The captain of the superyacht that sank off the coast of Italy last week during severe weather, killing seven, is under probe by Italian prosecutors.James Cutfield, 51, of New Zealand, is under investigation on suspicion of manslaughter and culpable shipwreck, Italian media reported Monday.He and 15 others survived the sinking of the Bayesian. British tech entrepreneur Mike Lynch, his daughter Hannah and five others died. "The Bayesian was built to go to sea in any weather," Franco Romani, a nautical architect who was part of the team that designed the yacht, told daily La Stampa in an interview published on Monday.