Podcast:Dateline NBC Published On: Wed Feb 08 2023 Description: In this Dateline classic, Julie Keown succumbs to a mysterious illness after growing more debilitated and depressed by the day. Doctors later find antifreeze in her system. Was it murder, an accident or, in her despair, did she take her own life? Dennis Murphy reports. Originally aired on NBC on January 9, 2009.