A former Boeing employee who became a whistleblower against the company has been found dead amidst a lawsuit he had been aiding.

John Barnett died on March 9 at the age of 62 from what police have described as a “self-inflicted wound. Prior to his death, he had “been giving evidence in a whistleblower lawsuit against the company,” per the BBC. Barnett had retired from the company in 2017 for health reasons after working with Boeing for 32 years. The BBC writes:

From 2010, he worked as a quality manager at the North Charleston plant making the 787 Dreamliner, a state-of-the-art airliner used mainly on long-haul routes.

In 2019, Mr. Barnett told the BBC that under-pressure workers had been deliberately fitting sub-standard parts to aircraft on the production line.

He also said he had uncovered serious problems with oxygen systems, which could mean one in four breathing masks would not work in an emergency.

Barnett further said that emergency oxygen systems for the Boeing 787 had a failure rate of 25 percent in a real-life emergency, adding that he alerted upper management to the problems. After he began working in a South Carolina facility, he observed workers failing to follow procedures to track components through the factory, and in some cases, workers used sub-standard parts to prevent production delays. While Boeing denied all of his claims, the Federal Aviation Administration (FAA) confirmed in 2017 that some of his arguments had merit, determining that the location of at least 53 “non-conforming” parts in the factory were considered lost, demanding that Boeing take “remedial action.”

Barnett had been in Charleston at the time of his death and even gave a formal deposition last week. On March 9, he was found dead in his truck in the parking lot of the hotel where he was residing. His lawyer described the death as “tragic,” and Boeing expressed their condolences to his family.

“We are saddened by Mr. Barnett’s passing, and our thoughts are with his family and friends,” said the company.

Paul Roland Bois directed the award-winning feature film, EXEMPLUM, which can be viewed for FREE on YouTube or Tubi. “Better than Killers of the Flower Moon,” wrote Mark Judge. “You haven’t seen a story like this before,” wrote Christian Toto. A high-quality, ad-free stream can also be purchased on Google Play or Vimeo on Demand. Follow him on Twitter @prolandfilms or Instagram @prolandfilms.