The off-duty officer saw a 21-year-old man attempting to break into a vehicle at West 65th Street and South Pulaski Road about 12:15 a.m.
A 25-year-old Gurnee man and three juveniles were arrested for a “car hopping” spree that allegedly ran through a half dozen area communities.
More than two dozen police officers spent several hours on Thursday searching for a burglary suspect, but the manhunt came up empty.
Police are warning residents of the South Side Bronzeville neighborhood to be careful after a recent surge of car burglaries.
Police in southwest suburban Chicago Ridge have increased patrols after at least 15 cars were burglarized last weekend.
A teenager has been charged with a series of thefts from cars in northwest suburban Arlington Heights.
17 break-ins in all. Cops ask for public’s help.