No, because there was a lot of ash, I didn't have time to turn it over."

"And when are you going to flip it?"

"At least let me take a good look at the house, I just recorded and took pictures first, and the rest is not too late."

"Why is it too late?"

"Because you're here, I was going to rummage through all the photos and recordings, and I've got gloves on me, so you can look at my bag if you don't believe me."

"Since it's not your call, who do you think it will call?"

"I don't know, first of all, when this body appeared; Secondly, if it is my enemy, there are more enemies in my business, but if they want to frame me with a human life, they should not have the ability. ”

"Sorry to excuse me, Captain, this is for you."

"You go out first."

"Where were you a week ago?"

"I'm in the office, I can show you the punch-in record if I need to, the deceased has been dead for a week?"

"Well, I'm sorry we can't reveal it."

"Then you can just say that what I said is not right."

"Yes."

"The deceased had been dead for a week, but the ash was wrong there, and there were no signs of a struggle in the room, plus there were no other people's footprints on the ground before I entered, I think the scene or the whole house was deliberately cleaned up, and the missing person I was looking for had also been there, but there were no footprints, plus he was last there, I suspect that the person who killed the deceased and kidnapped the missing person is the same person."

"You're pretty good at it."

"Thanks for the compliment, as a detective, I must have to make my own judgment, otherwise I wouldn't be doing this business, would I?"

"That's a good point, is there anything else you want to say?"

"Yes, did you find any palm prints in the study? That palm print is not mine, I had it before I went in, you can compare the fingerprints, maybe you can find something. ”

"Okay, thank you for your cooperation, someone will see you off later."

"I have a request, I don't know if it's okay."

"Tell me about it."

"I can help you investigate this matter, but at the same time, you have to tell me the progress of the investigation, and I will keep it a secret."

"I can't answer you right now, I'll contact you when I decide."

"I hope you can decide as soon as possible, because I also have something to do, and my phone is going to stay, so I'll go first."

"Okay, goodbye."

On April 15, 2018, he returned to the office and began to sort out all the clues of the first phase:

1. Information on the missing person: Le Zhiqiang, male, sophomore, studying at S University, disappeared on the evening of March 7. The life of the missing person is relatively monotonous, and the interpersonal relationship at school is very good, which excludes the possibility of classmates and teachers committing crimes.

2. Disappeared a month ago, the client reported the case a week after the incident, and the police stopped the investigation after finding no clues.

3. The client's known trajectory on that day was: going out from home and taking a car to the last place of appearance: No. 775 Tianlin Road, Donghua City, and the subsequent action route is unknown.

4. All personal documents of the missing person are in the house and are clearly displayed.

5. The missing person saw a middle-aged man, bald, wearing a white coat at noon on the Friday before the disappearance, and after seeing this person again, he looked in a trance, as if he had something on his mind, and at the same time found that the cloud information of the missing person's mobile phone had been modified, but he did not know who had modified it.

6. On the day of the incident, the missing person did not return to school in the afternoon as usual, but left the house in the evening and told his classmates that he did not want to play that day.

7. The last place where the missing person was found was No. 775 Tianlin Road, Donghua City, and it was verified from the residents, but a body was found there, which was the first missing person.

8. The place where the missing person was last seen had been murdered three years ago, and no further progress had been made so far.

9. It is not known for the time being what the missing person has to do with the family of four there.

10. The place where the missing person was last seen was deliberately arranged, and there were not obvious palm prints left in the study, and all the doors and windows of the house were closed, but the door on the first floor was hidden.

11. This place makes strange noises every Sunday night, but I don't know what is going on, and the cause has not been found out so far.

12. A week after the disappearance of the missing person, a mysterious letter appeared in the home, but so far it has not been found out who left it.

13. The client's husband can unravel the information stated in the mysterious letter and start getting busy after receiving the message.

14. Each missing person came here before his disappearance, and it is not known for the time being that all the missing persons are connected to each other.

15. After you enter the house, you can call the police very accurately, this person should have been following him, but when he set off, he looked around and did not find that someone was following him.

Attached Mystery Letter:

9894494227449267467468484

645465824484524

These two strings of numbers should be what the password is, but the order of the password is only two to nine, but the numbers from 2 to 9 can represent a lot of things, which is inevitably a bit of a headache.

"Ding Dong"

"Little baby Liyao, what have you been doing lately, you haven't contacted me for a long time, you know?"

"Get out, a man is so sassy, and you call me a big man and a little baby, you are not disgusting."

Wait a minute, the number 2 to 9, the client said that her husband reacted immediately after seeing it, so it should be a daily contact.

The input method of the mobile phone 9 square grid is exactly 1 to 9,And 1 has no effect,Will it be the password of the nine square grid?,Try it first,Maybe it's really what you guessed。

9894494227449267467468484: The test has been withdrawn

Organization? What organization? What is the test piece? Could it be that Le Zhiqiang is an experimental product? If he was, why didn't his mother know? Does this organization have anything to do with the missing person's father, the client's husband?

645465824484524: You come back as soon as possible

Go back, where do you go? Does the client's husband's busyness have anything to do with it?

If so, who was the person the missing person had seen before he disappeared?

It seems that if you want to know more information, then you need to check the client's husband, he should know more information than the client, but I don't know if he will cooperate.

"Let's go out for dinner tonight?"

"Send me the time address."

"When you come to my house in the old time, I will do it for you."

"Okay, I'll come over now."

Put down the notebook in his hand, stand up and prepare to leave, it's already more than half past three, plus it's still a working day, so it's better to go to him early, and maybe he can help himself find some clues.

At half past four in the afternoon, when I came to a friend's house, a man was preparing things in the kitchen, and it seemed that there were quite a few things.

Seeing Peng Liyao coming, he nodded to him with a smile and motioned for him to do it himself, "Liyao, you are here, sit casually, there is beer prepared for you in the refrigerator, cold, you have to drink it yourself." ”

"Yes, I know." Peng Liyao nodded calmly, his mind was now full of things about the task.

"Got a task?" The man asked Peng Liyao with a gentle smile on his face, and watched Peng Liyao open the beer in his hand and drink it.

After taking a sip of beer, the cold liquid slid down the esophagus and into his stomach, which made Peng Liyao's uneasy mood lighten, Peng Liyao put the beer on the table and replied, "Got it." ”

"Received it, it's more troublesome." Then he didn't finish speaking, Peng Liyao continued, there are still a lot of mysteries now, and there is always a feeling of panic recently.

The man brought out the dishes he had sat down on and put them on the dining table, fortunately, he lived alone, and the place was not big, otherwise there was no way to talk to Peng Liyao while chatting, "What task, maybe I can help you." ”

"Haven't some people been missing lately? There was a guy who asked me to find someone who was missing. Peng Liyao said helplessly, the case of missing persons is the most troublesome, but since he is next now, he must be done well.

"Which? There have been a lot of people who have disappeared recently, which one are you looking for? The man was stunned for a moment and asked Peng Liyao, there were more than a dozen missing people he knew of alone.

"Le Zhiqiang, do you have any impressions?" Peng Liyao looked at the man and said, Zhao Tianlong, a friend who has known him for a long time, is also one of the few people he can trust.

"I seem to have heard his name, let me help you find his information?" Zhao Tianlong looked at Peng Liyao and said, while continuing to fry the vegetables, it sounded like a fun thing.

"Yes, thank you." Peng Liyao nodded and said, picked up the beer glass he put down and continued to drink, with Zhao Tianlong's help, he should be able to get more information related to this case.

"Alright, wait a little longer and then we can eat." Zhao Tianlong looked at Peng Liyao and laughed, while speeding up the movements of his hands, hoping that the meal could be prepared as soon as possible.

Returning home from dinner at eight o'clock in the evening, Peng Liyao threw his mobile phone on the bed casually, and was about to go in to take a bath.

Rubbing his hair and coming out of the bathroom, Peng Liyao heard his mobile phone ringing, walked to the bed and connected the phone, and the phone was a man's voice, "Peng Liyao?" I am the policeman I met with you during the day today, and we agreed to your request. ”

"Okay, I'll let you know if there's a new lead, but if you have a clue, please let me know as well." Peng Liyao's face was slightly pursed, and the corners of his mouth drew a beautiful arc, it seems that he has a partner, and now, at least he has a guarantee.

"No problem, nice to work with." The man's voice on the phone was full of laughter, and he seemed satisfied now.