Cesario Cox, a 45-year-old African American man from Evanston, died after being critically injured in a shooting on September 15, 2015. The shooting occurred on the 1900 block of Emerson Street shortly after 5:20 p.m. while Cox was visiting another person; four individuals approached the building from the rear and began firing. Cox was struck in the head and died three days later at Evanston Hospital.

Investigators treated the attack as linked to local gang conflicts and believed it was retaliation for the fatal shooting of Donte Blackwell on August 31, 2015. Police said Cox was not actively involved in those disputes and was likely an unintended target. Officers had responded to gunfire at the same building on September 1, 2015, when shots shattered a vehicle rear window and damaged the building’s first floor. Commander Joe Dugan led follow-up interviews with witnesses and rival gang members, but no arrests were announced immediately and the case remained unresolved at the time.

Does anyone have information about activity around the 1900 block of Emerson Street in early September 2015 or about the shooting that could help investigators?