Rogelio Margil was 21 when he was shot in the head on November 8, 2014, in the Humboldt Park neighborhood of Chicago. The shooting happened in the 1600 block of North Tripp Avenue at about 7:30 p.m. after Margil and a group he was with encountered a rival gang member and an argument broke out. He was taken to Mount Sinai Hospital and died the following day at 3:22 p.m.; the Cook County medical examiner ruled the death a homicide from a gunshot wound to the head.

Authorities described the killing as gang-related and identified the shooter as an alleged gang member, but no identifying details or arrests were released immediately and the case remained under investigation. Witness cooperation was reported as limited. If anyone has information about the November 8, 2014, shooting in the 1600 block of North Tripp Avenue, please come forward to assist the investigation.