While Zhao Yu was still in shock, the surveillance video was still playing. Han Kuan stood outside the toilet partition for less than two seconds, then quickly returned to normal.
At that time, he seemed to realize something, so he quickly returned to the urinal. He then looked around suspiciously and almost saw the camera that Zeng Ke had installed.
Fortunately, at the critical moment, the police officer waiting outside the door became impatient and knocked on the door. Han Kuan quickly looked away, pulled up his pants, and hurried out of the toilet.
After the video was played, Wu Xiumin, who had always been calm, couldn't help but speak first. She looked at Zhao Yu in disbelief and said, "Team Leader, who the hell are you? The probability is one in a billion! How could you have seen it? This … this is too inconceivable! "
"It seems that Han Kuan really has something to do with the Beiqian Devil Case!" Miao Ying said with a solemn expression.
"I … I still can't figure it out …" Zeng Ke said, confused. "How is that possible? It was Han Kuan who asked us to come here. If he is one of the culprits of the Devil Case, that would be too much! Isn't he worried that we'll find out that he is the culprit? "
"I don't know if he is the culprit or not!" Wu Xiumin put another laptop in front of everyone and said, "But, Han Kuan's reaction is absolutely telling!"
It turned out that what Wu Xiumin showed them was the real-time surveillance video from the cell. After returning to the cell, Han Kuan showed obvious psychological fluctuations. He was no longer as calm and steady as before. Instead, his eyes darted around nervously, as if he was worried about something important.
"What happened in the toilet was a kind of stress reaction!" Wu Xiumin said. "In that kind of sudden situation, Han Kuan should have been unprepared, so his reaction was objective and true! When he heard the words' Devil Case, 'he showed obvious abnormal behavior, which is enough to show that the team leader's words had touched on his secrets! "
Wu Xiumin pointed to the two videos and said, "So … From my professional point of view, Han Kuan must know something about the Devil Case!"
"One of the five unsolved cases! Ha ha … "Miao Ying shook her head and laughed." Finally, I found one! And … It's so close! Who would have thought that the murderer from the Devil Case had been with us all this time? Zhao Yu … "Miao Ying excitedly pulled Zhao Yu's arm and asked," Han Kuan will be sent back to the detention center tonight! Should we interrogate him again now? Should we continue our frontal attack? "
"No …" At this moment, Zhao Yu had not yet recovered from the horror that he had just experienced. In the video, Han Kuan's strange reaction made him shudder. He paused for a long time, then said to Miao Ying, "If we lay our cards on the table now, it won't do us any good! We don't have any evidence, and everything we're doing is just speculation. We don't have the capital to lay our cards on the table!
"And … Don't you think …" Zhao Yu asked, "that if we really had a showdown with him, he wouldn't be as worried as he is now?"
"Yes!" Zeng Ke said. "It's such a long case. Where can we find evidence? If the Devil Case was easy to solve, it would have been solved long ago! "
"I … Um …" Wu Xiumin thought for a moment, then said, "I can invite my teacher to arrange a hypnosis session for Han Kuan! But … "Wu Xiumin said to everyone helplessly," First of all, hypnosis doesn't necessarily work.
Second, even if it works, it can't be used as evidence in court.
Third, hypnosis is the same as lie detection. Because it involves personal privacy, it needs to be approved by the relevant laws! And, if you want to get approval, you must have some evidence! But … We don't have anything! "
"So, according to Han Kuan's current situation, it's impossible for the higher-ups to approve it!"
"That's just like what we've said all this time!" Zeng Ke said gloomily. "In my opinion, Han Kuan must be very confident that we can't find anything. That's why he dared to call us here! Leader is right. We have all been used by this person! "
"More or less!" Zhao Yu said bitterly. "I really underestimated this guy who wrote this novel! But … "Speaking of this, Zhao Yu's eyes suddenly lit up." But, we don't need to be discouraged. On the contrary, we should be happy! Don't forget that we were able to solve the first cold case, the Headless Female Corpses Case. What else can stop us? "
Miao Ying couldn't help but ask excitedly, "So … Did you come up with another idea?"
"No!" Zhao Yu replied calmly. "Han Kuan's case is completely different from previous cases. He is a meticulous person, and he won't give in easily! If we want him to tell us the truth, we have to get some concrete evidence!
Of course, you don't have to worry too much! " Zhao Yu comforted the crowd, then said, "Nothing in the world is difficult for a determined person. In the past, we felt confused because we didn't have a goal, so we felt that the case was difficult to solve. But, now that we have a clear goal, we are one step closer than before! "
"That's right …" Zeng Ke said flatteringly, "This is what happened on Yongjin Island. At first, we couldn't see the truth, so we were very confused! But, later, when we suddenly locked onto Captain Dou, we found that all the clues and evidence had been found! "
"Yes!" Zhao Yu nodded. "That's what I mean. Now that we have identified Han Kuan as a major suspect, as long as we focus our investigation on him and the Devil Case, we will definitely find something!"
Wu Xiumin pointed to the documents on the desk and said, "We have investigated a lot of information about Han Kuan, but it seems that we haven't found any problems …"
"That's not enough!" Zhao Yu said firmly. "It's far from enough! The Devil Case is so far away, so we must look further ahead! "
"Yes … By the way …" Zeng Ke understood and immediately said, "I'm going to investigate what Han Kuan was doing during the year of the Devil Case!"
Wu Xiumin said, "He was still at school in Yaoming at that time! It should be the year he was about to graduate! So … We need to focus on investigating what happened to Han Kuan when he was at school. We need to see who he was with and what happened to him! "
"Okay! Then, I'll go and get the information from the Devil Case! "Miao Ying said." Let's reinvestigate the Devil Case! "
Wu Xiumin then said, "I think … Judging from Han Kuan's abnormal behavior in the toilet, I think that my previous psychological assessment of him may have been wrong! Han Kuan's psychological symptoms may be intermittent, so I need to draft a new assessment report and give him another detailed psychological assessment! "
Zhao Yu then said, "If I can find the pattern of his psychological changes, maybe I can find his weakness!"
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