A U.S. Coast Guard report found the OceanGate Titan submersible implosion was preventable, citing design flaws and safety oversights. Stockton Rush, OceanGate CEO, was determined to be responsible for ignoring warnings and regulations, leading to the fatal incident.

A report on the death of five people in the Titan submersible blames design, maintenance, and inspection flaws for its failure. “It all came back to Mr. Rush,” the head of the investigation told WIRED.

The deep-sea catastrophe was the result of repeated failures by the company and its late CEO to follow safety, testing and maintenance protocols, the Coast Guard said.