He literally told a friend shortly before that, if anything happened, it wasn't suicide:
Speaking to ABC News 4 Jennifer, who didn't give a surname and was described by the network as a "close family friend" of Barnett, claimed he told her not to believe any reports of his suicide some time before his death.
She claimed he insisted "I ain't scared" before adding "but if anything happens to me it's not suicide." https://www.newsweek.com/john-barnett-boeing-whistleblower-predicted-death-scandal-1879548
“It really scares me, believe me,” Salehpour said of being a whistleblower and facing retaliation. “But I am at peace. If something happens to me, I am at peace, because I feel like, coming forward, I will be saving a lot of lives.”
I had a flight planned with Air Canada from Montreal to Halifax in May. The first flight was with a Boeing 737 max 8. When I found out it was too late. I couldn't change my flight or cancel without losing the entire price of the ticket minus the taxes. That's a few hundred dollars. I was just about ready to say fuck it and cancel and just take the losses.
Thankfully, there was a change in my flight time even a month before the flight was planned. That gave me the right to change my flight without any penalty. I called them right away to switch to a non Boeing flight.
There's no way I'm ever getting into a Boeing unless I have no other choice.
Honestly, at this point, air travel is so uncomfortable and unpleasant in general that I just avoid it unless absolutely necessary at this point. The only thing I will give air travel now over what it was when I was a kid is that they banned smoking. That's pretty much it. Everything else is worse.