The lady in the crowd warning people they were going to die is the most concerning to me of these strange occurrencies.
I assume you're familiar with the October Surprise method of ruling?
Every October some kinda 'big event' happens; You may wanna look into that a bit more as well :: because I'm not really sure what is going on. Was this guy a Manchurian Candidate?
October Surprise Videos on YouTube
Connections to Antifa, or Isis seem totally unfounded :: what's more likely is the white guy just snapped; like so many white men have done throughout the history of America; White men have carried out more instances of domestic terrorism than any other racial group.
We may want to examine white men in America closer, to understand what is causing them to be so violent and aggressive.
I am not familiar with the October Surprise theory, I will look into it. I see that Frontline (which is funded by the government) has a special on it...which is odd because PBS is government funded and it is a conspiracy theory about the government haha. Manchurian Candidate seems possible because of how unusual this case is. This guy had a job as an accountant and had no history of any criminal activity, although his father was allegedly a bank-robber.
I agree that he does not fit the profile of somebody acting on behalf of ANTIFA or ISIS, although many sources are now claiming that FBI are claiming he had connections to ANTIFA. We will see though.
I disagree about "white men" being predisposed to unhinged acts of terrorism disproportionately to other races. Many statistics of "White-male" terrorism are skewed because minor petty misdemeanors are included as "terrorism" while other violent acts are not, and those statistics also ignore the fact America was 90% white prior to the 1960's.