Chicago’s 911 center received multiple calls of suspicious activity, a fight, and even a man with a gun in the nearly 40 minutes that preceded the fatal shooting of a man on a troubled Lincoln Park bar strip late Sunday night, CPD radio transmissions show. But the local police district was in a “backlog” for nearly two hours, meaning dispatchers did not have any patrol units available to handle incoming service requests, and those calls did not generate a police response until it was too late.