A year after the bombing at Harvey's Resort Hotel, the FBI arrested John Birges; his girlfriend, Ella Joan Williams; and the two men he hired to help deliver the bomb, Willis "Bill" Brown and Terry Lee Hall. Birges' two sons, John W. Birges and Jim Birges, cooperated with authorities and were sentenced to probation. Brown pleaded guilty for a reduced sentence, and the others were tried and convicted on federal charges, and later faced state charges.