Sparks Police is now looking for a silver 4-door Chevy Impala with Nevada plates 565-AXT. Investigators found a vehicle they thought was involved in the fatal hit-and-run that killed a Reno woman, but the vehicle and its owner were cleared in the investigation on December 9. The crash on December 4 at G Street and El Rancho Drive resulted in the death of Christy Valdez, 57, and the injury of a man who was also hit. Anyone who has information on the driver or vehicle is asked to call police at 775-353-2231 or Secret Witness.