Warren Chu was 9 years old when he was killed in New York City on September 6, 1988. He was described as an Asian male. The New York Police Department opened an intensive investigation that drew significant media attention and public interest in the months after his death.

Investigators pursued numerous leads over the years and questioned several people identified as persons of interest, but the case remained unsolved for a long period. At some point a key witness came forward with information that pointed toward a suspect, reinvigorating the investigation and eventually leading to an arrest and a trial that included forensic evidence and witness testimony.

Those who knew Warren or who were in the area in 1988 and might recall details about that day or people connected to him are asked to come forward with information.