Police said there is "gang-related activity" related to this case.
The Richland County girl has been missing more than 5 weeks.
Here is everything we know on the heartbreaking case..
We asked officials about the AMBER Alert as investigators continue to search for the missing Cayce girl.
A statewide search is underway in South Carolina as authorities seek to locate a missing four-year-old Lowcountry girl. Heidi Renae Todd of Johns Island, S.C. disappeared...