Source: POLITICO - Link
But experts say the attack is hugely worrying for reasons beyond what the Senate is debating. Unlike other recent spasms of American violence, this was not the work of a lone wolf, nor of a small cell of radicals. The pathway to an attempted government overthrow unfolded in public, out loud on the internet, in a process that experts call mass radicalization.
A good article on the difference between the current right-wing extremist violence and others from the past. Social media is an accelerant.