The man, who is in his 20s, will appear before a remand judge later in the day.
Two young women and a young man have already been detained on suspicion of involvement in the murder.
A man was shot dead in a car at around 11 p.m. on December 12. Several people were in the car when it was shot.
The case has received a lot of attention as a 12-year-old boy has previously been suspected of the murder. He contacted the police himself afterwards and has been taken into care by social services.
