White powder sent in mail ruled harmless
Published On: Aug 03 2012 04:19:00 PM CDT
Updated On: Aug 03 2012 04:53:04 PM CDT
Aug. 3, 2012: A suspicious substance that led to a hospital's emergency room being shut down ended up being harmless, but investigators are trying to figure out who mailed the substance and why. Mary Benton reports.