TBH I always wondered why people were shooting up malls and schools instead of the people who actually cause the societal conditions they're upset with
Edit: to be clear I'm not promoting this, it just never made sense to me
It's called stochastic terrorism or stochastic violence. Essentially people are made increasingly angry and violence prone. Either the object of their anger is inaccessible or too diffuse to actually target.
As a result, random acts of semi-targetted violence become increasingly common. If your objective is to create an atmosphere where people have a higher baseline level of fear, which can drive irrational reactionary behavior, it does wonders. It's also great at increasing violent acts against people you dislike without explicitly calling for it.
CEO's? Likely at home, shareholder meetings, board meetings, on their boat, private jets (which can be tracked), at their office, speaking at corporate events (annual sales kickoffs, etc.). It would take some work, but not that hard.