The shooting happened on Saturday at about 9:05 p.m. near 38th Street and Indiana Avenue, according to police.
CPD said the three men were outside when someone shot at them and ran away.
A 39-year-old man was shot in the chest and was taken to University of Chicago Hospital, where he died.
A man, whose age was not immediately known, was shot in the neck. CPD said he was taken to Insight Hospital in critical condition.
A 35-year-old man was shot in the left knee; he is expected to be OK.
No other information was immediately available.
Chicago police are investigating.
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