Authorities say 18-year-old Lester Mosley Jr. of Central was arrested Friday night at a motel in Toccoa, Ga. Authorities have been looking for him since Dec. 10, when three others were arrested and warrants were issued for Mosley's arrest.
The four are charged with murder, armed robbery, burglary and possession of a weapon during a violent crime.
They are accused of killing 23-year-old Steven Grich.
Investigators believe the four intended to steal a large amount of marijuana but only a few grams were taken.
Pickens County Assistant Sheriff Tim Morgan says he does not expect to make any other arrests in Grich's death.