The murderers of the first case of the Great Tang's Duke Di Case were Zhangsun Qing, Wei Wuji, and Empress Wu. A series of conflicts occurred between these three people. Zhangsun Qing and Wei Wuji both wanted to depose the Empress by creating rumors, and in order to eliminate them, Empress Wu took the action of killing the palace guards and assassins. In the end, Empress Wu successfully schemed against Zhangsun Qing and Wei Wuji. From the information provided, the three people on the poster were considered the murderers. Thus, the murderers of the first case of Duke Di of the Great Tang were Zhangsun Qing, Wei Wuji, and Empress Wu.
The murderer of the fourth case of Duke Di of Tang was Teng Kan.
The murderer of the second case of Duke Di of Tang was Teng Kan.
We can learn about the murderers of several cases in the "Da Tang Di Gong Case". In the Phoenix Seal Case, the murderer was Di Renjie's teacher, Wei Wuji. In the Screen Case, the murderer was Teng Kan. In the Golden Case, the murderer was Hou Yu. However, the information provided did not include the information of the murderers in all the cases, so it was impossible to give the names of the murderers in all the cases.
The first case of the Great Tang's Di Gong Case was the Golden Case. This case involved ship merchants, scholars, and monks colluding to smuggle gold into the Tang Empire, manipulating gold ornaments to make huge profits. After Di Renjie became the county magistrate of Penglai, he solved the case of Wang Yuan, the former county magistrate, who was poisoned to death, as well as the case of Gu Mengbin's bride's disappearance and Fan Zhong's murder. The Gold Case was one of the cases that Di Renjie had solved through investigation.
The first case of the Great Tang's Di Gong Case was the Phoenix Seal Case.
The murderers in the Great Tang's Di Gong Case were Zhangsun Qing, Wei Wuji, and Empress Wu.
The murderer of the Great Tang's Di Gong Case was Han Yongnan.
He was the murderer of several cases in the "Great Tang Di Gong Case". In " The Rain Master Case," the murderers were Zhangsun Qing and Wei Wuji. They wanted to achieve their goals through rumors. In the Phoenix Seal Case, the murderer was Di Renjie's teacher, Wei Wuji. In the Screen Case, the murderer was Teng Kan. In the Golden Mystery Case, the murderer was Hou Yu. No information was provided on the murderers of the other cases. Therefore, we can confirm that there are at least four murderers in the case of Duke Di of Tang.
The first case of the Tang Dynasty's Di Gong Case was the Phoenix Seal Case, but the specific episode was not mentioned.
The third case of the Great Tang's Duke Di Case was about Hou Yu. Hou Yu yearned for gold. He wanted to use gold to continue the fate of himself and his family. He came from a family that had been officials for generations, and his speech and behavior were decent. This case played the role of the initiator in the plot.