In a small town everybody knows who the whores and drunks are. With today's technology I firmly believe the government has a stockpile of terrorists and deranged young males living on the fringe.
With all the information at hand (Facebook posts and pipe bombs)... with the too perfect timing (acknowledgment of Trump spy)... it is reasonable to assume that the government knew about Dimitrius and provoked him.
Hell, provoke or cover up.... Ask yourself what we know about the Vegas shooter.
Occam's Razor. Or in the word's of Ptolemy, "We consider it a good principle to explain the phenomena by the simplest hypothesis possible."
___________
Hmmm. What do you think about, as you say, the government having a stockpile of terrorists and deranged young FEMALES too? Just for the tough times.
;-)