Teen crowd grew on Halloween but police response kept it calm 

As Halloween evening unfolded Saturday evening in downtown Oak Park, the crowd of teens gathering there grew to numbers Oak Park police say were comparable to last year’s raucous event. However, with pre-planning and a notable police presence from Harlem to eventually Austin Boulevard, Oak Park police said Sunday there were no arrests made, no damage and no notable incidents. At 6:30 p.m. there were dozens of Oak Park officers and ranking officers deployed from Harlem to Kenilworth. Officers stood on street corners while squad cars were lining the street just west of the Target store in what appeared to be a command center. There were no indications of large clusters of teens at that early hour. But the crowd of teens grew through the evening as did the police presence. Calling on its mutual aid pacts, officers and squad cars from Berwyn, Bellwood, Broadview, Brookfield, Cicero, Elmwood Park, Franklin Park, Forest View, Maywood, Melrose Park, North Riverside, and Stickney j