Mayor Johnson does not address how ShotSpotter alerted CPD to Officer Luis Huesca shooting – CBS2 (Chicago)

The first sign that Officer Huesca was in trouble came in at 2:53 a.m. Sunday, in the form of a ShotSpotter alert for four rounds fired at 5501 S. Kedzie Ave. It was not for another 4 minutes and 50 seconds that a 911 caller picked up the phone, reporting a man on the ground about a block away at 3135 W. 56th St. Police arrived at the scene sooner than if they had waited for the call.