Dean's family says he quickly fell into critical condition after being diagnosed with a MRSA bacterial infection. He is the second aviation whistleblower to die in the past three months.
This week brought more damaging allegations about Boeing as an engineer accused the company of taking production "shortcuts." He joins a growing list of whistleblowers who say they faced retaliation.
John Barnett made headlines when he went public, saying he wouldn't trust planes made in South Carolina to be airworthy. His family says Barnett suffered PTSD and anxiety from his work at Boeing.
Former engineer Arturo Bejar says he repeatedly raised the alarm to company execs about Instagram's harm to teens and they failed to act. Senators vow to pass a social media law this year.