. >> do you know a press secretary who did a biography of his -- >> ron nelson. did he write a book on ford? >> he probably did. but who could say anything negative about jerry ford? even though he was not elected president. i think he had the widespread -- >> i think larry speaks wrote a book. >> and to say something about jay, i can't remember a single gas that he made and that is really something. when he's up on that tight rope every day in front of television cameras. he kept his cool most of the time. >> he went from here at the request of the vice president. >> 4 years for biden. >> 4 years for biden. that was a great -- >> preparation. >> he had the right temperament. he had a wonderful temperament. it was hard for him to get involved with a frakus with the press. >> i don't know that he slips into oblivion. he's been rumored that he might be named as ambassador to russia. i don't think that's going to happen. >> he brought that up at a christian science monitor breakfast and said that he turn today down. >> he was offer today? >> he was offered it. >> th

in to give you the opportunity to do anything more with it. >> nelson pored over the case file and discovered an interesting notation. ron harshman admitted test firing his new .25-caliber pistol in his backyard just after buying it. that gave nelson an idea. >> what about going out there and seeing if we can find a shell casing and then compare that to the one in the barn. >> when mr. nelson originally told me that and i just kind of gave him a look, this was 15 years to try to find a shell casing in grass, and we are not sure of the exact area. but in this case, being the fact that it's murder, i'm willing to try any idea and it was worth a shot to do. >> police found help in nearby gettysburg, pennsylvania. don hinks known in these parts as a retailer who sells metal detector equipment. these metal detectors were often used to unearth military artifacts. >> i went out and found three french and indian war cannon balls and one whole on the braddock campaign, that probably gave me a bigger high than this .25-caliber shell casing. >> but hinks and several colleagues were happy to do what they could, despite the fact that