I am a super cop

Chapter 1627 Fingerprint Logic
Inside the police car, the angry bodyguard of the man in black wanted to smash the glass of the police car with a punch.

But the moment the sandbag-sized fist was about to touch the car window, the bodyguard of the man in black stopped his movements in an instant, and subconsciously withdrew his fist.
He was angry, but didn't want to cause trouble.

It's just that the employer died, but I was not around. Although the employer intentionally left me alone, my reputation in the industry will continue to decline in the future.

The bodyguard of the man in black frowned and asked Gu Chen, "Who did it?"

"We are also investigating." Gu Chen said.

"So you are looking for me, what do you want to know?" the bodyguard of the man in black asked again.

Gu Chen paused for a few seconds, looked up at the bodyguard of the man in black sitting in the back row in the rearview mirror of the car, and asked him:
"Tell me, Mr. Zhang Xuchang went to Guiyuantian Residential Village yesterday. Who was he meeting?"

"Zhao Liwen." The bodyguard of the man in black did not hesitate, and directly informed Gu Chen of his employer Zhang Xuchang's meeting partner.

Gu Chen asked again: "Aside from Zhao Liwen, is there anyone else?"

The bodyguard of the man in black in the rearview mirror shook his head: "The old man only told me that he is going to see Zhao Liwen, but I don't know if he will see anyone else."

"So you took his two granddaughters with you yesterday, and the old man talked to Zhao Liwen alone, that's what he meant, right?" Lu Weiwei, who was sitting in the co-pilot, asked.

The bodyguard of the man in black nodded without hesitation and admitted:
"I once thought about staying with the old man, but the old man didn't agree, and the old man insisted on bringing his two granddaughters by his side and letting me take care of the two children."

"I have no choice but to listen to his orders, thinking that there shouldn't be any emergencies in a scenic spot like Guiyuan Tianju."

"And the old man went to find Zhao Liwen, I think it was because of the resale to Yuantian, so he didn't get involved."

"Why do you bring two children by your side?" Gu Chen glanced back and asked him seriously: "With two little girls by his side, if Zhang Xuchang quarreled with someone, wouldn't it be bad for the two little girls? impression?"

"I don't know." The bodyguard of the man in black shook his head, feeling a little helpless: "Perhaps it has something to do with the old man's habits."

"The old man loves these two granddaughters very much. Now he seldom participates in business matters. He spends all day with his granddaughters."

"So no matter where he goes, he will take two little girls with him, which is also reasonable."

"Okay." Gu Chen recorded all this and continued to ask him: "I heard that Zhang Xuchang started hiring bodyguards because his head was blown off at the entrance of the KTV back then. Is there such a thing?"

"Yes." The bodyguard of the man in black nodded silently, and also voluntarily admitted: "The old man did have conflicts with his colleagues because of the real estate project back then."

"That person is also a ruthless person. He directly hired some young people from society to beat him up after the old man came out of KTV."

"The old man stayed in the hospital for half a month. From then on, through a friend's introduction, he came to the Sanda boxing gym to find me and offered me a high salary to be his driver and bodyguard."

"So you practice fighting?" Hearing what the bodyguard of the man in black said, Lu Weiwei also frowned.

I feel that this sturdy body, as expected from the crowd, can be seen at a glance, it must be a practicing family.

The bodyguard of the man in black nodded silently: "In the past few years, with the high salary given by the Zhang family, I can be said to be conscientious."

"There were also some troublemakers during the period, but I settled them all, so the old man trusts me very much, but there is only one thing I don't quite understand."

"What is it?" Gu Chen asked him.

The bodyguard of the man in black shook his head helplessly: "The old man seems to have his own secrets, and he doesn't like to let people know, so every time he goes to Hongyuanli Community to talk about things with people, he intends to let people not get involved."

"Every time I was asked to send him to the community, I left quickly and didn't let me pick him up until he called."

"Then why don't you just park your car nearby?" Lu Weiwei said.

"No." The bodyguard of the man in black shook his head, and said truthfully: "The old man has an order, I can't stay nearby, probably because I'm afraid that the person I'm talking to will be alert."

"Anyway, the old man doesn't share everything with me. I also understand that rich people always have something on their minds, or the little secrets in their hearts that they don't want to be known."

"Of course, I only use money to do things and work for others. I can do whatever the employer asks me to do."

"I just didn't expect this time, the old man..."

At the end of the speech, the bodyguard of the man in black choked up, and seemed to feel sorry for the employer who had served for many years.

Gu Chen hesitated for a moment, recalling the scene of Zhang Xuchang arguing with someone in the bamboo forest last night, he seemed very emotional.

And he died at a friend's house at noon the next day, presumably because the matter of last night was not negotiated, and today he was called to the Hongyuanli community to discuss again.

Thinking of this, Gu Chen suddenly hesitated.

Seeing that Gu Chen stopped asking questions, the bodyguard of the man in black sniffed and asked Gu Chen, "Do you have anything else to ask?"

"What's your name?" Gu Chen said.

"Xu Bo," said the bodyguard of the man in black.

"Leave your contact information and ID number. If necessary, we will contact you at any time." After Gu Chen finished speaking, he handed over the notebook directly.

Xu Bo didn't hesitate, and directly signed all the information.

After finishing the operation, Xu Bo asked Gu Chen: "Then can I go now?"

"Yes." Gu Chen nodded in tacit agreement.

Xu Bo didn't say too much. After opening the door, he quickly got out of the car and walked straight to the fire exit.

In the car, Lu Weiwei stared blankly at Gu Chen, and said with some doubts: "How much of what Xu Bo said is true?"

"Before the investigation is clear, half and half." Gu Chen took a deep breath, feeling that in the current situation, anyone who is close to Zhang Xuchang is suspicious.

Thinking that Zhang Xuchang's body should be sent to the technical department of the Municipal Bureau, Gu Chen suddenly wanted to go back to the scene of the crime and investigate the specific situation.

After all, it is very important to find Xu Bo, but the search of the crime scene is even more important.

Thinking of this, Gu Chen explained the situation to Lu Weiwei, and the two continued to drive back to Hongyuanli Community.

At this moment, a police car was parked downstairs in the Hongyuanli community.

A small number of residents gathered together to discuss in low voices.

And the two guards who played chess didn't dare to slack off at this time, but they would ask any strangers who entered the community, it seemed that the police had an assignment.

When he saw Gu Chen and Lu Weiwei driving over, the doorman quickly lifted the railing manually and let Gu Chen in.

Gu Chen drove to the door and asked curiously, "Has the community not called yet?"

"No, but the people from the power company passed by just now and said that it is almost ready, and they may call soon." The doorman also said with a smile.

Gu Chen nodded silently, and parked his police car beside the other police car.

"That's Ding Liang and Huang Zunlong's car." Gu Chen saw the license plate number, so after getting out of the car, he took Lu Weiwei and ran upstairs.

At this moment, the entrance of the crime scene has been blocked by a cordon.

When Gu Chen pushed open the half-covered door, Ding Liang and Huang Zunlong were discussing matters in the living room.

Everyone was wearing protective equipment. The moment he saw Gu Chen, Ding Liang also heaved a sigh of relief and said, "You're still here after all."

"How's it going?" Gu Chen walked in and asked after putting on the headgear, foot gloves and gloves.

Ding Liang complained, "There is a power outage in this community, and the room is quite hot. Look at our sweat, we dare not drip it on the floor."

"Then it's hard work for you." Lu Weiwei patted the shoulders of several people, and continued to ask: "By the way, did you find anything?"

"Not yet." While speaking, Police Officer Wang and Yuan Shasha walked out of the room.

Gu Chen took a look and said with a smile, "So Brother Wang and Xiao Yuan are still there?"

"Well, the body and the items that need to be tested have been handed over to He Junchao, and we will stay and continue to check." Officer Wang said.

Gu Chen glanced at the ground. The direction where Zhang Xuchang fell to the ground just now has been drawn with white lines.

Gu Chen walked back and forth and asked Xiao Yuan: "When Gao Chuanfeng came over, did you say anything to the drink that needs to be tested?"

"It was said that the drink was poisonous, because he did a quick test at the scene and said that the drink contained potassium cyanide, saying that the deceased may have died of potassium cyanide poisoning."

"Sure enough." Gu Chen nodded silently, and said involuntarily, "Go and think about it with me."

"Besides that, did he say anything else?"

Yuan Shasha shook her head: "I didn't say anything else, oh yes, the time of death he judged is basically the same as Senior Brother Gu's judgment. The time of death of the deceased was between 1:2 and [-]:[-] noon."

"Okay, I will go to the Technical Section of the Municipal Bureau later and ask Gao Chuanfeng about the situation."

"drop!"

Just as Gu Chen finished speaking, a switch suddenly sounded from the corner of the wall.

The air conditioner suddenly turned on automatically.

"Is there a call?" Lu Weiwei looked around and turned on the light switch beside her.

All of a sudden, the whole room brightened up.

Huang Zunlong breathed a sigh of relief and said, "Finally the call is coming. If I don't call again, I will die of heat."

"Yes." Ding Liang also wiped the sweat from his forehead, and couldn't help complaining: "It's a good thing there are people in the room, otherwise, the owner is not at home, and the air conditioner suddenly turns on, how much electricity will it cost?"

"If the air conditioner is not turned off after a power outage, won't it automatically turn on when the power comes in? Don't you need to use the remote control again to turn it on?" Lu Weiwei is also a little curious, after all, the air conditioner in the office is operated in this way. "

But Police Officer Wang still explained: "The air conditioner suddenly lost power during operation, and the air outlet of the air conditioner will automatically close after the power comes in. You can choose to use the remote control to turn it on."

"However, if the air conditioner turns on automatically after a power outage, you need to check whether there is a problem with the air conditioner. If there is a TV opposite the air conditioner, the infrared rays released by the TV may also turn on the air conditioner."

"However, let me say that it is better to unplug the power cord after the power failure, so as not to waste electricity by automatically turning on the air conditioner."

"There is another situation." After receiving Officer Wang's words, Gu Chen also thoughtfully said: "There are some air conditioners with incoming call memory, which can automatically turn on the air conditioner after a call comes in."

"If there is a sudden power outage and then a power call, it is very likely to cause damage to the non-inverter air conditioner. Therefore, it is best to turn off the main switch at home after the power outage to prevent the electrical pressure from increasing and affecting the service life."

Looking at the air conditioner turned on in front of him, Gu Chen, who was a little cool, also fell into thought:

"If there is a power outage, the air conditioner will automatically shut down if it is not turned off, but when the power comes on again, the air conditioner will continue to start according to the previous mode."

"After all, the current air conditioners basically have a power-off memory function, so although the air conditioner stops running when the power goes out, it will still run according to the previous mode when the power is turned on again."

"That's right." Police Officer Wang also agreed, "So when such a sudden power failure occurs during the use of the air conditioner, it is best to unplug the power plug of the air conditioner after the power failure, so as not to The air conditioner turns on automatically, causing unnecessary economic losses."

"After all, air conditioning costs electricity, unless there are mines at home, I don't care."

"Xiao Yuan, close the window quickly, don't let the hot air in, the wind blowing in here is all hot air."

Seeing that the balcony window was still open, Lu Weiwei immediately reminded Yuan Shasha beside her.

Yuan Shasha groaned, and quickly turned to close the window.

But at this moment, Gu Chen suddenly realized something, and just as Yuan Shasha was about to close the window, he stopped in time: "Xiao Yuan, don't move, don't close the window."

"Ah?" Yuan Shasha stared blankly, looked at Gu Chen at a loss, and asked, "If you don't close the windows, won't all the hot air blow in? There's no point in turning on the air conditioner."

Gu Chen didn't answer right away, but walked quickly to the balcony.

At this moment, Gu Chen realized that many windows on the enclosed balcony were open.

Gu Chen suddenly thought of something, and the corner of his mouth raised an upward arc.

Yuan Shasha didn't quite understand, so she asked Gu Chen softly, "Brother Gu, what are you thinking?"

"I was thinking, why do you have to open the windows to turn on the air conditioner?" Turning to look at everyone, Gu Chen said again: "Then there is only one possibility, Zhang Xuchang died after the power outage, or in other words, after the power outage, the murderer was still in the house .”

"Because of the power outage, the air conditioner had no cold air. Under normal circumstances, the windows would not be opened immediately, because there was still air-conditioning in the room at that time, but this time would not last long."

"So when the air-conditioning is exhausted, if you don't open the windows, the temperature in the room will be very high and it will be stuffy."

"If I were Zhang Xuchang, maybe I would open the windows immediately to keep the air circulating in the room, at least it would be more comfortable."

"So, in one case, Zhang Xuchang took the initiative to open the window, and in the other case, the murderer opened the window after poisoning Zhang Xuchang?" Lu Weiwei asked.

Gu Chen nodded silently: "That's right, so who opened the window is very important, and there is also the specific time of the power outage."

"I've already asked, the power outage time is 1:30." Yuan Shasha heard the words and hurriedly told Gu Chen what she had found out.

“1点30分？而死亡时间大概在1点到2点之间，那么可以说明，张旭昌的死亡时间，可以精确到中午1点30分到2点之间。”

"And if Zhang Xuchang needs to open the window, he will definitely leave fingerprints on the window handle. The same is true if he is a murderer."

Officer Wang frowned when he heard this, and hurriedly said, "Then look at the fingerprints on the window handle."

"Clear and obvious." Gu Chen took a closer look and found that the fingerprints on the window handle were still quite obvious.

Lu Weiwei immediately grinned and said, "It would be best if we could get the murderer's fingerprints."

"But Zang Fusheng, the head of the household, once said that he likes to be clean. Before he went on a trip, he did some sanitation, including cleaning the windows." Yuan Shasha remembered what Zang Fusheng left when he was taken away, and immediately told Gu Chen .

Gu Chen also noticed that there was actually only one fingerprint on the handle of the window, which seemed to verify Zang Fusheng's statement.

In this way, things become simpler.

Gu Chen also said indifferently: "The fingerprints of several window handles seem to be similar, maybe the same person opened the window."

"It's either Zhang Xuchang or the murderer, but if I were the murderer, I wouldn't be so stupid as to leave fingerprints, maybe wrap the handle with a cloth strip."

"Of course, this is also relative. Maybe some murderers are careless?"

Thinking of this, Gu Chen suddenly had a different guess, but Gu Chen was more inclined to believe that Zhang Xuchang opened the window himself in order to cool off after the power outage.

Just as Gu Chen was thinking, Yuan Shasha had already finished taking pictures.

Officer Wang also used scotch tape to simply extract some fingerprints from the window handle, then put them on oiled paper, carefully put them into the evidence collection bag, and numbered them casually.

At this moment, everyone knows very well that the murderer may still be in the house after 1:30 noon.

But who it is, at present, everyone still has no definite clues.

Gu Chen hesitated for a few seconds, and asked Police Officer Wang: "When Gao Chuanfeng entered the house, did you extract the footprints on the ground?"

"Yes." Police Officer Wang nodded silently, and said truthfully: "He said the temperature at the scene was too high, so first take the body and evidence back to the Technical Section of the Municipal Bureau for testing."

"The rest of the situation, let us complete, especially the footprints on the ground, and the fingerprint extraction on various furniture in the house."

"He has already extracted the footprints on the ground and found that many of them were wearing foot covers, which is a bit difficult to obtain evidence, so we have been extracting fingerprints on the furniture at home just now."

Officer Wang also told Gu Chen about the difficulty of extracting fingerprints.

Gu Chen opened the shoe cabinet, and it was empty inside.

On the bottom of the shoe cabinet, there are some shoe covers made of nylon cloth, which seem to have been used.

Without saying a word, Gu Chen took out these shoe covers directly, simply sat on the ground, and put the nylon shoe covers on the ground to observe carefully.

Now that the fingerprints on the window handles are in place, if we can find the problem in the shoe covers, maybe we can do both.

But you should know that this is nylon cloth, it is not easy to retain fingerprints, and it seems to be difficult to extract fingerprints.

……

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(End of this chapter)