Kiari Kendall Cephus, a member of the rap group Migos who is being held without bond after police say they found guns and drugs in the group's vans during a concert in Statesboro in April, pled not guilty during an arraignment Monday to additional charges stemming from a fight in the Bulloch County Jail. Jailed after the April 18 Spring Bling concert at Georgia Southern University, Cephus, known by the stage name "Offset," was initially denied bond due to a previous criminal record. While in jail, he initiated a fight with another inmate May 2 and racked up more charges - battery and causing a riot in a penal institution.