Paul-Henri Nargeolet was a French deep sea explorer and Titanic expert. Known as "Mr. Titanic", Nargeolet was one of five people who died aboard the submersible Titan when it imploded on 18 June 2023 near the wreck of the Titanic. From Wikipedia
New audio of the implosion highlights safety lapses behind the tragedy, with wrongful-death claims building on fresh scrutiny of private deep-sea travel.