C70

When the policemen and Loong's friends all looked at Ma Jin, Ma Jin spoke out: "Officer, please observe carefully. I did indeed have an uncomfortable stomach and went to the toilet.

"I'm very sorry, Mr. Ma. In order to protect the privacy of our customers, the store did not have any surveillance system installed. Therefore, no one can prove that you were indeed in the toilet during that period of time." The owner of the shop, Shen Nuo, said.

Although it was possible to check whether or not Ma Jin had ever gone to the toilet from the toilet's excrement, it was impossible to determine when exactly he had gone to the toilet. In other words, if Ma Jin had only stayed there for one minute in the toilet within the span of seven or eight minutes, there would still be enough time for him to commit murder.

"Boss Shen, weren't you there when I went downstairs? I even borrowed a lighter from you. When I came out, didn't you greet me?" Ma Jin said innocently.

Shen Nuo shook his head and said softly: "Mr. Ma, ever since your friend came here, I have always been in the courtyard bathing in the sun. When did I ever see you go to the toilet? Are you asking me to give you false evidence? "

With that said, everyone turned towards Ma Jin, even Yu Jingyan could not help but become suspicious.

"Ma Jin and Loong have a grudge, and his skills are extremely good, it would be easy for him to subdue Loong, he did not have an alibi at the time of the crime, but now, he seems to have lied about going to the toilet … Could it be that I have truly seen the wrong person, the seemingly honest Ma Jin is actually a merciless murderer? " Yu Jingyan thought.

"Shen Nuo, I have no enmity with you, why would you accuse me wrongly? "Comrade Police, quickly check his lighter. He must have my fingerprints on the machine …" Ma Jin shouted in anger.

Unexpectedly, Shen Nuo shook his head: "Mr. Ma, I don't smoke, and I don't have a fire machine on me, don't ask me to act as your witness, my criminal investigation methods are very advanced, the police will definitely not let the murderer go." Shen Nuo said.

Hahaha, Shen Nuo, you tricked me, right? I have a clear conscience, let them find out, Brother Yu, what do you think I meant by that look of mine, do you think I did it? Ma Jin's voice sounded indignant …

"Mr. Ma Jin, please calm down and cooperate with us." Jeb opened his mouth.

A few policemen came over to Ma Jin's side and raised his hand. After the policemen controlled him, he said: "Shen Nuo, I don't know why you wanted to harm me. When I prove my innocence, I will come and demand an explanation from you. Yu Jingyan, you have let me experience what it means to be cold in the face of the world. "

Shen Nuo: "Are you threatening me?"

Jeb: "About that, he wants to seek an explanation from you, it's not even a threat."

Yu Jingyan sighed, he was not sure if Loong's death was related to him, but from the evidence, he could tell that Ma Jin was the most suspicious one, and he did not want to say too much before the matter was investigated.

"Brother Ma, if you are innocent, I will definitely help you clear the suspicion and bring the real culprit to justice. But if you did it, you will face severe punishment from the law." Yu Jingyan said.

Ma Jin nodded and fell into silence.

The police had brought back Yu Jingyan's group, Loong's friends and the Qing Ji owner, Shen Nuo, back to the police station to make a statement.

After recording the statement, Yu Jingyan was called to his office.

"Lao Yu, I know this has nothing to do with you, but you are, after all, not an ordinary person. With your attainments in quantum mechanics, did you notice the murder in the room next door?" Jeb asked.

Yu Jingyan: "I didn't notice at all, I only smelt a trace of the smell of blood, and at that time, the smell wasn't very strong. After being diluted by the smelly socks, the smell of smoke, the smell of alcohol, and the fresh air outside, I completely ignored the smell. However, Loong's death could be said to be soundless. I'm very sorry, if I had been a little more vigilant at that time, maybe I would have been able to stop that massacre. "

Jeb: "Do you think Ma Jin did it?"

Yu Jingyan: "How would I know that you asked this? I fought with Ma Jin and drank wine together, but we haven't known each other for a long time, so I can only say based on my impression that he isn't that kind of person, that the ones on the scene were investigated by you, that the confessions were all recorded by you, and that the relevant evidence and clues were all collected by you guys. You should know this better than me."

Jeb: "Don't be agitated, I asked this because I felt that I'm very familiar with you. In fact, at first glance, this case seemed to have a lot of suspicions, but after careful investigation, I found out that there were still a lot of suspicious points. For example, when Loong's friends left the room, they would casually lock the door, and when we arrived at the scene, there were no signs of damage to the door, unless Ma Jin had a spare key, he wouldn't be able to enter at all. Also, Loong and the man stayed at the Cyan Brigade late last night, and they only knew each other when they were drinking, if Ma Jin intentionally murdered Loong last night, he wouldn't have prepared the key in advance, and wouldn't have enough time to fix the key. Also, Loong's corpse didn't have any fingerprints on it. It's also rather urgent for Ma Jin to kill the strong and robust Loong and remove all traces of the crime. What's more, I can't understand why Loong did not resist, even if he was sleeping soundly, and if Ma Jin had cut open his blood vessels, he would have definitely woken up, struggled, and roared, so it's very strange for you people next door to hear some noise. Furthermore, when Loong died, his face revealed a smile, this point, although it can be explained with the changes in his muscles, but combined with the various suspicions from before, Ma Jin's crime is actually very small.

"What about the weapon?" Yu Jingyan asked.

"According to the comparison between the technicians, the weapon was the razor blade that Loong was holding in his left hand, the weapon also did not have Ma Jin's fingerprints on it, and the blade was Loong's, we found a bag of newly opened razor blades from Loong's bag, they were missing one, and the weapon was the one that his friend mentioned, the weapon was the one that he bought yesterday afternoon after eating. This is also a big doubt, tell me, in the short span of a few minutes, how did Ma Jin formulate such a meticulous killing plan, and use Loong's razor blade to silently kill Loong? Although there is currently no strong evidence to prove that Ma Jin was innocent, from my many years of experience as a police officer, I can tell that this was really not done by Ma Jin. " Jeb said with certainty.

Yu Jingyan nodded his head, agreeing with Jeb's deduction.

Then the problem was, if it wasn't Ma Jin, then how did Loong die?

"Have you checked out the other guests in the youth brigade?" Yu Jingyan asked.

Jeb, Silang, Chen Xi, Ma Jin, Shen Nuo and the two girls in Loong's room. Of course, there was also the dead Loong, the other guests had gone out to play with the group earlier, and the boss of the Cyan Brigade, Shen Nuo, said that since the both of you had gone over, he had stayed in the courtyard to bask in the sun. This explanation was confirmed by Loong's companions, at least when Loong's comrades went down to eat outside, and when they returned, Shen Nuo was still in the courtyard. As for whether Shen Nuo went to the toilet or if Ma Jin went to borrow fire from him, both sides had their own reasons for doing so. It was difficult for us to come to a conclusion on this, so Ma Jin did not have an adequate proof of his absence. Shen Nuo said that other than the rest of you, no one else have went to the Black Brigade today. From the looks of it, the culprit might very well be among you, but I have already eliminated the most likely Ma Jin, so I want to ask, Lao Yu, do you think that Loong might have committed suicide or died in the hands of someone other than you? "

At the time of the crime, he, Silang and the others were chatting in a private room. Because it was noon and he did not sense any danger when he was going to the Cyan Brigade, his vigilance had relaxed a bit. He was not sure if anyone had entered the room next door through the window or some other route and killed Loong with thunderous speed.

But, no matter how clever the method of the opponent was, Loong's fatal injury only happened once, and that was the wound on his right wrist.

If someone tried to murder Loong, it was impossible for Loong to not even have the time to cry for help. After all, the cut was on his wrist, not a fatal artery like the one on his carotid artery.

After thinking about it, Yu Jingyan thought of two possibilities. One, the one who killed Loong was not a human but a demon, a demon who had great skills and could kill without being discovered by Yu Jingyan, and two, Loong committed suicide.

"Jeb, do you think it's possible that Loong committed suicide?" Yu Jingyan asked.

Jeb hesitated for a while, then said: "From my point of view, I believe even more that Loong committed suicide, and I don't believe that Ma Jin did it."

"But did he commit suicide?" Yu Jingyan asked.

"So far, it seems like there isn't any, Loong hasn't studied at all, he had come here for many years and had never done anything proper. He only knew how to cheat girls' money every day, and in other words, he's just a pretty boy who eats too much. Even though this is Ma Jin's first time here and his first time staying in the Guanxin Youth Hostel, Loong has lived here many times. From the records system of the Cyan Brigade, there are a total of five times where he goes with different girls every time, and each time was when they opened a room for other girls. " Jeb said.

Yu Jingyan could not help but scold "scum man" inwardly, but in his heart he was calculating: If Loong did not commit suicide, then he must have done it by demons and devils.

"Loong is not a left-handed person, but from the looks of the corpse, if he committed suicide, that means he cut open the wrist of his right hand with his left hand, this situation does not make sense. Lao Yu, help me, no matter if it's using quantum mechanics or using some other advanced knowledge to explain it, I hope you can help me find the person who killed Loong. Even if that person is Loong himself, I still want to know, why did he commit suicide? " Jeb said.