Ogonnia Okeke, a 25-year-old African American man, was shot and killed on June 1, 2021, in the 9100 block of South Wentworth in Chicago. He was working on his dirt bike on a back porch when at least two gunmen exited an SUV and opened fire. Police recovered shell casings from three different firearms at the scene.

Federal prosecutors have charged four men — Joshua Broughton, 34; Grieg Macon, 27; Christopher Singleton, 24; and Jaron Davis, 22 — alleging they are members of the Rack City gang and that the killing was tied to a violent rivalry with a faction of the Gangster Disciples to which Okeke was affiliated. The indictment reportedly includes racketeering and firearm offenses and alleges the murder was committed to maintain and increase positions within the gang.

Investigators say social media played a role in the probe: Christopher Singleton allegedly sent threatening messages to rival gang members, taunted them after the shooting and shared messages and videos related to the killing. Search warrants on social media accounts are described as producing incriminating material that linked the suspects to the incident.

Does anyone have information about Okeke, the 9100 block of South Wentworth, or the people involved that could help fill gaps in the timeline leading up to the shooting?