Spock suggested that they use the computer o target Lieutenant Uhura""s amulet-necklace that he had unintentionally given her as a "tracking device" - in part, it was composed of a mineral known as Vokaya, unique to Vulcan, that emitted low-level radiation.Clark ran into a tray of dishes in the suite and spilled wine on his trousers, and as he was in the kitchen cleaning up, he heard a voice in a high-pitched frequency, singing "Hello Dolly" - it was Luthor with a private warning for Superman, both heard and seen out the window on a giant Times Square billboard video sign.The killer inadvertently heard a radio report, from a loud boom box carried by a teenager in the downtown area, that Laurie had been taken to the Haddonfield Hospital, and he followed her there on foot.The captain""s obliging son, Dan (Mickey Rooney) attempts o be friendly, and lends the boy clothes, but is put off by the bratty, obnoxious kid who complains: "These are the worst clothes I ever saw.