Speaking of this, Zhang Bin paused, wanting to leave us a buffer time, but Sun Jianguo immediately said: "Go on, don't stop." ”

"The three people who played mahjong with Ku Yutao last night actually did not give false testimony, but Ku Yutao did not leave the table, Zhang Lei was not killed by him, Zhang Lei should have been killed by Lan Kai, and he has been helping Ku Yutao to finish, it was no one else who killed Du Xianchao and Guo Da, it was Ku Yutao, and what Ku Yutao didn't know was that every time after he committed a crime, Lan Kai would enter the scene of the crime and help remove the traces he left."

Hearing this, I was also a little confused, why did Lan Kai get involved in this matter? Still took a lot of trouble to clean up the crime scene for Ku Yutao?

Sun Jianguo couldn't help but ask suspiciously: "Where is the basis for what you said?" ”

"The reason why I judged that Lan Kai had been doing the finishing work was because I heard a very important clue this morning, Lan Kai only came back this morning, and I heard the residents of the building say that he was in the building at the time and was not locked outside, that is, he had the key to the corridor, and today he came back from the hospital, at this time Zhang Lei had already been hanged by him, and he couldn't open the door for him, so only he could open the door."

"Moreover, there is another point, when it was time to go to work this morning, Lan Kai did not take out the key to open the door, but followed the other residents to find the duty room and shouted Zhang Lei to get up, he deliberately guided everyone to find his body. I also asked some residents that it was Lankai who kicked the door, it was Lankai who put the body down, and he was the last person to hang the person, if it wasn't for him, he wouldn't have been so active at all. ”

"According to what you say, Lan Kai has the key to the corridor, and he can go back to the dormitory at any time, without the help of the dormitory administrator Zhang Lei, so he can enter the crime scene to clean up the traces, but how do you explain Ku Yutao's murder? I'm afraid there's no right reason, right? Could it be that he also has the key? ”

"No, I don't know if he has the key or not, but the person must have killed him correctly, otherwise it would be impossible to leave evidence of fingerprints at the scene. We have been thinking about the sound made when the body is divided, in fact, there is a period of time when no one will pay attention, that is, when people come back to cook, the sound at the end of the corridor at that time is amplified through the corridor, which is enough to cover up most of the noise, plus people don't care much about the situation in Du Xianchao's house, so it makes sense that the situation at the time of the division was not discovered. ”

"Then the reason why Zhang Lei went to the rooftop was also called by Lan Kai? Preparing to kill him? ”

Hearing Sun Jianguo's question, Zhang Bin couldn't help frowning and said: "According to this line of thought, the reason why Zhang Lei went to the rooftop was called up by Lan Kai, I don't know if Ku Yutao and Lan Kai reached any consensus and agreed to marry Zhang Lei, if this is the case, Zhang Lei will not live last night, when Xiao Xu saw Guo Da's body, he should have died at that time, which can explain Guo Da's death, suicide in fear of crime, and the two cases can be solved by the way." ”

"But what I can't figure out is that when Xiao Xu went up, Zhang Lei stayed on the rooftop, and it can be seen from the appearance that he was not hurt, but he was a little flustered, and I felt that it was ......"

Seeing Zhang Bin's desire to speak, Sun Jianguo took over and said: "Zhang Lei always knew that the murderer was Ku Yutao, and the deceased happened to be his enemy, and he couldn't bear to confess the person after taking revenge, so he took measures to conceal it, and Lan Kai was afraid that the matter would be exposed, so he still hanged Zhang Lei last night, right?" ”

Zhang Bin slapped his thigh violently and said loudly: "Yes, yes, yes, I am even more suspicious that maybe when Ku Yutao killed Du Xianchao, Zhang Lei knew the situation, and even the three of them discussed it before committing the crime, and it was a joint crime of the three of them." It's just that when he was on the rooftop, Zhang Lei hesitated, so he was able to explain the reason why he was on the rooftop, and he made up such a lame excuse. ”

Sun Jianguo sat upright and recorded something in his notebook, and looked at him after a while: "Yes, your line of thought is very worthy of reference, you will follow this line of thought when you go back, whether Lan Kai has left the hospital or not, this is a very important point." I'm telling you, we've been ignoring one person. ”

I subconsciously blurted out: "Su Fuhai? ”

"Yes, this person is someone we have been ignoring, haven't you noticed that this person has an equally good chance of committing a crime? Don't count it by age, if you count it from age, this person can't commit a crime at all. ”

I was stunned for a moment, and said hesitantly: "But age is there, and I can't fake it." ”

"Can't you really fake it? In that chaotic era, there was nothing that could not be faked, no one could fabricate a person out of thin air, let alone age, and there would be no birth certificate from the hospital. ”

I looked at him dumbfounded: "There is still such an operation? ”

Sun Jianguo said disdainfully: "What do you think? In fact, many of the babies born in that era and the babies born during the family planning period in the nineties were changed in age, otherwise they would not have been able to get a household registration at all. ”

"Vice captain, according to what you mean, Su Fuhai is not only twenty-seven years old at all, but a little older, and he also experienced that sport back then?"

"That's right, that's what it means, because of his age, it's enough for most people to rule him out from the motive for committing the crime, and from the perspective of reverse thinking, this person also has no possibility of ruling out suspicion."

Speaking of this, Sun Jianguo's tone became a little low, and he said slowly: "My junior high school classmate, a sunny and handsome boy, beheaded and killed a person on the street one day, and later learned that when he was a child, his mother was abused by a strong girl in front of him at home, and then he was beaten by shit, and the scum was caught and put in prison, and he was hacked to death on the street that day." ”

"I don't know if Su Fuhai encountered such a thing back then, if it wasn't the best, I don't know if that classmate in junior high school was wrong, but I knew that he was wrong, because he lost his life because that scum ruined him. No matter how old Su Fuhai is, he will definitely not be more than thirty-five years old, if he did these three cases, then it can only be said that Du Xianchao and Guo Da, the two scumbags, really ruined him. ”