Hypothetically, if you are a witness or whistleblower who's adversary was a very big corporation (such as boeing), what measures could you take to prevent yourself from being "suicided"?
I can't believe no one has said to keep and train with a gun. The best way to live is to kill your killer. Secure channels and home security cameras won't do shit if you don't have a good way to physically defend yourself.
This isn't the movies. They aren't sending one person you can get into a fight with. They'll just shoot you and ransack your house to make it look like you died in a robbery gone wrong. Just don't be there.
So, what, just be homeless instead? I don't understand how having a tool to physically defend your corporeal form could possibly be a bad thing, and this counterpoint makes no sense.
*living in a van could actually be a decent protective measure though, so that's kinda funny.
That's why I said keep and train, as in practice often and thoroughly. If you just buy a gun and shove it in your nightstand, you're not going to be effective with it. You have to practice to get good, and that practice will save you if it ever comes to it.
Just because a gun won't magically eradicate the killer for you, it's not worth having? If we're talking about maximally increasing the odds of your survival, we should be including every advantage you can get. If two people are being targeted for a killing, assuming all else is equal, the one that has a gun they are proficient with on their person is objectively more likely to survive than the one that doesn't. You don't need to be John Wick, you just need to not die.