Luigi Mangione

Both is the correct answer.

I'm just putting an emphasis on the healthcare industrial machine in the USA because it's causing more acute harm to the people of the USA than anyone else.

I won't disagree. Most billionaires are at least indirectly responsible for significant harm and loss of life. Whether they support, endorse or profit from inhumane, cruel and exploitative business practices, such as we see in the cobalt mines of the Congo, or other mineral mines whether for diamonds, lithium, or whatever...

Or they are profiting or directly befitting from people who are underpaid, and eventually, because of corporate profiteering, forced into poverty and they die because they are unable to afford to live... Or they are denying people life saving pharmaceuticals though supporting or profiting from the drug industry, or ownership therein (in whole or in part)....

Or they're more directly responsible for harm by being an active voice in, or in support of, denying, deposing, and delaying, anything that might reduce a companies profits, especially healthcare companies.

The reality of it is: when you achieve a certain level of monetary wealth, your money is invested. Frequently those investments support something that doesn't causes harm and death to your fellow humans.

Therefore: anyone with sufficient wealth to warrant investments, is almost always, someone endorsing, supporting, or profiting from the pain, suffering, and deaths, of other people. QED: all billionaires are evil, mass murdering pieces of shit, who should be strung up and quartered in the town square. I will settle for seeing their heads roll.

Where did I put my guillotine?