Used By:Katie Singer Submitted By:Katie Singer Added On: 08/15/2015 at 8:00 PM EDT Image Caption: Central DuPage Hospital Active Shooter Exercise at College of DuPage 2014 56 Owner Name / Source: COD Newsroom URL of Owners Page:https://www.flickr.com/people/41431665@N07/ Image Source: ImagesAttr License:Attribution 2.0 Generic Notes: From Commons Search "hospital" Search