"First of all, let me introduce myself, my name is Chen Wenzhong. He is the captain of the Law Enforcement Brigade of Lin'an District, Changling City, you can call me Officer Chen or Brother Chen. After Chen Wenzhong finished speaking, he glanced at the five people who were lost and depressed, and he didn't care about no one responding. continued: "I feel sorry for Cai Yong's death, and all I can do now is to find out the real culprit as soon as possible." Of course, I will call you over: first, I want to find out if Cai Yong has ever had a conflict or conflict with anyone. Second, what are you all doing today from 12 noon to 18 pm? Who has come into contact with Cai Yong, or who has seen Cai Yong for the last time. "In the school security office, five people sat around a rectangular desk. After Chen Wenzhong finished speaking, seeing that there was still no response, he frowned and shouted, "What time is it now?" Yes! Silence isn't gold, you know? Chen Wenzhong's eyes swept over everyone, raised his feet and walked to Wang Yi's side, and patted Wang Yi's shoulder. "You start talking."

"Noon was about 12.30 o'clock, I had lunch in the cafeteria, went straight to the library, and met Cai Yong when I passed the downstairs of the dormitory. It wasn't until 18.20 p.m. that I received a call from the boss that I knew that something had happened to Cai Yong. As for the usual, I didn't find out who he had a conflict with. Wang Yi raised his head and met Chen Wenzhong's gaze, and his face suddenly became hot, as if he had been scraped by a knife. After a pause, he said truthfully.

Chen Xi also added when he saw Wang Yi finish speaking: "I informed Wang Yi that after the class ended at noon today, I returned to the dormitory and didn't see Cai Yong." Han Chengmin and Li Fei were also in the dormitory at that time, and they could prove that as for normal times, it was similar to what Wang Yi said. "Even if there is, I don't know." After thinking about it, Chen Xi still added.

"The boss was right, the three of us were in the dormitory at the time, and because there were no classes in the afternoon, we didn't go out to eat in the cafeteria until 17 o'clock. When I returned to the dormitory, I realized that something had happened to the second child. Li Fei glanced at Chen Wenzhong and replied softly. This sunny boy, who usually likes to laugh, is full of sadness at the moment.

"I was with Cai Yong for the longest time, we played together on the basketball court at about 14:30 in the afternoon, until around 17 o'clock when Cai Yong said that he had a date in the evening and left first. There was no conflict in the process, and everything was business as usual. "Zhou Jie often goes to play with Cai Yong, but today Cai Yong left first.

"Whose teacup belongs to your dorm room?" After listening to this, Chen Wenzhong continued to ask.

"It's mine, I'm the only one in the dormitory who often drinks tea, I made a cup of tea after returning to the dormitory at noon today, and I fell asleep before I had time to drink it, and it was already meal time when I woke up, so I went straight to the cafeteria." Speaking of this, Chen Xi suddenly broke out in a cold sweat, and his eyes behind his glasses couldn't help but shrink, if he had woken up earlier, he would be lying there now. However, because of this, Chen Xi became more and more guilty, the murderer should have come at him, and he killed the second child. But I haven't offended anyone in my daily life? What a grudge this is? Thinking about it is another moment of fear.

"Alright, you guys go back first. I will let you know as soon as there is further information. During this period of time, Chen Xi, you should pay more attention to yourself, it is best not to be alone, according to the current situation, the possibility of the murderer targeting you is the greatest. I will arrange for a police officer to stay on probation, and you can always look for him or call me if you find anything. Chen Wenzhong thought about it, and couldn't ask anything, so he immediately reported his mobile phone number and asked everyone to write it down.

Everyone returned to the dormitory and was silent, Wang Yi finished cleaning up the dormitory and lay on the bed, constantly thinking about various possibilities. If you assume that the murderer can put poison in Chen Xi's teacup, then how did he put it? There were three people in the dormitory in the afternoon, how did the murderer get in? How do you put it?

"Boss, is that cup of tea you made in the afternoon new tea leaves? Or was there tea in the original cup, and you added water? Thinking of this, Wang Yi immediately turned over and got up and asked out loud. It's so important. If it's a freshly brewed cup of tea, the murderer basically doesn't have time to poison it.

"When I think about it, it's like the tea leaves in the morning, and the boiling water I added. What's wrong? Any questions? Chen Xi was still stunned by Wang Yi's sudden questioning, scratching his head and replying.

"Oh, nothing? I just think it's weird. If you were poisoned just after making a cup of tea, then the three of you are in the dormitory at this time of the afternoon, how did the murderer get in? Come in while you're asleep? That's too bold, isn't it? Wang Yi pointed at Li Fei and Han Chengmin and expressed his doubts.

"However, no matter what, boss, you must pay attention to your safety these days, at least until the police catch the murderer." Wang Yi continued. In fact, there is a sentence that he didn't add, if this murderer is aimed at Chen Xi, then he must be very familiar with Chen Xi, because 602 only Chen Xi likes to make tea and drink tea. If not, then it's terrible.

At 19.30 pm on the 20th, 5 days have passed since Cai Yong was killed. Whether it is Chen Xi or others, they are all worried. Dormitory 602 was still shrouded in a haze, and the only clue given by the police was that Cai Yong died of arsenic poisoning.

"That, Wang Yi, can you accompany me to the bathhouse to take a bath?" Zhou Jie packed up his clothes and carried a small bucket, stood at the door of the dormitory and hesitated for a long time, but still said to Wang Yi. At this time, there were only Wang Yi and Chen Xi in the dormitory, Han Chengmin went to the library, and Li Fei was not there. At 19.30 in April, it was already dark outside, and there were basically no people bathing in the bathhouse at such a time. At this time, if you let Zhou Jie go alone. He would never dare, but how could he sleep with the smell of sweat when he just came back from playing? As for Chen Xi, thinking about that teacup, he categorically vetoed it. The only one who can help himself is Wang Yi.

"Okay, let's go!" Wang Yi agreed directly without hesitation, he didn't want anyone to have another accident, although the past five days were calm, but who can guarantee whether the murderer is looking for an opportunity.

"I'll wait for you outside, call me if you have anything." Walking to the door of the bathhouse, Wang Yi stopped and said lightly to Zhou Jie.

"I ...... All right! Then I'm in. Zhou Jie looked at the bathhouse and looked embarrassed. On second thought, I still didn't ask for too much. Turned around and walked in.

"Ah......" Wang Yi waited outside for only 10 minutes before he heard a scream inside, which was Zhou Jie's voice. Damn, I didn't see anyone in there. By the time Wang Yi rushed into the bathhouse, it was too late. Zhou Jie was lying on the ground, and there was warm water squirting out from above. At this time, Zhou Jie's whole body was black and he was electrified?