Malik Dajour Garner, 18, of Conway has been arrested in the fatal shooting of David John Bennett, 54, of Conway on Nov. 21.
Bennett was sitting in his taxi when Garner shot him in the chest one time.
Garner is the second person who was arrested in connection with the murder.
Lloyd Edward Pertelle, 18, of Conway was arrest on Nov. 23 and was charged with accessory after the fact to felonly murder.
The investigation is still ongoing and police ask that anyone with information contact the Conway Police Department at 843-248-1790 or Crime Stoppers of the Low Country at 1-888-CRIME-SC.