"There are going to be a lot of questions about the investigation that I cannot answer. Anything I say here will be heard by the abductor," he said. "It would jeopardize our efforts to locate her and to bring her abductor to justice."



A University of Illinois police spokesman said Chinese language posters were being put together with information about the case.



Zhang was last seen on a surveillance video getting into a black Saturn Astra in Urbana on the afternoon of June 9. Police have labeled the case a kidnapping but haven't ruled out other scenarios.