No need for speculations, literally any theory may be a valid one and we simply don't know. Agree re that silencers, they are trivial to make if one has some basic skills and equipment, the problem is usage - you can't use them anywhere where folks may ask questions. Don't mean for hits obviously but some training with silencers is required to wield them well. But maybe in rural US nobody bats an eye, hard to say from across the pond.
But if I have to speculate (who doesn't love that) - could have been a disgruntled veteran. Most of them have some serious health issues, and imagining situation where he isn't treated anymore but feels he should have been isn't that hard for such bad public healthcare system as US has. Or hardcore NRA member with same motivation. On youtube some gunsmith videos go up to (tens of) millions of views.
> But maybe in rural US nobody bats an eye, hard to say from across the pond.
In rural US, people can just shoot in their back yard or public land away from people entirely. At a range (rural or not) where other people are around, you'll get attention if you have anything unusual.
> But if I have to speculate (who doesn't love that) - could have been a disgruntled veteran. Most of them have some serious health issues, and imagining situation where he isn't treated anymore but feels he should have been isn't that hard for such bad public healthcare system as US has.
I'm guessing you're not super familiar with the US healthcare system. The person murdered isn't responsible for the healthcare that veterans or others in the public healthcare system receive. They were the CEO of the largest private insurer, which is the health insurance many of us would rely on through any non-government job. One of the common frustrations with private health insurers is that they deny care that people feel that they need, but the insurer doesn't agree. The public opinion here (and suggested by the words written on the cartridge casings) is that this is related to this.
FYI: In a huge majority of the land in the US, there is no restriction on shooting. Private land outside of cities is fair game, much of the parkland/government owned land is legal for target practice. It really isn't uncommon to hear gunshots, or see shooters out in the country. Shooting with a handgun out in the woods is what some people do when the weather is nice.
Unlikely to be a disgruntled veteran with health issues. Their care is provided by the Veteran's Administration hospital system at no cost. While the VA doesn't have a great reputation, in recent years in has been paying for veterans to see providers outside the VA system also.
But if I have to speculate (who doesn't love that) - could have been a disgruntled veteran. Most of them have some serious health issues, and imagining situation where he isn't treated anymore but feels he should have been isn't that hard for such bad public healthcare system as US has. Or hardcore NRA member with same motivation. On youtube some gunsmith videos go up to (tens of) millions of views.