In the Pacification Department, Li Jie sat behind the desk, looking at a confession that had just been sent, arrested so many officials involved in the case, and each official had to be interrogated in detail. After these people confessed, they soon confessed more people involved in the case. Therefore, during this period, the Jinyiwei arrested people everywhere, and the entire imperial prison was almost filled.

Li Jie read this confession in detail, and he marked several of the key points. There were a lot of officials involved in the case, and each of them only knew what was in their position. Du Zheng contacted a few leaders such as Cui Lingyun to form a strict network of interests.

This is also Du Zheng's cleverness. In the entire interest network, except for their leaders, other people did not contact each other. Fortunately, Li Jie and the others captured Meng He at the beginning. As the Minister of Revenue, he was the core figure of the entire interest network except Du Zheng and Cui Lingyun, so he explained so many people at once.

However, Li Jie is also facing a problem now, that is, his identification of Du Zheng. He did not expect Du Zheng to be so decisive and directly kill Cui Lingyun, the only one who can prove his identity. Although Sun Hui can also prove his evidence, it is not enough to convict Du Zheng by his own confession.

So Li Jie now needs to find someone who can accuse Du Zheng from these many criminals. After all, if two people accuse Du Zheng at the same time, even if he bites him to death and refuses to admit it, the court can still convict him.

"This Du Zheng is really a genius. The entire network of interests is tightly structured, independent and connected with each other. He manipulated Meng He, Liu Kang and others through Cui Lingyun, and then they manipulated the entire network. It can be said that except for Cui Lingyun, it is impossible for anyone to prove him." After reading this confession, Li Jie couldn't help but talk to himself with a headache.

Most of the arrested officials have been interrogated, but no one can be found to accuse Du Zheng. Most of the remaining officials have been arrested from other places. It is even less likely that they can accuse Du Zheng, which is also a headache for Li Jie. It is obvious that Du Zheng, the real murderer behind the scenes, could not be convicted of him because there was no evidence in the end.

"Dongdong~" At this moment, a knock on the door suddenly came from outside.

"Come in!" Li Jie said without raising his head.

Seeing that the door was pushed open, Huang Hua walked in with a stack of confessions and said, "Mr. Concubine, this is the latest batch of confessions, but there is no indication of Du Zheng inside."

"Let it go!" Li Jie rubbed his forehead tiredly, then raised his head and asked, "How is Du Zheng there? Did he say anything?"

"No, this old guy is very cunning. No matter how we ask, he just doesn't speak. Moreover, he is a second-rank official, so we dare not to torture him, so we can only stand stalemate now." Huang Hua also replied with some annoyance. When encountering someone like Du Zheng, their Jinyiwei had no choice.

"It seems that this road is not working anymore, so I still have to think of a solution from Cui Lingyun. Has everyone in his family interrogated it?" Li Jie asked again.

Although Cui Lingyun was dead, the murderer who killed him was not found. Moreover, Cui Lingyun was the second second person after Du Zheng, so even if he died, he would still be questioned. Now the entire Cui family has been investigated, and the people from the Cui family have also been taken to the imperial prison for interrogation.

"I've been interrogated, but Cui Lingyun's work is also very secretive. There is only one manager in his family who knows a little. Usually when he goes to see Du Zheng, he is accompanied by this manager himself, but this manager doesn't know much, and he can't identify Du Zheng as the real murderer behind the scenes." Huang Hua replied.

"Why did the murderer who killed Cui Lingyun? Have you found any useful clues?" Li Jie frowned and asked again.

Cui Lingyun was poisoned to death, and the person who poisoned him was the servant of the Cui family, but this servant disappeared after Cui Lingyun's death and has not been found yet. Li Jie suspected that he might have hidden or been silenced.

"Not yet. We have searched all the places that the other party might have gone to, and also checked all the people related to him, but this person was not found. I even asked people to pay attention to the dead bodies that appeared in the city recently, and no suspicious people were found."

Huang Hua finally showed a helpless look. Du Zheng was extremely careful in his work. Whether it was the previous assassination or this assassination, they could find any available clues.

"Continue to check, I don't believe that he, a living person, can disappear from the world. There must be some clues we didn't notice!" Li Jie ordered in a deep voice.

"Yes!" Huang Hua also agreed immediately, but he was a little confused. After all, there are not a few such headless cases. Sometimes the murderer cannot be caught at all, and in the end it can only become a unsolved case.

"By the way, bring the manager of Cui's mansion here, I want to interrogate him in person!" Li Jie pondered for a moment and ordered again. After thinking about it, he still felt that he should start from Cui Lingyun, and this manager was undoubtedly the best breakthrough.

Huang Hua immediately agreed and turned around and left. After a while, Huang Hua personally walked in with a prisoner with disheveled hair, but one of his arms was drooping and blood was stained on his forehead. It seemed that he had suffered a lot in the trap.

"What's your name? How long have you been with Cui Lingyun?" Li Jie glanced at the other party and asked coldly.

"Sir, please spare me. The villain has already explained everything he knows, but I really don't know the others!" Unexpectedly, when the manager saw Li Jie, he fell to his knees and begged.

"A bastard, just answer honestly when the prince consort asks you, don't say these useless ones!" Huang Hua went up and kicked the other party to the ground and cursed angrily. He was used to seeing these prisoners begging for mercy, and he had long since felt no sympathy for them.

"If you cooperate with us and help us solve the case, this prince-consort can save your life!" Li Jie waved his hand to stop Huang Hua, then spoke again, and deliberately stated his identity in his words.

When he learned that the man in front of him was Li Jie, the manager suddenly had a strong desire to survive. He immediately knelt on the ground and nodded repeatedly, "Mr. Prince Concubine, please tell me, the villain must know everything!"

"Okay, answer my two questions just now." Li Jie asked again calmly.

"The villain is named Cui Er. He has been working in the Cui family since his ancestors. Later, when the master saw that the villain was clever, he asked the villain to follow him. He would instruct the villain to do whatever he had, including him to go to Du Shangshu's home." Cui Er replied anxiously.
Chapter completed!