Billy Anderson pleads guilty to March 2022 JC murder of Brionah Tester

JONESBOROUGH, Tenn. (WJHL) — Brionah Tester’s killer, who was arrested six times while on probation in the months leading up to her death and bonded out each time, has pleaded guilty to the March 18, 2022 murder of the 20-year-old in Johnson City.

Billy Anderson, already in prison on felony drug charges, pleaded guilty to second-degree murder Friday in the shooting death of Tester.

On March 18, Police found Tester dead of a single gunshot wound at a west Johnson City apartment complex where they said Anderson had been staying “off and on.”

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Anderson, 35, also pleaded guilty to attempted first-degree murder for an attack on another inmate at the Washington County Detention Center in October 2022. An affidavit in that case stated that Anderson stabbed another inmate with “some type of sharp glass material” after entering the victim’s cell following recreation time.

His sentencing in both cases was set for July 10. He’s already serving a 20-year sentence on methamphetamine charges from a September 2022 incident in Johnson City.

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Anderson was released from prison in September 2021 and committed a string of felony drug offenses and thefts following his release. He had been in prison after being convicted on multiple charges in May 2013, including attempted second-degree murder.

By the time he killed Tester, Anderson had been arrested half a dozen times, with each arrest marking a violation of his probation. Despite all of his criminal history in the state of Tennessee, Anderson was allowed back on the street each time after posting bail. His bond never surpassed $30,000.

Anderson will serve a minimum of seven years on the meth conviction. Second-degree murder is a class A felony that carries a sentence of 15-60 years depending on other factors.

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