Cook County CrimeStoppers identified 24-year-old Jennifer Medrano as the woman killed on July 1 during a confrontation in which others were wounded in the 2200-block of South Wentworth.
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Police say two men got into an argument and started shooting at each other. Medrano was killed, and a 42-year-old woman was shot in the hand.
One of the gunmen, a 38-year-old man, was shot in the buttocks and was taken to Northwestern Memorial Hospital, in critical condition, authorities said.
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However, the second gunman can be seen in surveillance video running off.
From surveillance video, investigators have identified a person of interest in Medrano's death. Anyone with information should call Cook County CrimeStoppers or Chicago police.