The family of one of the five people who died in the implosion of the Titan deep-sea submarine in the North Atlantic in June 2023 is demanding $50 million in compensation. The operator, Oceangate, acted with gross negligence, according to the lawsuit, which was filed with a court in Seattle in the US state of Washington on behalf of relatives of the French scientist Paul-Henri Nargeolet. The five occupants of the submersible were travelling to see the wreck of the Titanic when the accident occurred. The 77-year-old Nargeolet was considered one of the leading experts on the wreck of the luxury …