Mexican fisherman rescued after 15 days inside 328-ft cave without food

A 31-year-old Mexican fisherman, Erasto Crisanto Valdez, who disappeared while fishing, was found alive after spending 15 days inside a 328-foot-deep underwater cave without food. Rescuers found him in an air pocket that provided breathable air and protected him from surrounding water. A key clue in the search was a fishing harpoon Valdez had been carrying when he disappeared.