Tyrone Warfield pleaded guilty last year to possession of counterfeit devices after vehicle search.
Brothers Sultane Roome Salim, 43, and Asif Ahmed Salim, 37, face up to eight years in a federal prison.
Lucas County Common Pleas Judge Gene Zmuda previously gave Rex E. Davis, 47, opportunity for treatment.
Gov. John Kasich has proposed a crackdown on courts that fail to report as part of a package of gun law reforms.
Remains of Ora Sharninghouse, Jr. were recovered from the north Pacific in 2014.