Naperville police are looking for the public's help to find a man suspected in an attempted armed robbery late last month on the 600 block of Porter Avenue.
Police said the suspect approached a resident walking his dog about 5:50 p.m. Nov 30 and asked for directions. After getting the directions, the suspect displayed a black semiautomatic handgun and ordered the resident to turn over cash and his cellphone.
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When the resident refused, the suspect walked away. Police searched the area but could not find him.
The gunman is described as a black man wearing a dark hooded sweatshirt, jeans and dark gym shoes.
Anyone with information about the incident or the suspect is asked to call Naperville Crime Stoppers at (630) 420-6006. Callers may remain anonymous and are eligible for a reward of up to $1,000 for information leading to an arrest.