I think the confusion is arrested and in custody are one in the same. If they arrest you then you are in their custody. The ones they have not arrested yet are still at large. Which is just another term for not in custody.
Twelve of the 15 defendants charged federally were arrested at various locations in North Texas, including at and near the club, which is known as Eternal Eden Afterhours, located at the Jaguars Club on Reeder Road. Firearms and drugs were seized during the arrests.
Defendants indicted are listed below; those marked with an “*” are in custody:
So who do you believe to be "at large"?
http://www.justice.gov/usao/txn/PressRelease/2014/DEC2014/DEC9Canelo, et al_indict.html
This is from the US Attorney's office.