DC terrorist attack on National Guard

Footage has emerged of approximately 10 seconds worth of the attack on the National Guard in DC, which left one servicemember dead and another in critical condition as of the time of this being published. The video is reflective of the rapid nature of these types of ambush-style attacks, with one point of the video potentially showing one of the victims of the attack attempting to maneuver around a bus stop and appearing unarmed. Another possibility is that this individual is a Guardsman (possibly a Major, details are difficult to nail down) that took the fight to the terrorist with a folding blade. In at least one report I read, the terrorist was stabbed multiple times in the back of the head. There appear to be at least two armed National Guardsmen in this video, as well, accounting for the gunshot wounds in the posterior of the terrorist. The first, seen early in the video, appears to withdraw once the attacker rounded the bus stop. Although I can't be certain, it appears as though he's attempting to clear a malfunction on his firearm. A second National Guardsman appears in nearly the same location, possibly coming from right of frame, and engages the terrorist. As the vehicle recording drives by, both the victims of the attack and the terrorist attacker can be seen in frame. Shortly following this snippet, additional National Guardsmen and US Secret Service personnel subdued the terrorist. I am tracking the terrorist's background as being associated with CIA-backed Afghan operatives aligned with US Forces in Afghanistan. I get it. This is a terrorist. He has crossed the boundary from partner force to future fertilizer. I'm not saying his name, F-that dude. -Ronnie