The result of radicalization of nutjobs by the fake stream media and their witch hunt against the Trump administration. These clowns are still at it with the Russian hacking BS (not of the DNC email servers, but voting machines):
https://youtu.be/Z9DStF0Okf8Anonymous sources in the know, of course. Machines that are fundamentally unhackable without being physically in contact with the machine were supposedly hacked
without actual interference in the vote count. Fake news if there ever was any.
Nutjobs like this shooter are inundated with this propaganda spew and think that the duly elected government is the result of some foreign organized coup. This particular one probably thought he was doing his patriotic duty.