Zhang Jingde is now in a dilemma, on the one hand, the exact confessions of the two security guards, and on the other hand, the resolute denial of Zhang Xiaogui, the man in the suit.

If the so-called murder weapon can be found in the office, then even if Zhang Xiaogui can quibble, it is impossible to have no flaws.

"Comrade policeman. Zhang Xiaogui showed weakness and said: "I am really wronged, you can't listen to their words." ”

"You mean, these two security brothers are lying?" In Gu Chen's impression, the two security guards seemed to be honest people, but Zhang Xiaogui was a little oily.

But of course, Gu Chen also knows that judging people by their appearance is unacceptable, and Zhang Feng of the Railway Workers' Theater is the best proof of this.

Criminals, often in order to clear their names, when faced with police questioning, the inner universe will suddenly erupt, and it is not unheard of that there have been incidents of explosive acting.

One of the security guards who was bitten by Zhang Xiaogui suddenly said angrily: "You are simply spewing blood, obviously you are suspected of injuring the manager, you are still pretending to be innocent here, I ...... I really want to beat you up. ”

The security guard was so angry by Zhang Xiaogui's words that he almost stomped his feet, rolled up his sleeves and was about to fight with him.

Zhang Jingde and another security guard hurriedly stopped him.

"Stop, before the case is investigated, you must be responsible for everything you say, once you find out who is lying, it will be a crime, and it is still too late to confess. ”

Zhang Jingde is an old comrade who has been a police officer for many years, and he has seen a lot of this kind of statement that both sides insist on their own words.

In his opinion, the testimony had to be conclusively substantiated.

He turned around and asked the security guard who had been bitten just now: "Is there any surveillance on this passage in your mall?"

"Yes. The security guard suddenly realized: "Yes, there is monitoring here, and you will know if you call up the monitoring." ”

Everyone's eyes were focused on Zhang Xiaogui at the moment, but this guy said with an innocent face: "You want to adjust the monitoring, whatever." ”

In the monitoring room, an operator is playing a video replay, but the No. 15 camera shows a black screen.

"What's going on?" Zhang Jingde frowned: "Your equipment is not usually overhauled?"

"It'll be repaired, and if it's broken, it'll be repaired. The operator was also confused, thought about it and said: "I took a leave yesterday, it was my colleague's shift, comrade police, you wait for a while, I'll ask my colleague." ”

Then the operator picked up the phone, dialed the phone, and hung up in distress amid a chatter of beeps.

"Comrade policeman, my colleague said that the No. 15 camera was broken during the off-duty hours yesterday, and it happened that the maintenance master did not work overtime, so I haven't had time to repair it, so I'm really embarrassed. ”

Seeing that he didn't help the police, the operator looked guilty and said a lot of apologies.

"Forget it. Zhang Jingde looked disappointed and said to Gu Chen: "Why don't we go back and look for it?" ”

"Okay, I'll listen to Uncle Zhang. Gu Chen is also refreshing, Comrade Zhang Jingde is busy, and he still has to help to some extent.

Then, another full hour passed.

Gu Chen even opened the ceiling for inspection, but the so-called murder weapon was still missing.

The entire office, including the two security guards who had captured Zhang Xiaogui just now, turned over the cabinets, but still found nothing.

At this time, Zhang Xiaogui said impatiently: "I said comrade policeman, you arrest people casually without evidence, isn't this good? I said that I just entered the office, but I happened to find the manager of the shopping mall lying on the ground, so I hurriedly ran out, but these two security guards insisted that I was the culprit, who should I reason with? Are you still unreasonable?"

"Shut up. Zhang Jingde was very annoyed now, and he began to shake his previous judgment a little.

Could it be that the perpetrator was not Zhang Xiaogui?

He turned his head to look at Gu Chen and asked, "Xiao Gu, I want to hear your opinion." ”

"Let me think about it. ”

Gu Chen was drawing the floor plan of the entire office on the transcript at the moment, when he was interrupted by Zhang Jingde, and said categorically: "According to the floor plan of the scene, it is unrealistic to throw the murder weapon out of the window. ”

Gu Chen had tasted the sweetness of solving the case from the window a few times before, so he repeatedly studied the windows of this one-piece structure today, including whether it was possible to change the glass.

However, this special closed floor-to-ceiling window, all kinds of glass glue are also intact.

Besides, when the two security guards heard the screams of the mall manager, they rushed over non-stop.

Even if Zhang Xiaogui's magical powers are vast, in a very short period of time, it will not be possible to hide it at all.

"That's right. Gu Chen's eyes suddenly lit up, and the master-level reasoning in his mind suddenly popped up with a key word: crime time.

"How long did it take for you to hear the mall manager's screams and then capture Zhang Xiaogui?"

"A minute, right?" the bitten security guard hesitated.

"No, it didn't take that long. Another security guard raised a new question: "It should be forty seconds at most." ”

"How much time is it?" Zhang Jingde was a little impatient, and the answers of the two were too different.

"Otherwise. Gu Chen suddenly had a new idea: "We can simulate the scene just now, I called you, and after you heard my command, you quickly ran to the door from the position just now, and I was responsible for the timing." ”

"Oh, I think this method is good. Zhang Jingde also applauded: "In this way, you can get an accurate data." ”

The two security guards looked at each other and nodded in agreement.

"That'll do. ”

"You're just waiting here. ”

Gu Chen took the mobile phone of one security guard, and then dialed the number of another security guard.

Then, Gu Chen said, "Begin." ”

The two security guards, according to Gu Chen's request just now, began to simulate hearing the phone call, and then locked their eyes on the office door, and then restored the scene of the two of them just now.

When the two of them rushed to the door of the office on the fifth floor, Gu Chen decisively pressed the stopwatch: "Thirty-five seconds twenty-two." ”

The results are finally in.

"Such a short time?" Zhang Jingde was also stunned, and then turned his head to look at Zhang Xiaogui: "If no one enters or leaves the office, then you should be a suspect suspected of attacking the manager of the mall." ”

Zhang Xiaogui was also panicked, and hurriedly defended: "But ...... But I didn't have a murder weapon at all, what do you say?"

The bitten security guard said angrily: "If I find the murder weapon, I will see that I don't blow your head up, and let you taste the taste of your head being crushed." ”

"Don't get excited. Zhang Jingde once again persuaded both sides to make peace.

At this time, the apprentice Comrade Xiao Li asked weakly: "Master, could it be Zhang Xiaogui, who didn't use a murder weapon such as a steel bar or a stick at all?"

"No way. Before Zhang Jingde could reply, Gu Chen took the lead in denying it.

"Why?" Comrade Xiao Li was puzzled: "Isn't what I said wrong?"

"Senior Brother Li's thinking is very right, but. Gu Chen wanted to speak and stopped, thought for a few seconds and then said: "But I just checked all the items that may be used as murder weapons, if it is a teacup, under this impact, there will definitely be fragments, if it is a stool, it must be the sharp corner of the stool, otherwise there is no such power at all." ”

Gu Chen has entry-level observation, and these small details can't escape his eyes at all.

Obviously, none of the things that Comrade Xiao Li mentioned just now were murder weapons.

"This is not it, it is not that, you are going to die in a hurry?" Comrade Xiao Li was denied, and he was also depressed.

However, at this moment, Gu Chen suddenly thought of a new doubt: "By the way, I seem to have missed one of the most critical points just now." ”

......