[m1911]

Semi auto AK74s are available, I see them in the Shotgun News a lot, along with various ammo. I agree that it's probably not the weapon though, whatever the shooter's motivation and background. I suspect it is an "evil black rifle" for a couple of reasons: It allows the shooter to fantasize about actual combat if that's the brand of sicko we're dealing with, and if it is an ideologically motivated shooter, it will allow him to "take a few with him" when they get him.

[muawiyah]

One or more witnesses described the weapon. To a degree we have to assume they know what they were looking at because many of them were from Arab countries where the AK-74 is standard issue!

BTW, the HomeDepot parking garage at 7-Corners is well-lit and open 24 hours per day!