Assel Al-Essaie, 23, died in hospital after being shot in the chest in Daniel Hill, in Walkley, Sheffield, on 18 February. He was taken to hospital but died soon after.
South Yorkshire Police said the 31-year-old was arrested on Tuesday and has been released on bail.
It brings the total number of arrests to 11 but no charges have been made.
More stories from across Yorkshire
Police have appealed for anyone with information to come forward.
Those arrested are seven men, two women and two teenage boys.
A man has been arrested on suspicion of murdering a man who was shot dead in February.