JOHNS CREEK, Ga. — Tiffany Sims wants justice for her daughter.
More than six years ago, 17-year-old Mercedes Chico-Sims was found dead at a Roswell pool near her Johns Creek home.
On Nov. 25, Elijah Foster pleaded guilty in Fulton County Superior Court to concealing the death of another and making a false statement. He was sentenced to six years in prison and four years of probation…