The scientific director for the company that owned the Titan submersible that imploded last year while on its way to the Titanic wreckage testified Thursday that the sub had malfunctioned just

David Lochridge, a former director of marine exploration for OceanGate who expressed safety concerns about the ill-fated Titan submersible, said Tuesday that company culture was centered on “making money” and “very little in the way of science.