CHICAGO (CBS) -- Chicago Police late Wednesday were trying to find whoever shot and killed an off duty U.S. Postal Service employee in Bronzeville.

CHICAGO (CBS) -- Chicago Police late Wednesday were trying to find whoever shot and killed an off duty U.S. Postal Service employee in Bronzeville.

Details surrounding the incident are limited as the investigation is ongoing. The U.S. Postal Inspection Service is offering a substantial reward of up to $50,000 for any information that could lead to the arrest and conviction of the suspect or suspects involved in the shooting.

Details surrounding the incident are limited as the investigation is ongoing. The U.S. Postal Inspection Service is offering a substantial reward of up to $50,000 for any information that could lead to the arrest and conviction of the suspect or suspects involved in the shooting.

A United States Postal Service letter carrier was shot and critically wounded Tuesday during what police say was a robbery attempt in broad daylight on Chicago's Northwest Side.

Police said the mail carrier was delivering mail Saturday when Monroe repeatedly rammed his car into the mail truck.

A United States Postal Service letter carrier was shot and critically wounded Tuesday during what police say was a robbery attempt in broad daylight on Chicago's Northwest Side.

Police said the mail carrier was delivering mail Saturday when Monroe repeatedly rammed his car into the mail truck.

Our objective was to evaluate the internal controls over travel expenses within the PRC to determine if they were properly supported and in compliance with travel practices, policies, and procedures.

At the time, Americans were already struggling to adapt to three-digit area codes for long-distance telephone calls, so promoting the five-digit ZIP (short for Zone Improvement Plan) Code was a tough sell.

The Office of Personnel Management (OPM) released three videos today to help federal employees and retirees better navigate their online retirement services accounts. 

At the time, Americans were already struggling to adapt to three-digit area codes for long-distance telephone calls, so promoting the five-digit ZIP (short for Zone Improvement Plan) Code was a tough sell.