Today in History By The Associated Press Teen killed by Chicago officer had broken, troubled family By MICHAEL TARM and SARA BURNETT Obamacare troubles a gift to 2016 GOP candidates By Byron York The irony of Hastert's constitutional defense By Scott Slonim Mixed reviews on new closing rules By Ken Harney Home buyers shouldn't waste time on stubborn sellers What could cause a home's floor to sag? By Barry Stone See the winning images of our weekly photo contest It's a Gingerbread Christmas at Mt. Prospect museum Submitted by Mount Prospect Historical Society Festival Chorus concert to celebrate 50th year of making music Submitted by Donna Blackall, The Festival Chorus