i'm skeptical that any corporation worth more than a billion has assassinated someone in the US in the last 50 years.
but i simply do not believe any conspiracy theory i've seen about domestic US assassination by billion+ dollar company and i think people need to be realistic about the often cluster B individuals who tend to make whistleblower claims and their likelihood of suicide.
IRL companies barely release public statements without consulting lawyers for fear of minor risk and any criminal willing to do murder-for-hire is likely to be unstable, sloppy, have a history of crime and likely to get arrested in the future, and/or blackmail the company the second they fall on hard times.
certainly, if i'm a billionaire owner, i'm not hiring a hitman