I wondered about that, too. If he is being charged at the federal level because he was out of the service, what difference does it make what district he was charged in? Id imagine he is in the Louisville district because it encompasses Ft Campbell. If they are charging him there, why not just turn him over to the Military?
If he was retired or owed time in the IRR then one would think that he would be activated and subsequently charged under UCMJ.
I know the info in the article is probably sketchy, but I was wondering if the Marine lawyer could give his opinion.