CNN Forensic Files June 18, 2014 07:01:00
Richest hole on earth and copper isn't the only valuable mineral. >> they mine gold and silver. they have very expensive equipment, that sort of thing that. >> theft is a big problem out there. >> as a result, security is tight. >> you don't go on the property without usually encountering security. >> when the security guard wasn't on duty in a guard shack on a winter night in 1991, it was unusual. >> they went up and figured he might be in the restroom and checked it out. and his lunch was partly eaten and his hard hat was still there. >> the guard, bryan ruff was not supposed to leave the sh...