The 61-year-old was shot dead Wednesday night.
A brick building at Washington Park is covered in graffiti.
Dondi Antwan Nalls died in front of an apartment complex in 2017.
The victim was a high ranking member of the Somali Outlaws gang.
A woman was shot and left for dead by a member of a drug gang.
It followed a dispute over the right to display gang colors on the premises.
They were involved in street warfare with rival gangs.