The problem is there is a simmering domestic nationalistic terrorism threat to the country - and that is news.
The killer in TX directly referenced it, as did very many of the prior mass-murders of recent. That is noteworthy, and fundamentally different from people killed in a gas station robbery.
This rising domestic terrorism is fed and incited by nationalistic groups who have explicitly stated this as their plans and goals.
Yes the media could adjust how they report it, but that's not the root problem here. It's an intentionally fostered growing domestic nationalist terrorism.