How did Princess Liu Dan die? When did this happen?

On June 30th, 2000, Liu Dan, the actor of "Princess Xiang" in Princess Zhu Huan, was killed in a car accident on the Shenzhen Expressway. Has disappeared.

Xi said that Liu Dan went to Puning for a commercial performance by car, and there was no collision, but

Because the speed was too fast, Liu Dan flew out of the car when the car braked suddenly, injured his head and died on the spot.