OceanGate’s rival warned Stockton Rush about submersible’s viewport before doomed dive - Patrick Lahey, the co-founder of Triton Submarines, is testifying now

OceanGate Expeditions is the company that constructed and operated the Titan submersible. The company, based in Everett, drew on expertise from the University of Washington and Washington State University to help construct its marquee underwater vehicle designed to take paying customers to view the wreckage of the Titanic.

OceanGate's former engineering director said he had refused to pilot the ill-fated submersible which imploded more than a year ago.

A witness got emotional recounting the day of the doomed Titan submersible dive while testifying during the U.S. Coast Guard's hearing into the deadly implosion.

The Coast Guard Marine Board of Investigation hearing on the Titan submersible incident revealed new information on the tragedy. Here's what we know.

OceanGate co-founder Stockton Rush was among five people who died when the submersible imploded en route to the site of the Titanic wreck.

The testimony is part of the days-long hearings as authorities investigate the Titan sub disaster that captivated the globe