The Kiwi who tried to stop the OceanGate Titan disaster

Rob McCallum, warned OceanGate years before the Titan submersible imploded, killing five. He'd cautioned against the carbon fiber and titanium construction. McCallum highlighted the unclassed nature of the Titan, unlike his company's steel or titanium submersibles. He believes Stockton Rush bears primary responsibility, aided by engineers and a missing board. Many factors contributed to the tragedy.