CBS46 has released the age progression of Nacole Smith’s killer. But there’s more that could be done to solve her case.

Fourteen-year-old Nacole Smith was brutally raped and murdered on her way to school. Her murderer has never been apprehended, but police know he’s attacked at least one other teenager. CSI Atlanta shares new details that could help track him down.

More than 100 bullets and bullet fragments were uncovered at the scene of the lass mass lynching in Walton County, Georgia. So why was the case closed, without resolution, by the FBI? CBS46 Crime Scene Investigator Sheryl “Mac” McCollum and

Who murdered Tupac Shakur? That’s just one of the many mysteries CBS46 CSI Sheryl “Mac” McCollum has investigated in her career.

CBS46 anchor Karyn Greer and CBS46 CSI Sheryl McCollum uncover new evidence in the country's last mass lynching at Moore's Ford Bridge in Walton County, Georgia.