All 10 suspects, who have been identified, were taken to the police station to record statements on the grounds that they had been present at the scene of the crime on the day the victim disappeared.

At the same time, so many people were called to record confessions, and it was clear that it was a routine questioning, and no one doubted it.

Zhang Xingjie entered the interrogation room and sat down, He Jiahui handed over a glass of water, and said with a smile: "Mr. Zhang, have you been thirsty for a long time?" We have poor conditions here, only plain water, let's drink two sips to quench our thirst. ”

"Thank you, Sir." Zhang Xingjie took the paper cup and took a sip.

He Jiahui gave Ma Jun a look, Ma Jun understood, and asked: "Mr. Zhang, we watched the video and found that you had been to the building where the crime was committed at 3:20 last Saturday afternoon, what were you doing there?" ”

Zhang Xingjie thought for a while and replied: "I studied computers, a friend of mine, his laptop always freezes and crashes inexplicably, as if he has been infected with a virus, so he asked me to go over and help take a look."

We met at about 3:30 p.m. on Saturday afternoon in a seminar room on the fifth floor of that building, and I arrived 10 minutes early, and after helping him with his computer problem, he invited me to a drink, and we talked for a while, and I left. ”

"How long have you been talking, and what time did you leave?" Ma Jun then asked.

"I think we've been talking for a long time. This friend of mine is an anime fan, and I usually like to watch some anime, so we've been talking about anime for a long time. ”

Zhang Xingjie paused, and then said; "When I leave, it should be half past four! The elevator surveillance must have recorded me as I left. ”

Zhang Xingjie's confession is consistent with the surveillance video in the elevator, which shows that he left at half past four.

Ma Jun continued to ask, "Who is that friend of yours?" ”

"His name is Yang Lixin, and he is studying law." Zhang Xingjie replied.

Ma Jun looked at the information in his hand, Yang Lixin was also among the suspects who recorded the confession this time, so he then asked: "Are you familiar with this classmate Yang Lixin?" ”

"Actually, it's not very familiar, it's just an ordinary friend. If you meet, you'll say hello, and if you happen to meet together, you'll have a chat. Zhang Xingjie said.

"Mr. Zhang is a warm-hearted person, ordinary friends ask for help, and they are willing to run in person."

Ma Jun smiled slightly, and then said: "The laptop can be carried with me, if it is replaced by me and I want to ask you for help, I will definitely take the notebook and come to the door to find you." ”

Ma Jun has found suspicions from Zhang Xingjie's confession.

Laptops are not refrigerators, air conditioners such as large items, you ask someone to help repair the laptop, then you must have to take the computer to the door, how can you find someone to help repair it, but also people take the initiative to find the reason?

What's more, the two of them are just ordinary friends.

The two have a good relationship, so it makes sense to take the initiative to come to the door, if it is to lick the dog, it is normal to take the initiative to repair the computer. It's just a nodding friend of the ordinary friend, which is a little weird.

Ma Jun has already begun to speculate that going to repair the computer is just an excuse designed by Zhang Xingjie for his appearance at the scene of the crime, in order to cover up that he and the deceased also met in the same place.

Zhang Xingjie explained; "Yang Lixin, who asked me to study computer science, has very good grades, and he is among the best in the entire law school, and I heard that the tutor of the law school also admires him, and he will definitely be able to enter a famous law firm in the future, and there is a high probability that he will become a big law firm.

I think it would not be a bad thing to have a barrister friend, and maybe there will be times when you need help in the future. So I also deliberately wanted to make friends with Yang Lixin. ”

Zhang Xingjie said it more tactfully, in layman's terms, people want to be barristers in the future, and they want to tie up in advance.

Ma Jun nodded silently, the confession given by Zhang Xingjie sounded reasonable, and with the evidence in the hands of the police, it could not be proved that he was the murderer.

"Mr. Zhang, thank you for your cooperation, if necessary, we will have to ask you to assist in the investigation." Ma Jun said.

"No problem, I'm willing to cooperate with the police. Two sirs, then I'll go. Zhang Xingjie stood up, turned around and left the room.

He Jiahui opened his mouth and said; "Zhang Xingjie mentioned Yang Lixin from the law department, and now he is waiting outside to record a confession, let's call him over to see if it can match Zhang Xingjie's confession."

"Okay." Ma Jun nodded, and then asked his subordinates to bring Yang Lixin in.

"Mr. Yang, according to the surveillance video, you went to the building where the crime was located at half past one in the afternoon last Saturday, what are you going to do?" Ma Jun asked.

"It seems that my laptop has a virus, so I asked a friend to take a look at it for me, and we made an appointment to meet on the fifth floor." Yang Lixin replied.

"Who's your friend?" Ma Jun then asked.

"His name is Zhang Xingjie, he studied computers, didn't you ask him just now?" Yang Lixin said.

"According to Mr. Zhang Xingjie, the time you agreed on is half past three in the afternoon, why did you arrive at half past one?" Ma Jun asked again.

Yang Lixin immediately replied: "Our coursework in law is relatively heavy, in addition to a large number of legal stripes to memorize, there are many cases to analyze, so for me, there is no day off, as long as I have time, I will study."

After lunch on Saturday, I went directly to the agreed place, watched a few case studies, and waited for Zhang Xingjie to come over. I didn't mean to arrive early, I just didn't want to waste time. ”

"What about after you fix your computer? What did you do? Ma Jun continued to ask.

"I went to the vending machine, bought a drink, and then chatted with Zhang Xingjie for a while." Yang Lixin replied.

"What did you talk about?" Ma Jun asked again.

"Talked about Naruto, this is a very popular Japanese anime, I don't know if you have seen it, Sir?" Yang Lixin asked rhetorically.

"I'm usually busy with work, so I don't have time to watch anime." Ma Jun replied.

"Oh, that's a pity, if you have time, Sir can take a look, it's wonderful!" Yang Lixin incarnated as an animation salesman.

Ma Jun didn't want to talk about Naruto, so he then asked, "What time did Zhang Xingjie leave?" ”

Yang Lixin thought for a while and said, "It seems to be four o'clock!" ”

"Are you sure it's four o'clock?" Ma Jun asked immediately.

Yang Lixin hesitated for a few seconds, and then said: "I'm not very sure, I didn't look at my watch at the time." But I don't think we talked for a long time, probably less than twenty minutes, and when he left, it would be four o'clock at most. ”

"And then, when did you leave?" Ma Jun asked again.

"After Zhang Xingjie left, I continued to look at the case study, maybe I was too engaged, I didn't notice the time, until I was hungry, I realized that it was already six o'clock in the afternoon, and then I left quickly and took the bus home." Yang Lixin replied.

Yang Lixin's confession is consistent with the surveillance video, and he did not enter the elevator from the fifth floor until 6 o'clock in the afternoon and then left.

After ending the questioning of Yang Lixin, He Jiahui and Ma Jun discussed the case again.

Zhang Xingjie said that he left at half past four, and the same is true of the surveillance in the elevator. But Yang Lixin said that Zhang Xingjie left at four o'clock. There is a gap of half an hour between the confessions of the two people, could this be the time when Zhang Xingjie committed the crime? Ma Jun asked.

"Very likely!" He Jiahui nodded: "But Yang Lixin also said that when Zhang Xingjie left, he didn't look at his watch, and he couldn't determine the specific time at that time." Zhang Xingjie can completely say that Yang Lixin remembered wrongly. ”

"Yes, the evidence we have at present can only show that Zhang Xingjie is suspicious, but we have no evidence." Ma Jun frowned.

"If you don't have evidence, look for evidence!" He Jiahui continued: "Let's start with Zhang Xingjie's interpersonal relationship, if he is a murderer, he killed three people in a row, I don't believe that there is no trace left!" ”

……

The next day, the suspect wearing the cap and the two suspects wearing masks were also identified, and the three were called in to record their statements.

Ma Jun took the information bag containing the confession, came to He Jiahui's office, and asked, "The confessions of the fourteen suspects have all been recorded. Would you like to take another look? ”

"I'll watch it later, and I'll send it back to you after I'm done." He Jiahui then asked: "Tell me the results first." ”

"Through the transcript, six more people can be excluded for the time being." Ma Jun took out the confessions of the three people, and continued: "These three people have made an appointment to meet on the sixth floor at half past two, and two of them have come together, and they can testify to each other."

Although the other person came alone, the three of them never separated after meeting at half past two, and they also left together when they left. The time of the deceased's arrival was 2:50, so their time diverged from the deceased's. ”

Ma Jun took out three more confessions: "These two people came and walked together, and they can prove each other." So I'm going to rule them out for the time being.

As for the last one, it was the one who wore a cap, and the reason why he wore a cap was because he had a car accident before and had more than a dozen stitches on his head, so he wore a cap to cover it up.

And when he was in the car accident, he was injured in his arm and leg, one hand was broken and he couldn't hold anything, and one leg ligament was strained, although he could walk, it was difficult to go up the stairs.

With his physical condition, it is unlikely that the deceased will be moved from the eighth floor to the rooftop, so I have ruled out his suspicions. ”

"Fourteen minus six, and there are eight suspects left! The one with the most suspicion should still be Zhang Xingjie, right? He Jiahui asked.

"That's right, I've already asked Uncle Hua to investigate his interpersonal relationships." Ma Jun replied.

At this time, Yang Zai hurriedly walked over.

"Ma sir, good news, the technical department just called, the mobile phone of the deceased Liu Baorui, whom they have been monitoring, has just found that the mobile phone is turned on, and the location is in Da Kok Tsui!" Yang Zai said.

At the scene of the crime, only the deceased's wallet and keys were found, but not the mobile phone, which was obviously taken by the murderer, and the technical department of the police had been tracking the deceased's mobile phone.

In recent years, mobile phones have positioning functions, and many brands of mobile phones have settings to track the location, as long as the mobile phone is turned on, the police can easily lock the location of the hand through technical means.

Now that the deceased's mobile phone has been located, it is obviously a major breakthrough in the case.

Ma Jun immediately said: "Ask the technical department for detailed positioning, and we will go to Tai Kok Tsui immediately!" ”

……

The final location sent by the technical department was a store selling second-hand electronics in Tai Kok Tsui.

Looking at the second-hand electronics store in front of him, Ma Jun snorted coldly.

"Ma sir, do you know this shop?" He Jiahui asked.

"Old acquaintance! The owner of this shop not only collects stolen goods, but also sells parallel goods! I've caught him many times. Ma Jun said, striding in.

"I've beaten him so many times!" He Jiahui said secretly in his heart, and then followed.

The owner, a scruffy-looking middle-aged man with curly hair and brown dye, was lying in a chair, playing with his phone and blowing a fan.

Hearing someone coming in, the shopkeeper said casually, "Whatever you want, feel free to see!" ”

Ma Jun stepped forward directly, and did not speak, but tapped the counter with his fingers.

"Wait a minute, let me finish this game." The shopkeeper said impatiently.

Ma Jun was unceremonious, and directly reached out and snatched the shopkeeper's mobile phone.

"What are you doing ......?"

Before the word "what" was spoken, the shopkeeper had already seen that the person who took his mobile phone was Ma Jun.

"Ma sir!" The shopkeeper was startled, jumped up directly from the chair, and then said with a smile: "Ma sir, what kind of wind blew you here!" ”

"Parallel goods Wu, are you collecting thieves again?" Ma Jun asked directly.

"How dare you, Sir Ma, I have already changed my ways." The shopkeeper spoke.

Ma Jun didn't speak, just stared at the shopkeeper coldly.

The shopkeeper put on an innocent expression and said, "Sir Ma, don't tease me, I know that it is illegal to accept stolen goods, and I haven't accepted stolen goods for a long time." ”

Ma Jun still didn't speak, just stared at him coldly.

The more Ma Jun didn't speak, the more nervous the shopkeeper became, and finally, the shopkeeper couldn't bear the pressure brought by Ma Jun, and he said helplessly: "I just received an old mobile phone, and it was picked up by someone, not a thief!" ”

Ma Jun didn't talk nonsense, he stretched out his hand directly, and the shopkeeper immediately rummaged through the boxes and cabinets, and obediently handed over the old mobile phone to Ma Jun's hands.

Ma Jun opened his phone and clicked on the user information.

“Borry Lau。 It is Liu Baorui's English name, and this mobile phone is Liu Baorui's! Ma Jun said.

Liu, a native of Xiangjiang, is spelled "Lau" in English according to the Cantonese pronunciation, not Liu. "Borry" is the English name of the deceased Liu Baorui.

"Parallel Wu, where did this mobile phone come from?" Ma Jun then asked.

"It was sold to me by Grandma Zhou, who picked up the waste, and she said that the phone was picked up when she was picking up the waste. As for whether she is telling the truth or not, I don't know. ”

The shopkeeper paused, then continued; "This mobile phone is last year's model, it is relatively new, I opened it and saw it, there is no damage inside, and I am also worried that this is a thief.

However, Grandma Zhou didn't know this mobile phone, and she didn't know how much it could be sold for, so I was also greedy, so I gave her 800 yuan and sent her away! ”

"You didn't lie to me, did you?" Ma Jun then asked.

"Absolutely not, Ma Sir, how dare I lie to you! If you don't believe it, you can go to Zhou Po and ask! The shopkeeper quickly replied.

"Forgive me and don't dare to lie to me!" Ma Jun turned his head to his subordinates and said; "Go and ask the surrounding neighbors, where can I find this Grandma Zhou!"

……

The officers of the Serious Crime Unit questioned the nearby uniformed patrol officers and soon found Grandma Zhou, who was picking up scrap.

The uniformed patrol officer in charge of this area is familiar with the surrounding neighborhoods, and he also knows Grandma Zhou, with him as the middleman, and the questioning of the serious crime team is much smoother.

"Grandma Zhou, this is Ma Sir from the Serious Crime Team, he has a few questions for you." The uniformed patrol officer spoke.

"Sir, what do you want to ask! Hurry up, don't delay me picking up waste! Grandma Zhou said impatiently.

Ma Jun directly took out the mobile phone and asked, "Grandma Zhou, did you sell this mobile phone to parallel Wu?" ”

"What kind of mobile phone, I didn't sell it, it's none of my business! I'm going to pick up scrap. Grandma Zhou showed a vigilant expression, pushing the car that picked up waste and planned to leave.

Obviously, Grandma Zhou's performance is a thief.

In Xiangjiang, if you find valuable property belonging to others, if you do not hand over the property to the police, but take it for yourself, it is a crime of theft if you do not report it.

Grandma Zhou picked up the mobile phone and then sold it privately, apparently it was already a loss to report, so when the police asked her about the mobile phone, she instinctively wanted to escape.

Ma Jun also guessed Grandma Zhou's thoughts, and he immediately said: "Grandma Zhou, I know that you picked up this mobile phone, as long as you tell me where you picked it up." You can keep the money from selling your phone, and we won't go back. ”

Beside him, the uniformed patrol officer also spoke; "Grandma Zhou, Sir Ma is a senior inspector and the commander of the police force, he won't lie to you."

Grandma Zhou hesitated for a few seconds, either in fear or in belief, but she finally chose to confess honestly.

I only heard Grandma Zhou speak: "This mobile phone was picked up by me from the garbage heap, I am so old, I don't know how to use this kind of thing, so I took it and sold it to the second-hand mobile phone, and sold it for 500 yuan." ”

"Five hundred? Isn't it eight hundred? Ma Jun asked directly.

Grandma Zhou was stunned for a moment, and then said: "I'm old, and my memory is not good, maybe it's eight hundred yuan!" ”

It's obviously impossible to just sell a mobile phone, but you can't remember how much it sold.

Grandma Zhou said that the mobile phone was only sold for 500 yuan, probably because she was worried that the police would take the money away, and as long as she handed over 500 yuan to the police, she would have 300 yuan left.

However, her careful thinking was instantly recognized by Ma Jun. Ma Jun didn't dwell on these details, and he then asked, "Where did you pick up your phone in the garbage heap?" ”

"It's the garbage heap of Changwang Building." Grandma Zhou replied.

"Grandma Zhou, can you take us over?" Ma Jun asked again.

"I still have to pick up waste, how can I have time, Changwang Building is not far away, you can go by yourself." Grandma Zhou refused.

At this time, He Jiahui stepped forward and spoke; "Grandma Zhou, you take us over and find the trash can where we picked up the mobile phone, how about I invite you to eat Shen Ji's roast goose legs?"

"Really?" Hearing that she was eating roast goose legs, Grandma Zhou's eyes lit up.

"Of course it's true, I'll go to Shen Ji now and buy you roast goose legs." He Jiahui then said to Ma Jun: "Ma sir, let Grandma Zhou take you over first, I'll go buy roast goose legs, and we'll meet in Changwang Building!" ”

Between Tai Kok Tsui and Sham Shui Po, there is a street, Ho Ka Fai used to be a patrol officer in Sham Shui Po, so he is also familiar with Tai Kok Tsui, he knows that not far from here, there is a Shen Kee roast goose, the taste is very good.

He Jiahui bought roast goose legs and came to Changwang Building, and Grandma Zhou had already taken Ma Jun and them to a place where garbage was piled up.

There were two garbage bins, which were already stuffed and had not yet had time to clean up, and there were several black garbage piles around it, which should have been thrown by nearby residents.

He Jiahui handed the roast goose leg to Grandma Zhou, and Grandma Zhou left satisfied.

The uniformed patrol officer introduced: "Changwang Building is a commercial and residential building, with shops on the lower floors and residential buildings above. This garbage heap is where the owners of Changwang Building pile up their garbage. ”

He Jiahui raised his head, looked at the Changwang Building in front of him, and then said: "I remember, the residence filled in Zhang Xingjie's information is the Changwang Building, right?" ”

"That's right, it's Changwang Building!" Ma Jun nodded: "It is definitely not a coincidence that the mobile phone of the deceased Liu Baorui appeared in the garbage heap where Zhang Xingjie lived. It seems that we asked Zhang Xingjie to record the confession yesterday, and it has had an effect.

After Zhang Xingjie killed Liu Baorui, he was worried about leaving clues for the police, so he took away his mobile phone. After that, we asked Zhang Xingjie to record the confession, and he was probably afraid that we would find him, so he threw the phone into the garbage heap, intending to destroy the evidence.

But I didn't expect this mobile phone to be picked up by Grandma Zhou, who picked up scraps, and sold it to parallel Wu, and as soon as the parallel Wu turned on, we locked the location of the mobile phone! ”

"But what you said can still only be regarded as speculation!" He Jiahui sighed lightly and continued; "Even if the deceased's mobile phone is found in the garbage heap where Zhang Xingjie lives, it cannot be proved that Zhang Xingjie lost it, and we still have no conclusive evidence to arrest him!"

Ma Jun smiled confidently and said; "As long as you can lock down the murderer, it's much easier! We'll send someone to watch him 24 hours a day, and he'll definitely show his feet! ”

If the suspect is locked but there is not enough evidence, then 24-hour tracking of the suspect is the most direct way to solve the case.

……

Early in the morning, He Jiahui got up from the bed and was brushing his teeth and washing his face, but the mobile phone rang suddenly.

He Jiahui looked at the dot show that the call was from Ma Jun, and a bad feeling suddenly rose from He Jiahui's heart.

He Jiahui picked up the phone and asked directly: "Ma sir, calling so early, is there another case?" ”

"Just received a report, Chinese University is dead again!" Ma Jun's voice was a little solemn.

"It can't be drowned, right?" He Jiahui immediately asked.

"You guessed it, the crime took place in a pond next to the gymnasium, so nine times out of ten, the deceased was drowned."

Ma Jun continued: "You said before that the murderer kills people according to the five elements, fire gives birth to earth, earth gives birth to gold, gold gives birth to water, fire, earth, and gold are all dead, and now it's the turn of water!" ”

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(End of chapter)