Treasure hunter's disappearance still a mystery after months

Fixated on computer screens and video monitors, an army of volunteers scattered across the country has been painstakingly reviewing hundreds of images and hours of footage recorded over the last four months, desperately hoping to find a single clue to the whereabouts of missing treasure hunter Randy Bilyeu. The Colorado man disappeared in early January in a remote part of northern New Mexico while searching for a 2 million cache of riches supposedly hidden several years ago by an eccentric antiquities dealer. From the shadow of a blue heron flying low over the Rio Grande to a scrap of cardboard, nothing has gotten passed the volunteers who are looking for Bilyeu. The group, linked through email and social media, is analyzing every stretch of the rugged canyons and plateaus along the river via drones and telephoto lenses. Some are searching by foot and boat.