Italian prosecutors are reportedly looking into laying manslaughter charges in the fatal sinking of the superyacht Bayesian as a final body, believed to be that of 18-year-old Hannah Lynch, was recovered from the wreckage. The Italian coast guard said Thursday that it discovered the bodies of five people, including the remains of British tech magnate Mike Lynch . At the time, only one person remained missing — Mike’s daughter, Hannah.

A woman’s remains were found by a recovery team on Friday, the Coast Guard said . The body has not been officially identified, but it’s believed to be Hannah. Photos showed Italian emergency workers hauling a plastic body bag ashore.

Lynch and his family were on board the Bayesian, a 56-metre British-flagged yacht, when it went down in a storm early Monday. The boat had been moored about a kilometre off the Sicilian coast near Porticello. Officials believe the ship was struck by a waterspout, a tornado that forms over water, and sank.

Fifteen people escaped the shipwreck and were rescued by a nearby sailboat, including Mike’s wife, Angela Bacares. The seven other people on board died. Search and rescue divers struggled to find the bodies trapped in the yacht’s hull.

The Prosecutor’s Office of Termini Imerese is investigating how the luxury vessel, which shipbuilders touted as “unsinkable,” went down. UK radio network LBC reports that prosecutors are “investigating shipwreck and multiple counts of culpable manslaughter,” tho.