for the next three summers, bill booth, his partner, dave martinez, and others camped in the uncompahgre national park and looked for the .308 rifle. on one of their trips, booth and martinez took along a member of necro search international, an organization of volunteers who use new technologies to find missing people. and in this case, missing weapons. they were searching for the rifle in a pond near j.c. lee's campsite. >> it was at that time that we were at the pond near the ex-husband's camp when an individual from necro search international identified the lining of this pond, stock pond, to be bentonite clay. and he said, boy, that's very unusual to have betonite clay in the middle of the uncompahgre national forest in a stock pond. >> and this jogged their memory.