The victims were sitting in a parked car in the 4100 block of West Taylor Street when they were shot, police said.
The man was in the 1000 block of West 105th Street when he was fatally shot, police said.
The men were in the 600 block of West Barry Avenue, police said. Two were in good condition and one was in serious condition.
The 26-year-old man was shot in the back while leaving a gas station in the 500 block of East 67th Street, police said.
Mom creates garden where son was shot, hoping people will remember him, maybe help solve his killing
“We just want justice for him, and we just want his name to be remembered,” said Nicole D’Vignon, the mother of Nicolaus Cooper, gunned down in March in Chicago Heights.