to have some sort of record with something. >> we had divers check the ponds in the area. talked to neighbors, if they had seen anything unusual, if they saw him leave. no one did. >> melvin's dental records were compared to every unidentified body discovered anywhere in the united states, with no success. the only lead in the case was from a neighbor who said he saw a brown pickup truck near melvin's home on the day he disappeared. it was similar to the truck that ron harshman owned. ron's wife and melvin snyder once had an affair. >> whether it was harshman's truck or not, i don't know. we don't know. >> police discovered that harshman had purchased a .25-caliber handgun just a few weeks before melvin's disappearance. coincidentally, a .25 caliber