"Zongyu, can you tell us about your sister?" Xu Tian asked.

"I ...... I don't know, I don't know anything! Zong Yu suddenly covered his head and shouted, his expression became very irritable.

Swallow tried to stop Zong Yu, but Zong Yu pushed Swallow away, and if Dr. Lin hadn't caught Swallow, Swallow's head would have almost hit the corner of the table.

Zong Yu ran to the door with his head in his hands, Kang Yuliang chased after him and grabbed the back of Zong Yu's neck, but this time Zong Yu did not show that he was very afraid of Kang Yuliang, although Kang Yuliang had already stretched out both hands to Zong Yu, at this time Zong Yu was like a kitten with the fur on the back of his neck, although Zong Yu couldn't move, but his mouth was still yelling, and the cry was no different from a frightened cat.

Except for Xu Tian and Teacher Jin, everyone else showed a very surprised look, and Kang Yuliang reluctantly let go of Zong Yu.

Just when Kang Yuliang just let go of his hand, Zong Yu turned around and pounced on Kang Yuliang, fortunately, Kang Yuliang's skills were agile, just a light flash, Zong Yu pounced.

Kang Yuliang felt that the momentum was not right, and quickly hid on the side of the stairs.

Zong Yu tried to get up in front of everyone, but his body couldn't exert his strength at all, Zong Yu rolled and crawled on the ground, and his only goal was the gate.

"Something is wrong! Go and save him! Xu Tian shouted.

Teacher Jin immediately ran to Zong Yu's side, but at this time, Zong Yu had already pinched his neck with both hands, and his facial expression was exactly the same as that of the young man who squinted before, and then Zong Yu's eyes began to bulge, and the capillaries in the white eyes began to expand, and Zong Yu's eyes became red in an instant.

Zong Yu suddenly became a little happy when he saw Teacher Jin, Teacher Jin quickly helped Zong Yu up, and turned Zong Yu's body sideways with a very fast speed, Teacher Jin turned his back to everyone, and blocked Zong Yu's head to his chest with his back.

Teacher Jin found out that Zong Yu had something to say, but at this time Zong Yu was speechless, and Teacher Jin knew very well in his heart that this scene could not be seen by the murderers present, so Teacher Jin did so many things.

"How are you?" Teacher Jin asked Zongyu.

"Uh......h I ......" Zong Yu's throat couldn't make a sound at all, and he could only hum heavily.

Teacher Jin grabbed Zong Yu's left hand, he wanted Zong Yu to write the criminal's name on his hand, Zong Yu also instantly understood what Teacher Jin meant, but Zong Yu only wrote two strokes and then lost his breath.

Everyone present was dumbfounded, Zong Yu's testimony is very important, it can be said to be a key part of the whole story, but no one can hear Zong Yu's story, and no one present is not amazed.

"Did he die?" Xu Tian stepped forward and asked.

"It's hopeless, just like the squinting young man, Zong Yu is dead." Teacher Jin turned around and said.

When Teacher Jin turned around, Xu Tian found that Teacher Jin was already blinded at this time, Teacher Jin had never behaved like this in front of Xu Tian, Xu Tian knew very well in his heart that this time Teacher Jin was very desperate.

In fact, Xu Tian's heart is also like this, but as soon as Zong Yu died, Xu Tian was even more convinced that the mysterious Tian Tian must have some kind of relationship with Zhinian Tai Sui, and now one of the people here is the murderer, which is also a sure thing. The murderer didn't want Zong Yu to tell the story of his sister, and the story of Zong Yu's sister was likely to be very unfavorable to the murderer, so the murderer chose to kill him.

"Can you have a judgment?" Xu Tian asked.

"Are you asking about the depth of Zongyu's poisoning?" Teacher Jin said.

"We need to know when Zong Yu was poisoned." Xu Tian said.

"Zongyu's skin doesn't turn blue so quickly, so I think it should be slow poison." Teacher Jin said.

"Slow poison? That means that the murderer had the idea of killing Zong Yu an hour ago? Xu Tian said.

"There is this possibility, looking at Zong Yu's final phenomenon, it can be concluded that Zong Yu and the squinting young man are the same poison, but Zong Yu's skin color has not changed, and the skin color of the squinting young man has changed quickly after he died of poisoning, so it can be concluded that Zong Yu should be slow poison, and the squinting young man has to be fast poison." Teacher Jin said.

"So...... In this way, it is even more difficult to judge the murderer, if the murderer poisoned Zong Yu an hour ago, it shows that the murderer was not afraid that Zong Yu told the story of his sister to poison Zong Yu, it seems that the murderer has planned to kill Zong Yu since he went downstairs. Xu Tian said.

"In this way, the time of poisoning of the squinting young man should be during the period when everyone is going down the stairs, and we have to tell Li Zhitong upstairs." Teacher Jin said.

"I want to go upstairs, Mr. Jin, you stabilize everyone's emotions first, don't break out of this building at this time." Xu Tian admonished.

"I don't need you to say that I know that it's more dangerous outside than inside, it's an indisputable fact." Teacher Jin said.

"Do you have something to bring to Li Zhitong?" Xu Tian asked.

"You just tell her everything that's going on downstairs." Teacher Jin said.

"Then take care." Xu Tian admonished Mr. Jin and walked to the staircase.

"Xu Tian ......" Sitong ran over to catch up with Xu Tian, intending to follow Xu Tian upstairs.

"You follow Teacher Jin, don't leave Teacher Jin's sight, I'll come down immediately." Xu Tian said.

"That'...... Then be careful. Sitong told Xu Tian worriedly.

"Don't worry! There was no danger upstairs. Xu Tian said.

Xu Tian went upstairs worriedly, and as soon as he arrived upstairs, he saw Li Zhitong.

Li Zhitong, who was upstairs, was not investigating the case, and at this time Li Zhitong had already fallen asleep on the floor, which made Xu Tian feel very surprised.

"Hey! How did you sleep? Xu Tian called Li Zhitong and said.

"What's the noise?" Li Zhitong sat up lazily, stretched a very comfortable waist and said.

"When is it that you still have the leisure to sleep here? Didn't you say you were going to investigate the case upstairs? Xu Tian said.

"There's nothing to check, everyone who damns has to die, does it make any difference if you don't check it?" Li Zhitong said.

"You don't look like a person of your profession can say it, what the hell is wrong with you? Do you already know who the murderer is? Xu Tian asked.

"I don't know, but I know who's going to die." Li Zhitong said.

"What do you mean? Are you here to talk to me? If you have something to say, I can listen, but I don't want to hear you say that you have something to say. Xu Tian said.