DENVER Law enforcement is asking the publics help in identifying the driver of a truck allegedly connected to a hit-and-run crash that seriously injured a pedestrian in Denver early Saturday morning.The Colorado Bureau of Inves tigation (CBI) issued a Medina Alert after investigators said a pedestrian was struck by a 2003-2007 Chevrolet Silverado truck at around 1:48 a.m. at 48th Avenue and Kalamath Street.The driver of the truck left the scene, said the CBI. Investigators issued the Medina Alert with photos of the driver and truck. The license plate number is not known, but the truck is described as an early 2000s Chevrolet Silverado with a grey cab, black truck bed, blue tailgate and mismatched wheels on the driver side.There was no additional information available on the pedestrian.This story will be updated as Denver7 learns more. ...read more read less