“He said he heard automatic gunfire.”
Where all these people getting these machine guns?
I have some very choice Class III Firearms - full-auto, select-fire, suppressed - purchased 2001-2006, and the background checks were only 2-3mos, and appropriate $200 tax stamps.
I’d imagine I could pretty easily get ahold of just about any weapon with or without Background & Tax Stamps routine; being very careful in the process, under the radar. Happens all the time.
Doesn’t say if he’d purchased/owned legally.
Then again, it could be perfectly over-the-counter “Bump-Slide Fire Stock” enabled:
http://www.slidefirestock.com/?gclid=CIWUjYfv57gCFQya4AodCzQA5g
&
http://www.youtube.com/watch?v=ufmPQfB1k9A