A warrant for Mustapha was issued in July by a Cook County judge. Mustapha was wanted for first-degree murder for a fatal shooting June 10, 2016, Croon said.
Jeremy H. Ray, 27, of Roseland was killed at 9:35 p.m. that day in the 8900 block of South Brandon Street in South Chicago. Ray was a documented gang member, police said at the time.
A pair of gunmen got out of a car, walked up and opened fire, striking Ray repeatedly. The shooters got back in the car and drove off, Officer Bari Lemmon, a Chicago Police spokeswoman, said in the wake of the fatal incident.
Ray was taken to Advocate Trinity Hospital and pronounced dead at 10:27 p.m.