Italian prosecutors have launched an investigation into James Cutfield, captain of the Bayesian superyacht, which sank off Sicily last week, resulting in the deaths of seven people, including British tech magnate Mike Lynch and his daughter. Cutfield, a 51-year-old New Zealander, is being investigated for possible manslaughter and shipwreck. The yacht, deemed 'unsinkable' by its manufacturer, went down suddenly during severe weather, possibly due to a 'downburst.' Survivors reported that the vessel may have taken on water from an open side hatch. The investigation will consider all potential responsibilities, including those of the crew and the yacht's manufacturer.