then hinks got a signal near a clothesline post. >> in about 20 minutes, i got a signal that was in the proper reading range as far as the detector was concerned for a shell casing. and i went down, so we cut a little plug, turned it over and there sitting right in the plug was a .25-caliber shell casing stuck to the bottom. when you look at it and you see the patina on it, you know it's not a freshly buried object. >> my first thought was this is too good to be true, this cannot be the one that he actually fired. >> investigators hoped that after 15 years in the ground, the shell could still be tested. . it comes in oral rinse, spray or gel, so there's moisturizing relief for everyone. biotene, for people who suffer from a dry mouth.