I don't really even get the conspiracy theory that he was murdered, if Boeing etc are all so knowing and powerful why didn't they kill him years ago, well before he could tell his tale? Now they kill him because he already spoke out and they want to put the spotlight on themselves? The whole thing doesn't really make a lot of logical sense.
It sounds like you have some unrealistic overestimate of your safety against a determined criminal. This just an older gentleman, far away from home, alone, with no security.
One method is to hire a junky, or a homeless person, or some other desperate person to commit a crime. Affordable to the middle class! And even if they are caught, they would not know your identity.
"Boeing etc are all so knowing and powerful" Wait Boeing makes most of its money through military contracts, downplaying its "power" and importance is slightly disingenuous .
You completely missed the point that...if Boeing knew he was going to blow the whistle, and they are so powerful...they'd have killed him beforehand. Not very smart of them to kill someone AFTER they blew the whistle and then make everyone think you did it. That just puts you even more into the spotlight and his testimony is already publicly available. Doesn't sound like a great conspiracy, much less a theory.
