Stranded at sea on a capsized boat 10 miles from shore, Michael Rockefeller decided to chance his luck, telling his companion, "I think I can make it," before diving into the shark-infested waters. Officially, it was the last time he was seen or heard from. Some claim he was almost certainly eaten by sharks . Others believe he was murdered by a r emote tribe in a savage act of revenge. Since then, more than one person has claimed to have encountered the missing American close to where he