The teen twins accused of killing their mother earlier this year have been moved to the Rockdale County jail upon turning 17 - the age they can be considered an adult in Georgia's legal system.

Jasmiyah and Tasmiyah Whitehead were 16-years-old in January when they allegedly beat and stabbed their mother, Jarmecca "Nikki" Whitehead, 34, to death at their home in the gated Bridle Ridge subdivision off of Dogwood Drive.

The girls were already being charged as adults, but were reportedly kept at youth detention facilties after they were arrested in May.

Before their arrest but after their mother's death, the twins were placed with relatives in Stone Mountain and Clarkston but attended the same high school. They also attended Rockdale County High School while living in Conyers. 

Jasmiyah is represented by attorney Lowell Thomas and Tasmiyah is represented by David LaMalva.

The twins were indicted by a grand jury July 12 for the charges of malice murder, felony murder and aggravated assault.

The girls had also faced charges in juvenile court for other incidents. About two years ago, they had reportedly assaulted and jumped on Nikki Whitehead, after which they were sent to live with their great-grandmother. The twins' behavior and performance had not improved under their great-grandmother's care and custody was given back to their mother around the beginning of the year.

Both twins had entered pleas of not guilty in Rockdale County Superior Court in August.