Huang Zhi was kidnapped, so Du can find out the murderer through a piece of jewelry. This is mainly because the murderer Liu Liankui was reluctant to give up such a pair of exquisite earrings, so he gave them to his lover, who lost to others in the casino. When Du saw the earrings, he knew they were yellow, so Du also found Lu Liankui, the mastermind who kidnapped Huang.

In my opinion, Huang was kidnapped by others because of what he did. You know, Huang was very vain in his later years. When he saw that the mansion built by Du attracted celebrities from the society to worship, he also wanted to build a mansion himself. So he asked different people to send him money to build a mansion. After he built the house, it happened that a house named Cao Xianming was also completed.

Moreover, Cao Cao's mansion is obviously more beautiful than Huang's own, so Huang asked Cao Cao to give himself the white marble lion at his doorstep. Cao Cao was born to look down on Huang, who had fallen, so he didn't get Huang's orders very much. Under such humiliation, Huang sent people to kidnap Cao Xianming, but without success. But Cao Cao was very angry with Huang's behavior, so he also sent someone to kidnap Huang as revenge, and Liu Liankui was one of the participants.

After the kidnapping case was solved, although Huang did not dare to offend Cao Cao, he was not afraid of this little Liu Liankui who was later hacked to death on his way home.