Some Chicago City Council members are trying to extend Chicago's contract for the ShotSpotter gunshot detection system, but Mayor Brandon Johnson is dead set on ending it. The head of the company that makes ShotSpotter is trying to make the case for the alderpersons. WBBM Political Editor Craig Dellimore reports.

Photo by Erin Hooley/Chicago Tribune/Tribune News Service via Getty Images

<p>Some Chicago City Council members are trying to extend Chicago's contract for the ShotSpotter gunshot detection system, but Mayor Brandon Johnson is dead set on ending it. The head of the company that makes ShotSpotter is trying to make the case for the alderpersons. WBBM Political Editor Craig Dellimore reports.</p>
<p>Photo by Erin Hooley/Chicago Tribune/Tribune News Service via Getty Images</p>

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