The offender is in custody and there are no active threats, according to DeKalb County Sheriff Andrew Sullivan chicagotribune.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from chicagotribune.com Daily Mail and Mail on Sunday newspapers.
Elementary schools and a high school in Niles, Morton Grove and Skokie experienced lockdowns Thursday morning for different and unrelated reasons, according to police and school officials. East Maine School District 63 locked the doors after a man called government officials using threatening language, and Niles West High School experienced a technical error that caused unintended .