Police didn't immediately say how Reaux was connected to the 34-year-old rapper's death. Young Greatness may be best known for his 2015 song, "Moolah," which reached the Billboard Hot 100 chart. The rapper's real name was Theodore Jones. He was fatally shot outside the eatery Oct. 29.
Police recovered Jones' stolen car after the shooting and released images of Reaux as a "person of interest." They also sought another man for questioning. It's unclear if Reaux has a lawyer who could comment.