They're blaming the gun shop.
Let me guess, they penetrate armored cars and stuff? And they have plastic on them so they must get through airport metal detectors too!!! The medias ignorance knows no bounds.
End of useless sarcasm.
1. The Mac had a vented handguard flash suppressor, not a "silencer."
2. How do they know the weapons were NFA automatic? Did the suspect fire a string of rounds that positiviely identified it as full-auto?
3. The "easy access" to firearms in ILLINOIS is completely to blame....(newscaster in last 30 secs of video)
They couldn't be NFA autos as only honest people go through the hassle of the NFA blackmail to own one.