Overview

• Investigators concluded John Barnett died by suicide after reviewing ballistics and autopsy reports.
• Barnett, a former quality-control manager, had been testifying in his whistleblower case against Boeing.
• He had reported serious safety defects in Boeing's 787 planes, which he felt were ignored by the company.
• Barnett's family blames Boeing's treatment for exacerbating his mental health issues.
• Barnett's whistleblower case is expected to go to trial in September.