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Three charged with first-degree murder in Hawkins death of Callie Ison

Staff report • Updated Feb 9, 2018 at 5:45 PM

ROGERSVILLE — Three suspects in the Hawkins County shooting death last October of 26-year-old Callie Mahayla Ison are in custody as the result of what Sheriff Ronnie Lawson described as an “intense, multistate investigation.”

The three were named last week in a sealed Hawkins County grand jury first-degree murder indictment and were identified by Lawson Friday.

William Cody Mullins, 23, 225 Ball Play School Road, Tellico Plains, Tenn., is already at the Hawkins County Jail and has been served with his warrant.

Charles Timothy Gray, 25, 3805 Stratford Lane, Louisville, Ky., is awaiting extradition in Louisville.

Augusta Dawn Hall, 27, 115 Mulberry St., Johnson City, is awaiting extradition in Georgia.

Gray and Hall are expected to be brought to Hawkins County next week.

On Nov. 24 of last year, the Hawkins County Sheriff’s Office responded to a wooded area off East Pumpkin Valley Road in the Clinch community after a deer hunter discovered a badly decomposed female body in a creek.

The victim was identified as Ison, 26, of Big Stone Gap.

Mullins’ indictment sets the date of her murder between Oct. 9-11, 2017.

Attorney General Dan Armstrong told the Times News Friday that he and investigators believe they know the motive for Ison’s murder, but because the investigation is ongoing, very little information is being released at this time.

A $1 million bond has been set for the three defendants.

Mullins is scheduled for an April 30 arraignment in Hawkins County Criminal Court, and assuming his two co-defendants are in the Hawkins County Jail by then, they will probably be scheduled for arraignment on that day as well.

The HCSO Detective Division was assisted in the case by the Tennessee Bureau of Investigation, Third Judicial District Attorney General Dan Armstrong’s Office, the Tennessee Wildlife Resources Agency, U.S. Marshals Service, Louisville Metro Police, Russell County (Va.) Sheriff’s Office, Wise County (Va.) Sheriff’s Office, Norton Police Department, Big Stone Gap Police Department and the ETSU Division of Forensic Pathology, William L. Jenkins Forensic Center.

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