I think people tend to think that modern politics is how all politics was done and... nah. Before we had more robust judicial, communication, and surveillance systems, if someone threatened your business and you were wealthy enough, having them killed and dumped in a bog was 100% on the fuckin table.
https://www.courtlistener.com/docket/60073359/steiner-v-ebay...
No, I'm not. It sounds like a very interesting read, though. I don't think those things tended to happen over here, beyond mafia-style illegal dealings.
The Pinkerton detective agency has a long history of being the go-to contractors for corporate violence against labour organisers: https://en.wikipedia.org/wiki/Pinkerton_(detective_agency)
Luckily no American corporation would ever murder someone who threatened their financial interests, nowadays.