New York City police are looking for two unidentified people who may have parachuted onto a lower Manhattan street. NYPD Commissioner Raymond Kelly said private security guards reported seeing parachutists land in front of Goldman Sachs' headquarters at about 3am today. The building is near the World Trade Center site. Investigators are studying security videotape from the area; Kelly says footage shows two people with parachutes walking away from the spot. It's unclear whether the pair jumped from an aircraft or from a high-rise building.