Mr. Mao was standing on the street stacking oranges when he was killed.
No arrests have been made, and the only solid lead disclosed by police involves two black men seen fleeing the scene in a small silver car. The pair is thought to have either witnessed the shooting or to have been the intended targets. At the time, 6:30 p.m., the street was packed with shoppers and homeward-bound residents, several of whom gave statements to police. But after the first day of the investigation the flow of information swiftly dried up, much to the homicide squad's dismay. Now witnesses appear to be responding to a fresh appeal for assistance. Along with at least two anonymous Crime Stoppers tips, four people stepped forward yesterday and will be interviewed, Det. Gray said. Hours of closed-circuit surveillance tape are also being scrutinized. Tomorrow evening on Gerrard Street, meanwhile, at the exact time and place of Mr. Mao's death, a Chinese-language flyer will be handed out seeking further help. Later in the evening, Mr. Mao's family will hold a ritual...