Robert Pernell, Jr. is now in custody, accused of murder.
The Barnwell County Detention Center says he turned himself in Tuesday morning.
Investigators believe he shot and killed 25-year-old Shaquile Atkins.
The coroner confirms he was found dead this weekend on Elko Street in Williston.
An autopsy will be performed soon.
Count on NewsChannel 6 for any further developments.