Zenon Santiago-Hernandez, 44, was pronounced dead early Tuesday, officials said.
The boy was shot in the leg, police said.
Tykeece Hilliard was shot in a botched gang hit in Woodlawn last week, police said.
Ruben L. Nieves was charged with attempted murder in West Side attack.
The latest homicide was a man shot and killed while driving on the Dan Ryan Expressway.
Tykeece Hilliard is expected to recover from his injuries.
Carmen Jones, 32, is in stable condition after a shooting in front of her home.
The mother disputes police reports that the target of the shooting was her gang-banger boyfriend.
The man was in good condition after he was shot in his thigh, cops said.
The 21-year-old man was in stable condition, police said.
Alberto Valencia, 45, of suburban Round Lake died Tuesday, police said.
Police said they found the man, Raphael Smith, dead of apparent head trauma in his Park Manor apartment.
Patrick Sykes, 15, was in town visiting family and childhood friends when he was gunned down Thursday.
Patrick Sykes was shot to death a block away from his South Side home Thursday afternoon.
With president here for Downtown fundraisers, shootings marred the S. Side from Pullman to Bronzeville.
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