It happened at around 3:30 a.m. Saturday as the 34-year-old victim was walking to his vehicle in the 3700 blk. of N. Spaulding in the city's Irving Park neighborhood.
According to police, the three suspects got out of black sedan and demanded the victim's vehicle.
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That's when the victim removed his handgun and fired at the suspects, police said.
No one was hit and the suspects all took off in the black sedan.
No arrest have been made so far.
Area Five detectives are investigating.