The shooting, which appears to be the work of a lone shooter armed with a hand gun, happened at a Church's Chicken at 66th and Halsted just before seven o'clock Tuesday evening.
Police say it started with an altercation between two men outside the restaurant. One man apparently chased the other inside and started firing, hitting six people. Two were pronounced dead at the scene and four others were taken to hospitals in critical condition.
"My first thing, I just blacked out and I fell to the floor. I didn't know how to react," said Diamond Brown, who said her friend, Dantril Brown, 17, was among those shot. His condition is unknown. Friends say the teenager, whose nickname is "Mac," is a junior at Prosser Career Academy.
"He's just loveable. He's real friendly. He's caring all the time ," said Asia Dennie, friend.
"He did nothing to nobody. Why would you harm people that does nothing to nobody? Y'all have all this violence on the street, and can't nobody stop it. I can't, I don't understand," said Dimitrius Doughty, friend, as tears streamed down his face.
"My baby was a good baby, you know. I raised him since like grammar school. Him and my daughter were real close...he was a good boy," said Latoiya Brown, friend, also struck by grief.
Two of the shooting victims -- a 16-year-old boy and a 51-year-old man -- are being treated at Stroger Hospital. Both are in critical condition.
The other two victims were taken to Christ Medical Center in Oak Lawn. A 17-year-old boy and a 58-year-old man are both in critical condition there.
The gunman has not been apprehended. There is no description of the suspect or a vehicle.