At least something positive may come out of Fossett's disappearance:
Search for Fossett could solve decades-old mysteries
Searchers have turned up half a dozen previously undiscovered plane crash sites, and they believe there may be as many as 200 such sites around the Sierra Nevada range, where soaring mountain peaks, deep ravines, sagebrush and trees provide natural camouflage for downed planes.
William Ogle said he hopes one of those planes may turn out to be the aircraft his father was flying when he disappeared.
In 1964, his father, Charles Ogle, a businessman and ex-military pilot, flew a single engine plane out of Oakland, California, headed for Reno, Nevada. The wife he was divorcing, two daughters and William, then 4, never saw him again.
"There's a wreck that [searchers] think is from the '60s. So we're hoping that that's the one," William Ogle told CNN affiliate WCJB in Gainesville, Florida.