CHICAGO — Four people, three in an SUV and a pedestrian crossing the street, were injured during a single shooting in the Loop around 1:35 a.m., according to Chicago police. The downtown shooting came on the heels of a particularly violent weekend, which led to the cancellation of a performance of the musical “Moulin Rouge,” drew the ire of Mayor Lori Lightfoot and has hoteliers and restaurateurs who rely on the area’s safety on edge. Chicago police were called to the 400 block of South Wells Street, near its intersection with West Van Buren Street, for a report of a shooting that injured four…