While salvage crews continue efforts to deal with the wreckage, Francesco Schettino, the ship's captain, is on trial on charges of manslaughter, causing a maritime disaster and abandoning ship with passengers still on board. He denies wrongdoing.

Search teams thought they had found Rebello's remains in October. But the body divers found turned out to be that of Maria Grazia Trecarichi, a Sicilian who was on the cruise to celebrate her 50th birthday with her 17-year-old daughter, who survived.

In a Facebook post, brother Kevin Rebello said he was watching the latest salvage operation live online, since he couldn't make it to Giglio.

"I strongly believe that they will find the body of my dear brother," he said.