Charleston: A former Boeing employee who previously raised concerns about the company’s production standards has been found dead in the United States. John Barnett had worked for Boeing for 32 years, until his retirement in 2017, and gave evidence in a whistleblower lawsuit against the aircraft manufacturing giant, according to a report by BBC.Charleston: A former Boeing employee who previously raised concerns about the company’s production standards has been found dead in the United States. John Barnett had worked for Boeing for 32 years, until his retirement in 2017, and gave evidence in a whistleblower lawsuit against the aircraft manufacturing giant, according to a report by BBC.