On April 21, prison officials discovered the downed personal drone near the perimeter of maximum-security Lee Correctional Institute near Bishopville, S.C.
Local police were able to trace the aerial transport to 28-year-old Brenton Lee Doyle, who was arrested and charged with drug possession and attempting to furnish contraband to inmates.
But security footage from a local convenience store revealed a second smuggler who appears to have bought many of items found with the drone. After months of searching, police are still unable to figure out his identity.
"As technology gets more advanced, we have to find more advanced ways to fight that,"Stephanie Givens, the Lee Correctional Institution spokeswoman told ABC News.
Givens declined to give specific model information about the drone, only saying it was "capable of flying long distances."
Although this is the first known incident of its kind in South Carolina, a less technologically advanced group of criminals in Georgia attempted a similar operation with a remote control helicopter in November 2013.