Three people were shot, one fatally, in separate overnight shootings on the city's South and Northwest Sides.
Shortly after 2 a.m., a 20-year-old man was shot in the back of his head while riding in a car on the city's South Side.
According to preliminary reports, the 20-year-old was seated in one of the car's back seats when a bullet entered through the rear window and struck him in the head.
The man, Hakeem Walton, was driven to Advocate Trinity Hospital and later transferred to Advocate Christ Medical Center in Oak Lawn, where he was pronounced dead at 6:35 p.m., according to the Cook County medical examiner's office.
According to preliminary reports, the man and two passengers in his vehicle were northbound on Western Avenue when a dark-colored vehicle pulled alongside, Maribelli said.
An occupant of the dark-colored vehicle opened fire and a bullet went through the rear passenger side window, Mirabelli said. That bullet struck the driver in the right side of his back, police said.
The man drove himself to Swedish Covenant Hospital, where his condition was stabilized. The man was expected to be transferred to another hospital, Mirabelli said.
The passengers of his vehicle, a woman in her 20s and a 30-year-old man, were not injured, Mirabelli said.
About 11:30 p.m. Friday, a 24-year-old man was shot on the 6900 block of South Vernon Avenue in the city's Park Manor neighborhood by a man who asked him if he wanted to buy marijuana, Estrada said.
According to preliminary reports, the man was walking on the street when someone approached him and asked him if he wanted to buy drugs, specifically, marijuana. The victim refused, and the person pulled out a weapon. The victim was then struck as he tried to flee, Estrada said.
The man was taken to John H. Stroger, Jr. Hospital of Cook County with wounds to his leg and lower back.
As of 10:45 a.m., no one was in custody for any of the attacks and police were investigating.
Tribune reporter Adam Sege contributed.