A new charge has been added against a man awaiting a murder trial in the killing of a Ponte Vedra Beach woman in 2010.
Joseph Roberts is accused of killing 45-year-old Brittany Tavar (pictured below).
The new charge against him stems from an incident in September in which deputies said he assaulted fellow St. Johns County jail inmate Richard Edsall, who apparently had become a witness in the case.
Roberts was arrested in Seattle three months after Tavar's killing. He confessed to beating Tavar with a hammer and stabbing her, deputies said.
Roberts, a transient who had been living with Tavar, had made a DVD for her to use in a court case in which she was involved, an ongoing dispute with a neighbor.
Tavar and Roberts got into a fight over the DVD, and he killed her, deputies said.
Investigators found Tavar's body after they said Roberts confessed to killing her.