The suspect, who was wearing a long black coat with a fur collar, was running from officers who had tried to question him.
The officer, identified as Commander Paul Bauer, was transported to Northwestern Memorial Hospital where he later died. Superintendent Johnson said the police arrested a suspect and found a gun. The suspect was cuffed and a gun was recovered at the scene, he added.
On Tuesday, 53-year-old Commander Paul Bauer was fatally shot, while trying to apprehend a male suspect in downtown Chicago. She said she could not tell if either was an officer.
Moments later, officers discovered Bauer in a stairwell.
Officers on site immediately issued a radio warning, and provided a description of the perpetrator. He was on the stretcher, there was blood and they were doing (CPR). "And I said to the girl next to me, 'Is that what I think it is?' And she said 'Yep.' ..." I heard that the door is locked there.
"His death is a tragic reminder of the unsafe duty the men and women of our police department accept to ensure the safety of us all", Emanuel said in a statement. "I have never been thanked more for my service in the last two to three years total, compared to the previous 28 years".
Witnesses and a police source told Fox News that police seemed to be responding to a robbery, and the fallen officer was shot as he chased the suspect. Information is still coming in at this time, but I wanted you to know as soon as possible.
Johnson said he's spoken with Bauer's wife and daughter and asked for the city to keep them in its thoughts. "They taped it off, so we couldn't get out".