Elgin police responded to a reported shooting at 7:40 p.m. Thursday. Witnesses gave police a vehicle description and officers located the car a few minutes away.
Police said the vehicle had several people, including Nestor Alvarado, 16, of Elgin, who had a single gunshot wound to the chest.
Paramedics transported him to Saint Joseph's Hospital, where he was pronounced dead.
Police said the shooting was gang related. Anyone with information about the shooting is asked to call Gang Crimes at 847-289-2646 or the anonymous crime tip line at 847-695-4195.