WHy would any Jihadists wanna crack of just 1 shot from an AK47 when they could have just emptied at least three spitters in his (Snyder's) direction?
Good question; maybe his gun jammed. AK's are reliable weapons, but old, moldy ammo or a very uncared for weapon could cause such a malfunction.
=====================================================================================================
My guess is that the shooter was a relatively better trained sniper than most. He fired one shot, hit his target, and got the heck out of there.
Fire two or more shots, and an Army fire team with heavy auto's, mortars, and perhaps air support will identify his position and rain hell upon him.
SFS