Two groups of male teens had argued before the shooting, which sparked masses of festivalgoers and shoppers to run for cover, according to a police report.

A juvenile was in police custody on weapons charges Sunday, after a shooting that left a young woman wounded outside the flagship Chicago Macy's store amid early holiday festivities a night earlier.On Saturday,

On Saturday, police said a 19-year-old woman was walking on the sidewalk near the intersection of State and Washington streets shortly before 9 p.m. Police told Ald. William Conway (34th) that a juvenile suspect was in custody Sunday evening in connection with the incident,