Thirty-one-year-old Lee Richardson Jr. was shot to death during a robbery in December 2005.
Authorities say 34-year-old Ishmael Clark and two co-defendants were robbing Richardson and his father when the shooting happened. Lee Richardson Sr. survived.
Cook County Judge Joseph Kazmierski sentenced Clark on Wednesday to 180 years for murder and the attempted murder of three police officers after the shooting.
The Orlando Magic signed Quentin Richardson as a free agent last month.