In a case that has sent shockwaves through Mississippi, 15-year-old Carly Gregg stands trial for the harrowing murder of her mother, Ashley Smylie, and the attempted murder of her stepfather, Heath Smylie.

Carly Gregg, of Brandon, Mississippi, has been accused of shooting her mother and attempting to kill her stepfather after returning home from school

Chilling footage showed the moments a Mississippi teen murder suspect allegedly shot and killed her mother before returning to the family's kitchen to text.

Carly Gregg, a 15-year-old girl from Mississippi, faces charges of murder and attempted murder after allegedly killing her mother and shooting her stepfather. The incident occurred following the discovery of her drug use by her mother.

Carly Gregg, 15, is fighting murder charges with an insanity defense after she shot her mother Ashley Smylie dead and attempted to kill her stepfather.