Xu Xin drank the stuffy wine with a heavy heart, and although Xiao Song on the side had been talking with Zhang Yuanshan, Li Bing and Qian Yiduo, he secretly observed Xu Xin's expression coldly from time to time.

Seeing everyone happily drinking wine, before they knew it was ten o'clock in the evening, Xu Xin looked a little anxious, he stood up and said: "Everyone, the lights in the school are about to be closed, I want to be absent, now go back to school." ”

Xiao Song smiled with a drunken smile: "Xu Xin, it's okay, I'll say hello for you tomorrow, just say that you cooperated with our criminal police team to investigate Professor Zhao's death today, so you couldn't return to school on time." ”

Xiao Song had already observed Xu Xin's abnormal reaction, and he concluded that there were ghosts in it. Therefore, he deliberately kept drinking, just to make Xu Xin restless and expose his flaws.

At this time, Xu Xin was indeed full of anxiety, and his mobile phone had already sounded more than a dozen times. He knew in his heart that it must have been Lu Qin who called him.

It's just that he is facing Song Rui'an, the deputy captain of the criminal police team, Xu Xin, who is weak because of the abandonment of the dead baby, and he doesn't dare to answer Lu Qin's phone, for fear of letting others hear something on the phone.

Suddenly, Xiao Song's mobile phone rang. He pulled out one, an unfamiliar public phone number. Xiao Song didn't care, after all, because of his work, his number was almost public.

As soon as Xiao Song connected the mobile phone, a deep male voice came from the other end of the phone: "Is it the Song team of the criminal police team?" ”

Xiao Song hummed for a moment and asked, "Who are you?" ”

The other party still said in a low voice: "It doesn't matter who I am, Zhao Shengli's case should be what you are most concerned about at the moment, right?" ”

Xiao Song was shocked, and most of the alcohol suddenly subsided. The other party continued: "I know, Team Song, you definitely don't understand why Professor Zhao hanged himself for no apparent reason, let alone where the toxins in his body came from. ”

Xiao Song asked nervously, "Who are you?" Do you have any clues? ”

The other party's voice lowered, as if he had lowered his voice: "Team Song, I just want to tell you a common sense of life: eating chicken and sesame seeds at the same time will cause poisoning, and in serious cases, it will lead to death." ”

Xiao Song was extremely shocked at this moment, but he heard a blind sound from his mobile phone, obviously, the other party hung up the phone.

At this time, the bright lights of a big truck shone outside the window, and Xiao Song hurriedly rushed to the window to look outside.

As soon as Xiao Song saw the light, he remembered the sound of the car motor coming from the receiver before the other party hung up the phone, which was the sound of a big truck. Xiao Song immediately realized that the public phone was not far away, so he rushed to the window.

Looking out of the window, there was not a single pedestrian on either side of the street, and there were no public phone booths.

Xiao Song Gang was a little disappointed, but saw a man's figure flashing quickly next to the boulevard in the university opposite. His heart moved, and he said to Xu Xin: "Xu Xin, come and have a look." Is there a public phone on the side of the boulevard less than 50 meters from the school gate? ”

Xu Xin nodded affirmatively and said, "Yes, it was a coin-operated phone." ”

Xiao Song was thoughtful, and suddenly asked, "Xu Xin, did you give Professor Zhao's bag of mushrooms and sesame seeds?" ”

Xu Xin said: "Yes, this question, I talked to your criminal police team after I reported the case. Those two packets of things were handed over to Professor Zhao by Wang Wei of Little Guizhou. ”

Xiao Song snorted coldly: "That's really the case, Li Bing, you're right, people who are often honest in appearance are very likely to do things that make people around them feel incredible due to psychological distortion." Now it can be basically concluded that the little king of Guizhou is only suspected of murder. ”

Several people exclaimed at the same time, and they all focused on Xiao Song.

Xiao Song looked at everyone and said, "I just received a strange call, it's a public phone. Maybe he didn't know that I was with you, but he was looking for me directly, with an obvious purpose, or maybe he was an insider and provided me with clues to the death of Professor Zhao. ”

Xiao Song's expression became serious: "None of us thought that eating chicken and sesame seeds at the same time would produce toxins and lead to death." Xu Xin said that Professor Zhao is a native of Northeast China, prefers to eat chicken stewed mushrooms, and usually pays attention to health preservation, so when he receives black sesame seeds, he may eat them that night. In this way, these two samples are a fatal poison for Professor Zhao. No wonder we tested Professor Zhao's leftover food but found nothing poisoned, it turned out that the murderer calculated that Professor Zhao would eat both at the same time. ”

Although it is still unclear why Professor Zhao chose to hang himself after being poisoned. But since there is a suspicion of his murder, it is not difficult to understand. After Professor Zhao was poisoned, the murderer was worried that it would not be enough to cause death. Therefore, when Professor Zhao had a toxic attack and lost his ability to resist, he easily faked the scene where Professor Zhao hanged himself. ”

Zhao Wan'er also shouted in surprise: "I didn't expect that this little Guizhou in Mune, who is usually Mune, is so terrible in his heart." Did he kill such a respected professor just because he failed in his studies? ”

Li Bing also nodded and said, "It seems that it is very likely to be like that." Moreover, he was also very smart, and somehow he got the secret that eating these two foods at the same time would be fatal, and he actually wanted to kill Professor Zhao skillfully through Xu Xin's hand to vent the hatred in his heart. Alas, it seems, man is really not to be seen. Such a deep scheming, such a vicious heart, is really much more terrifying than a ghost. ”

Xiao Song picked up his mobile phone, dialed the criminal police team, and quickly dispatched the police to arrest Wang Wei, who was extremely suspected of committing the crime. Although there are still many unsolved mysteries, Xiao Song believes that as long as Wang Wei is caught, all mysteries may be solved with the interrogation of Wang Wei.

Xiao Song ordered the others not to move, and he quietly loaded the 54-style pistol he was carrying with him and came to the school communication room.

After showing their ID to the security guard in the communication room, after a while, three police cars quietly arrived at the door of the school's communication room without sirens or lights.

Xiao Song divided the personnel into two groups and led them to quietly touch the dormitory building where Wang Wei was.

Behind the dormitory building is a meadow, and beyond the meadow is the school wall. Xiao Song and the others quietly turned to the edge of the meadow, just because there were no street lights there, so as not to let Wang Wei find that there were criminal police approaching.

Just as Xiao Song and the others were about to sneak into the dormitory building, suddenly, there was a strange noise on the wall.

Xiao Song waved his hand, and all the criminal policemen immediately squatted down, staring at a black shadow that appeared on the wall with wide eyes.

I saw that the black shadow floated down from the wall like a ghost, not at all like a normal person turning over from such a high wall, it was like those martial arts masters who flew off the wall in martial arts novels, and his body looked so light and elegant.

Xiao Song hinted at the other criminal policemen to calm down, because there was another mystery in his heart at this time, except for the man who made the anonymous call, who would be this black shadow that passed over the wall?

A scene that surprised Xiao Song happened, only to see that black shadow quickly walked in the direction of a bedroom on the ground floor, in fact, it was actually floated away.

That bedroom was the bedroom where Xu Xin and the others were, and the last time they came to investigate, Xiao Song was familiar with the location of that bedroom and everything around it.

I saw the dark shadow stop in front of the window, as if looking for something. Xiao Song felt so strange, and commanded the criminal policemen to slowly move towards the black shadow from the shadows.

When he was not far from the black shadow, Xiao Song was surprised to find that the black shadow seemed to be sniffing something. Sniffed, shook his head, and so on many times.

After a while, the black shadow seemed to have lost his patience and put his hands on the burglar-proof window of the window. I didn't see how hard the black shadow was, and I didn't see any abnormal noise from the iron window railing, and the anti-theft window actually made the black shadow pull open silently.

Just as the black shadow quietly moved the glass window and turned sideways, about to sneak into the dormitory, with the help of the reflection of a car light from outside the campus wall, Xiao Song was surprised to see that the black shadow turned out to be the target they were about to arrest, Xiao Guizhou Wang Wei.

Xiao Song shouted, hugged with several criminal policemen, and pressed Wang Wei from the windowsill to the cement floor.

Just like when Xiao Song's hand grabbed Wang Wei's vest, he suddenly felt a cold breath floating through his hand, and it seemed that he vaguely heard a whimpering sound fading away.

Several criminal policemen pointed their guns at the black shadow, then turned on the flashlight, and shone their brushes on the black shadow's face. Sure enough, it was Xiao Guizhou Wang Wei, but Xiao Song felt very strange, the black shadow that was as light as a ghost just now turned out to be a Xiao Guizhou who seemed completely prostrate, and his eyes were blank, and the corners of his mouth were constantly twitching and spitting out white saliva.