Teen presumed dead after daring jump into shark-infested waters

Cameron Robbins, an 18-year-old high school graduate from Louisiana, went missing after leaping from a pirate ship-style boat into waters near the Bahamas known for sharks.
Video circulated showing a possible shark in the water near Robbins, fueling speculation of an attack, though experts said the footage was inconclusive.
The U.S. Coast Guard searched for days before calling off the effort and offering condolences to Robbins' loved ones.
Robbins was celebrating graduation with hundreds of classmates on a cruise organized by a California-based travel company.
Robbins was remembered as a beloved student, standout athlete and friend by those who knew him.