New Jersey Polish man charged with illegal possession of machine guns

According to the US Attorney, NJ, "a Ringwood, New Jersey, man will appear in federal court today to face charges that he possessed 17 machine guns, which are illegal under federal law, U.S. Attorney Paul J. Fishman announced. Mariusz Cebula, 36, is charged by complaint with knowingly possessing machine guns, which are defined as weapons that can shoot more than one shot automatically, without manual reloading, by a single function of the trigger. Cebula was arrested yesterday by federal agents and will appear this afternoon before U.S. Magistrate Judge Michael A. Hammer in Newark federal court."
See story here...https://www.justice.gov/usao-nj/pr/passaic-county-new-jersey-man-charged-illegally-possessing-machine-guns


He faces up to 10 years imprisonment. The name sounds Polish. I don't understand this case. It says the cops went to his house to serve him with a temporary restraining order and then they discovered his arsenal. No one knew about this previously? Did he have a record? Is he legal in this country? Does he speak English? Did anyone ever explain to him that you cannot possess machine guns unless I assume, he was part of law enforcement? This case has more questions than answers. If he were Pakistani, this story would have made front page news. 

Cebula's arsenal

Okay, the story becomes a little clearer after  I read an article from nj.com. He did possess a firearms permit but he did not posses a permit for automatic weapons so some where along the way he crossed the line.  Cops were called in over  domestic violence restraining order.  

He appears to be a general contractor,,,,,http://www.bbb.org/new-jersey/business-reviews/contractors-general/mpc-general-contractors-llc-in-clifton-nj-90158620/

Well, since he may end up in the slammer, this is what he can expect in prison....http://www.amazon.com/PRISON-expect-Federal-Bureau-Prisons-ebook/dp/B011GTWLOG