An arrest had been made in connection with the robbery of the Family Dollar Store at 4909 MacCorkle Ave. in Spring Hill, authorities said.
The store was robbed at gunpoint just before 10 p.m. Oct. 23 when a man fled the scene with several thousand dollars.
Moses Jamar Wright, 20, of South Charleston was arrested Wednesday, said Detective A.R. Gordon of the South Charleston Police Department.
Further details are not being released as the case remains under investigation and more arrests may be forthcoming, he said.
Wright is lodged in South Central Regional Jail.