Who did Tsui Hark kill?

Tsui Hark is a very good director and a genius, but it is estimated that many people will think it is a bit nonsense to say that Tsui Hark killed someone! But this is not completely unfounded.

It was 1992. Cai, the agent of Jet Li, had just stepped out of the elevator when he was shot by two gunmen. Later, someone claimed to be the murderer and called the media anonymously, revealing that he had been bought by a Hong Kong film producer.

Afterwards, many people speculated that this person might be Tsui Hark. Why is there such a guess?

Many people suspect that Tsui Hark was filming "Men Should Strive for Self-improvement", and Cai quietly took Jet Li away, which caused huge losses to Tsui Hark.