Officer Eduardo Marmolejo and Police Officer Conrad Gary were struck and killed by a South Shore Line commuter train while investigating a shots-fired call in the area of 103rd Street and Dauphin Avenue at 6:20 pm.
They were investigating the sounds of gunfire that had been detected by a ShotSpotter sensor in the area. As they arrived at the scene they observed a suspect running up an embankment toward the railroad tracks. They were both struck by the outbound train while they pursued him across the tracks near the 103rd Street Rosemoor station.
A handgun and shell casings were recovered near the scene by other officers. The suspect they were chasing was apprehended a short time later.