When officers arrived, they found a 59-year-old victim with stab and slice wounds on her neck, hands, and legs, they said.
Her identity was not released.
BODIES FOUND IN NEW JERSEY HOUSE FIRE WERE STABBED; SUSPECT, 21, CHARGED
Officers took Williams, of Snellville, Ga., into custody.
He was booked into the Gwinnett County Jail without bail.
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It was unclear what may have sparked the attack. Police said additional charges could be added as investigators determine a possible motive.
Akin Williams, a Kroger employee, is accused of attacking his co-worker with a knife early Sunday.