In this March 13, 2018 photo, an FBI tent is seen behind police tape at the base of a hill where investigators were conducting an excavation for Civil War-era gold in Dents Run, Pa. The FBI says the dig came up empty, but treasure hunters believe investigators might have found the legendary gold cache. (Bridget McClure/WJAC via AP)
In this Sept. 20, 2018 photo, Dennis Parada, right, and his son Kem Parada stand at the site of the FBI’s dig for Civil War-era gold in Dents Run, Pennsylvania. The FBI says the excavation came up empty, but the Paradas believe investigators might have found the legendary gold cache. (AP Photo/Michael Rubinkam)
DENTS RUN, Pa. — Surrounded by dozens of stone-faced FBI agents on a frigid winter’s day, Dennis and Kem Parada stared down at the empty hole and knew something wasn’t right.