Since it looks like he just moved to Mass, isn't there a 60 day window to get the permits?
He would have been a citizen by that time.

Also it looks like they started looking at him buying while he was in another state.

I am thinking there is more to the story than whats in the article.

On another forum someone mentioned that he was called by the ATF(?) after buying a quantity of 223. Seems like the store reported the sale.