The Washoe County Sheriff’s Office is trying to find a hit-and-run driver, in a crash that injured a 10-year-old boy. It happened Sunday night just before 7 o’clock in Sun Valley. The sheriff’s office said the boy was riding his bike in his neighborhood and pulled off to the side of the road to let a car pass. The driver waved the boy across the street, but once he was in front of the car, the driver hit the gas and hit the boy, then drove away. The driver is only described as a female. The boy was wearing a helmet and suffered road rash and other injuries.