The Charleston Police Department found no evidence of third-party involvement in the death of Boeing whistleblower John Barnett and concluded that he committed suicide due to mental problems, the US media reported.
Barnett, who worked for the company for more than three decades and accused it of cutting corners to expedite production of its aircraft, was found dead from an apparent self-inflicted gunshot wound on March 12. He was involved in a whistleblower retaliation case against Boeing.
On May 2, US media reported that the second Boeing whistleblower and quality inspector for the Boeing supplier Spirit AeroSystems, Joshua Dean, died due to a sudden infection after reporting safety failures on passenger jets.