I too believe this to be true... All signs point in that direction...
USMC vet. Not your typical antifa lowlife.
...... I created that post before I knew the perp was a Marine Combat Vet with PTSD ..... While it is still possible that he may have been a member of ANTIFA ..... I'm no expert but heck .... The PTSD can manifest itself in many ways ..... One of these is lashing out in anger and violence.
..... Heck ... It's even possible that he may have been triggered by the recent Midterm Elections!
.... In any case .... Long was wound up tight about something and when triggered he took it out on either the venue, someone inside, The election, or even All of these.